Codex (OpenAI)
A Tier · 8.3/10
**GPT-6.1 Sol Ultrafast is now on the API rate card -- $12 input / $0.60 cached / $15 cache writes / $60 output per 1M up to 272K tokens, six times Standard, closing the DevDay 'coming days' promise -- and on 2026-10-09 the Codex desktop app gained Composer predictions (beta), which suggests your next message after each response for personal Pro users on GPT-6 Astra and GPT-6.1 Sol.** **OpenAI and Atlassian expanded their partnership on 2026-10-06: GPT-6 family models (GPT-6 Astra and the GPT-5.6 series are named) will power agents across Atlassian's platform and Rovo, more than 3,000 Atlassian developers already use Codex, and the Atlassian and Teamwork Graph CLI plugins connect Codex and ChatGPT to Jira, Confluence, Looms and Bitbucket pull requests.** **Two October notes: EU Codex output will carry OpenAI's invisible textGrain text watermark within weeks (API customers can opt in worldwide from 10/05), and the new Enterprise token rate card prices Codex at API Standard rates, names GPT-5.3-Codex as the code-review model and GPT-5.6 Luna as the auto-review model, and puts Astra Ultrafast at 6x.** GPT-6.1 Sol Ultrafast is still not on the API rate card as of 10/05. **DevDay 2026 (2026-09-29) was mostly a Codex release: GPT-6.1 Sol in Codex and the API at $2/$10 per 1M with cached input cut to $0.10, Codex Cloud (reusable cloud environments, tasks that keep running while your laptop sleeps, on Plus and up), a refreshed CLI with voice steering and an /agents view, Code Review in the desktop app with automatic cloud first passes, Codex Security Cloud with Daybreak Blue models and no separate Daybreak application, and the Agents API gaining computer use** -- plus GPT-6 Astra Ultrafast (300 tokens per second in Codex) on Pro 500 and Enterprise, with GPT-6.1 Sol Ultrafast 'coming soon'. GPT-6.1 Sol nearly matches GPT-6 Astra on DeepSWE at one-fifth of the token price and also landed in GitHub Copilot the same day. Still in place: GPT-6 Sol and Luna (9/22), the Agents API public beta (9/10) and the 8/31 retirement of GPT-5.4 from Codex. On 10/01 OpenAI scheduled GPT-5.3-Codex for API removal on 2027-04-01.
Score Breakdown
Benchmark Scores
Benchmarks for GPT-5.2-Codex (HISTORICAL -- this model was RETIRED 2026-07-23; scores retained for trend context only). GPT-6 Sol and Luna joined Codex 2026-09-22: OpenAI reports DeepSWE v1.1 68.8% (Sol, max effort) and 66.6% (Luna, max) -- first-party, third-party verification pending; see Known Issues
| Benchmark | Description | Score | |
|---|---|---|---|
| SWE-bench | Real GitHub issue fixing | 72% | |
| HumanEval | Python code generation | 95% |
Last updated: 2026-04-25
The Good and the Bad
What we like
- +Lives inside ChatGPT -- if you already pay for Plus ($20/mo), Codex is included at no extra cost
- +Parallel task execution is a real differentiator -- assign 5 tasks at once and come back when they're done
- +Code review feature catches bugs and suggests improvements before you merge -- genuinely useful, not just a gimmick
- +Sandboxed environments per task means it can't break your local setup -- runs tests safely in the cloud
- +GitHub integration lets it propose PRs directly, read your repo, and work on real issues end-to-end
- +CLI, web, and IDE extension gives you three ways to interact depending on your workflow
What could be better
- −Usage limits burn through fast -- 20-100 messages per 5 hours on Plus means heavy users hit the wall mid-task
- −Can't be corrected mid-task -- once you send a prompt, you wait for the full result, no steering
- −Struggles with complex refactors and architectural decisions -- great at straightforward tasks, mediocre on nuanced ones
- −Cloud-based GitHub integration is unintuitive to set up -- many users find the workflow confusing
- −No image input yet -- can't show it a screenshot of a UI bug and ask it to fix it
- −Response latency can spike to 3+ minutes per response during peak hours
Pricing
API -- gpt-6.1-sol (2026-09-29)
- ✓Cache writes $2.50; above 272K input the request bills $4 / $0.20 / $5 / $15
- ✓1,050,000 context, 922,000 max input, 128,000 max output, Apr 30 2026 cutoff; effort low to max, no none/minimal
- ✓Fast mode 2x, Batch/Flex 50% off; GPT-6.1 Sol Ultrafast now on the rate card at $12 / $0.60 cached / $15 writes / $60 output (above 272K: $24 / $1.20 / $30 / $90)
- ✓GPT-6 Astra Ultrafast on the API: $60 input / $6 cached / $75 writes / $300 output per 1M
Free
- ✓Basic Codex access
- ✓Quick coding tasks only
- ✓Explore capabilities
Go
- ✓Lightweight coding tasks
- ✓Codex CLI access
Plus
- ✓GPT-6 Sol + GPT-6 Luna in Codex from 2026-09-22 (Plus/Pro/Business/Enterprise/Edu; Free and Go get Luna in the desktop app)
- ✓Codex web + CLI + IDE extension
- ✓GPT-5.6 Sol / Terra / Luna (GPT-5.3-Codex already deprecated; **GPT-5.4 + GPT-5.4-mini retired from Codex 2026-08-31** -- migrate to gpt-5.6-terra / gpt-5.6-luna)
- ✓20-100 local messages per 5h
- ✓Slack integration
- ✓Cloud code review
Pro
- ✓10-20x higher rate limits
- ✓GPT-5.3-Codex-Spark (research preview)
- ✓Up to 2,000 messages per 5h
- ✓Priority processing
Business
- ✓30-150 local messages per 5h
- ✓10-60 cloud tasks per 5h
- ✓20-50 code reviews per 5h
- ✓Admin controls
- ✓Larger VMs
API -- gpt-6-sol / gpt-6-luna (2026-09-22)
- ✓Cached input $0.20 / $0.01; cache writes 1.25x input; above 272K input the request bills 2x input, 1.5x output
- ✓1,050,000 context, 128,000 max output, image input, structured outputs
- ✓Batch/Flex 50%, Fast mode 2x; Agents API hosts the Codex harness at no extra fee beyond tokens and tools
- ✓Cache reuse within a 30-minute window, 90% cached-read discount, effort changes no longer break the cache
Known Issues
- GPT-6.1 SOL ULTRAFAST REACHES THE API RATE CARD; COMPOSER PREDICTIONS BETA IN THE CODEX DESKTOP APP (rate card checked 2026-10-12; predictions 2026-10-09, vendor-primary): **(1) Ultrafast.** The API pricing page's Ultrafast table now lists **gpt-6.1-sol at $12.00 input / $0.60 cached input / $15.00 cache writes / $60.00 output per 1M tokens for short context (up to 272K input), and $24.00 / $1.20 / $30.00 / $90.00 above 272K**, beside gpt-6-astra at $60 / $6 / $75 / $300. That is exactly six times GPT-6.1 Sol's Standard rates, matching the Enterprise rate card's 6x Ultrafast multiplier. It closes the DevDay promise of GPT-6.1 Sol Ultrafast 'in the coming days'; the 10/05 sweep recorded the table as Astra-only, so the row landed between 10/06 and 10/12 -- the exact date is not published. **(2) Composer predictions (beta).** 'Suggests your next message based on the conversation in your current Codex thread'; Tab accepts, nothing sends automatically, and the composer may skip a prediction. **Eligibility: adults on personal ChatGPT Pro plans, in the Codex desktop app, in local and SSH threads, with GPT-6 Astra or GPT-6.1 Sol**; on by default (Settings > General > Composer > Show predictions); not in Chat, not on other plans, and in Work only for local threads. **During the beta, generating predictions does not count toward Codex usage limits or consume credits**; sent messages bill normally. Predictions use only the current thread's context and do not query memory or connected apps on their own.Source: developers.openai.com/api/docs/pricing.md (Ultrafast pricing data table, gpt-6.1-sol row) -- fetched 2026-10-12; OpenAI Help Center 'Composer predictions in Codex' (help.openai.com/en/articles/20001601, 'Updated: 2 days ago' on 2026-10-12) + ChatGPT release notes heading 'October 9, 2026' -- all fetched 2026-10-12 via curl with browser UA · 2026-10-09
- ATLASSIAN PARTNERSHIP EXPANDED -- GPT-6 MODELS POWER ROVO, 3,000+ ATLASSIAN DEVELOPERS ON CODEX, JIRA AND CONFLUENCE CONTEXT VIA CLI PLUGINS (2026-10-06, vendor-primary): OpenAI and Atlassian 'are expanding their partnership, bringing frontier models in the GPT-6 family across Atlassian's platform'. **Under a new agreement, OpenAI frontier models will power agents across Atlassian's platform and Rovo**, which pairs OpenAI models with Atlassian's Teamwork Graph ('an enterprise context layer that connects people, projects, documents, and decisions'); Atlassian gets 'expanded access to the latest OpenAI frontier models, including GPT-6 Astra and the GPT-5.6 series'. **Codex-specific facts:** 'More than 3,000 Atlassian developers use Codex across their terminals, IDEs, and code review workflows'; 'through the Atlassian and Teamwork Graph CLI plugins for ChatGPT and Codex, customers can connect ChatGPT and Codex to their existing workflows, giving AI access to relevant project information, documentation, and development context, subject to appropriate permissions'; and Atlassian's recent plugin extension 'brings Jira work items, Confluence content, and people directly into ChatGPT and Codex prompts', with a pinned Atlassian Home surfacing assigned work, recent Looms, projects and Bitbucket pull requests. **Roadmap, not shipped:** the companies 'are exploring deeper integrations with Jira that would make it easier for teams to assign work to AI agents, track progress, capture decisions, and review results', paired with DX (Atlassian's developer-productivity measurement platform) to measure AI's effect on development speed and cycle time. OpenAI says it will 'continue to rely on Jira' internally; the collaboration dates to 2023. No pricing or plan change -- this is distribution and context for Codex users on Atlassian stacks, and a direct answer to the Jira workflows GitHub Copilot and Cursor already pitch.Source: OpenAI (openai.com/index/atlassian-partnership/, publicationDateText 'October 6, 2026') -- fetched 2026-10-06 via curl with browser UA · 2026-10-06
- EU TEXT WATERMARK ON CODEX OUTPUT, OPT-IN WATERMARKING ON THE API, AND AN ENTERPRISE RATE CARD THAT NAMES THE CODE-REVIEW MODELS (2026-10-04/05, vendor-primary): **(1)** 'Our approach to EU text provenance rules' (10/05): 'Over the coming weeks, we will introduce text watermarking to eligible ChatGPT and Codex users across all plans in the EU only' -- so the watermark lands on Codex text output in the EU by default, and 'starting today, API customers around the world will be able to opt in to watermarked text outputs for select models' (off by default in the API; cloud partners to follow). The scheme, textGrain, is a statistical signal in word choice; OpenAI's own figures put detection at about 80% for 200-token and 95% for 400-token passages at a 1% false-positive rate, falling to 66% and 17% after 10% and 25% synonym edits, and 'substantially lower' for mathematics-style text. Astra at max effort scored within noise with the mark on (DeepSWE v1.1 72.80% vs 71.68%, Terminal-Bench 4.0 53.90% vs 56.06%). Detector access is limited to approved researchers. For code this is mostly a non-event in practice (identifiers and syntax leave little word-choice freedom, which is exactly the case OpenAI says detection is weakest), but EU teams with provenance or compliance questions should expect the default. **(2)** The Enterprise token rate card (help center, updated ~10/04) prices Codex for eligible token-based Enterprise agreements at the API Standard rates -- GPT-6 Astra $10 / $1 / $50, GPT-6.1 Sol $2 / $0.10 / $10, GPT-6 Sol $2 / $0.20 / $10, GPT-6 Luna $0.10 / $0.01 / $0.50, GPT-5.3-Codex $1.75 / $0.175 / $14 per 1M input / cached / output -- and states that **code review uses GPT-5.3-Codex and auto review uses GPT-5.6 Luna**, that charges cover 'local tasks, cloud tasks, automations, code review, auto review, and delegated workers', that **Codex does not charge for cache writes and GPT-6 Astra in Codex has no long-context multiplier above 272K**, that Fast mode is 2x and **GPT-6 Astra Ultrafast is 6x Standard** (8x against an included allowance), and that Codex Security Cloud's Daybreak Blue runs at GPT-5.6 Sol rates ($4 / $0.40 / $20) with Daybreak Red at $12.50 / $1.25 / $75. **(3) Still pending:** as of 10/05 the API pricing page's Ultrafast table lists only gpt-6-astra ($60 / $6 / $75 / $300); the GPT-6.1 Sol Ultrafast tier promised at DevDay 'in the coming days' has not appeared on the rate card.Source: OpenAI: Our approach to EU text provenance rules (openai.com/index/eu-text-provenance/, publicationDateText 'October 5, 2026') + OpenAI Help Center: ChatGPT Rate Card (Enterprise token-based pricing) (help.openai.com/en/articles/20001415, 'Updated: 20 hours ago' on 10/05) + developers.openai.com/api/docs/pricing.md (Ultrafast table, gpt-6-astra only) -- all fetched 2026-10-05 via curl with browser UA · 2026-10-05
- DEVDAY 2026 FOR CODEX: GPT-6.1 SOL, CODEX CLOUD, A VOICE-STEERED CLI, CODE REVIEW, SECURITY CLOUD, COMPUTER USE IN THE AGENTS API, AND AN ULTRAFAST TIER THAT ONLY PRO 500 AND ENTERPRISE GET (2026-09-29, vendor-primary): **(1) GPT-6.1 Sol** -- 'an upgrade to GPT-6 Sol that nearly matches GPT-6 Astra's intelligence on agentic coding, computer use, and professional work at one-fifth of Astra's standard input and output token prices'; on DeepSWE v1.1 it 'matches GPT-6 Astra at roughly one-fifth of the cost, while eclipsing GPT-6 Sol's best score by 6.4 percentage points at a lower reasoning effort and cost'. API id `gpt-6.1-sol`, **$2 / $0.10 cached / $2.50 cache writes / $10 per 1M** (pricing.md), 1,050,000 context, 128,000 max output, Apr 30 2026 cutoff; effort low to max with none and minimal unsupported; Responses API for tool calling. 'Available starting today to all Plus, Pro, Business, Enterprise, and Edu users in ChatGPT Work and Codex' (release note: starting with Pro, expanding to Plus, Business, Enterprise and Edu). **GPT-6.1 Sol Ultrafast** -- 'up to 8x faster token generation compared to its standard speed in Codex' -- is 'in the coming days'. **(2) Ultrafast as a tier** -- 'our premium speed tier for workloads where speed matters most', 'up to 8x faster token generation (300 tokens per second) in Codex and up to 6x in the API'; **GPT-6 Astra Ultrafast is live in the API at $60 / $6 / $75 / $300 per 1M and in ChatGPT Work and Codex on Pro 500 ($500/month) and Enterprise only** -- 'Buying credits on Pro 100 or Pro 200 does not unlock it.' **(3) Codex Cloud** -- 'start and continue coding tasks from desktop, web, or mobile using reusable environments with your project's repositories, tools, and dependencies. Each task gets its own isolated workspace, and tasks can continue while your computer is asleep'; managed workspaces apply their cloud-access settings; Plus, Pro, Business, Healthcare, Education and Enterprise. **(4) Refreshed Codex CLI** -- start and steer tasks by voice, a new /agents view to delegate and track multiple tasks, prompt editing, session resume, worktrees and a cleaner terminal UI; all plans. **(5) Code Review** -- read PR summaries and diffs, review findings and ask Codex about issues before commenting on GitHub pull requests or GitLab merge requests; 'with automatic reviews, Codex can also take a first pass in the cloud while you're away'; all plans via the Code Review plugin. **(6) Codex Security Cloud** -- scan GitHub repositories on demand or on a schedule with ongoing checks of new commits; Codex investigates findings, removes duplicates and prepares fixes in the cloud; **'includes access to models offered through Daybreak Blue without a separate Daybreak application'** (the release note phrases it as Daybreak Blue models 'only within Codex Security Cloud'); Pro, Business, Enterprise and Edu; existing Codex Security customers opt in before paid usage. **(7) Agents API with computer use** -- the Agents API 'now supports computer use so developers can build agents that interact with software', and brings Codex's multi-agent, tool search, tool calling and context compaction into your app; available through the API and in Codex and ChatGPT Work on Pro 500 and Enterprise. **Bedrock Managed Agents, powered by OpenAI**, runs the same core in AWS. **(8) Decisions API** -- Luna focused on user-defined questions with finite answers for classification, routing and next-action choice; limited preview, broad release 'in the coming days'. **(9) VS Code cross-over (GitHub changelog, 10/01):** 'Pick up a Codex conversation from the ChatGPT app in VS Code' and open the PR form from a Copilot, Claude or Codex agent session in the Agents window. **(10) Deprecation (10/01):** `gpt-5.3-codex` is deprecated and 'will be removed from the API on April 1, 2027' with gpt-6-sol as the replacement.Source: OpenAI (openai.com/index/introducing-gpt-6-1-sol/ and openai.com/index/devday-2026-recap/, both publicationDateText 'September 29, 2026') + developers.openai.com/api/docs/pricing.md (Standard + Ultrafast tables) + developers.openai.com/api/docs/models/gpt-6.1-sol.md + help.openai.com ChatGPT release notes 'September 29, 2026' + platform.openai.com/docs/deprecations.md ('2026-10-01: GPT-5.3-Codex, GPT-5.1, GPT-5.4-Nano') + github.blog/changelog/2026-10-01-github-copilot-in-vs-code-september-2026-releases/ -- all fetched 2026-10-02 via curl with browser UA · 2026-09-29
- GPT-6 SOL AND LUNA IN CODEX FROM LAUNCH DAY -- HALF-PRICE API TIERS, 1.05M CONTEXT, AND A CACHE THAT SURVIVES EFFORT CHANGES (2026-09-22, vendor-primary): OpenAI's launch post says GPT-6 Sol and Luna 'are available in ChatGPT Work and **Codex** starting today for all Plus, Pro, Business, Enterprise, and Edu users. Free and Go users can access GPT-6 Luna in the desktop app'; the ChatGPT release note for the same day adds that 'Codex desktop keeps the model you selected manually' and that 'available models and reasoning effort options depend on your plan and workspace settings'. **API pricing (developers.openai.com pricing.md):** `gpt-6-sol` **$2 / $10** per 1M (cached $0.20, cache writes $2.50; above 272K input the whole request bills 2x input and 1.5x output), `gpt-6-luna` **$0.10 / $0.50** (cached $0.01) -- 'reducing API prices for Sol and Luna by 50% compared with their GPT-5.6 promotional pricing'; Batch/Flex half, Fast mode double. Model pages: 1,050,000 context, 922,000 max input, 128,000 max output, reasoning tokens, image input, structured outputs; Sol cutoff Apr 20 2026, Luna May 18 2026. **Coding claims (OpenAI's numbers, competitor scores from public reports):** DeepSWE v1.1 -- **Sol (max) 68.8%**, 'within 1.1 percentage points of Claude Fable 5's highest score' (69.9%) at ~80% lower cost per task; **Luna (max) 66.6%**, 'comparable to Claude Opus 5 and Fable 5 at medium effort' at 93-96% less per task; FrontierCode 1.1 -- Sol 'improves substantially over GPT-5.6 Sol' and matches Fable 5.1 xhigh at much lower cost (Anthropic's 9/28 table gives Sol 52.1% at xhigh vs Sonnet 5.5's 49.3% and Opus 5.5's 54.4%). OpenAI also disclosed internal usage: daily token spend at API prices 'has exceeded $600 for the median researcher and $7,000 for researchers at the 90th percentile'. **Prompt caching rebuilt for GPT-6:** discounts for eligible shared prefixes reused within a 30-minute window, 90% off cached input, a Prompt Caching Dashboard, a diagnostics tool that names the miss reason and affected tokens, explicit cache breakpoints, reasoning-effort changes via `configuration_update` that preserve the cache, `allowed_tools` / `tool_choice: none` instead of deleting tool definitions, and prewarming -- GitHub reports more than 50% fewer prompt tokens needing fresh processing across billions of Copilot requests. Cross-vendor context: the same week Anthropic shipped Opus 5.5 (9/22, $4/$20) and Sonnet 5.5 (9/28, $2/$10), so the $2/$10 Sol vs Sonnet 5.5 comparison is now the live one for agentic coding spend.Source: OpenAI (openai.com/index/introducing-gpt-6-sol-and-luna/ + openai.com/index/better-prompt-caching-for-gpt-6/, both publicationDateText 'September 22, 2026') + developers.openai.com/api/docs/pricing.md + models/gpt-6-sol.md + models/gpt-6-luna.md + help.openai.com release notes ('September 22, 2026') -- fetched 2026-09-28 via curl with browser UA · 2026-09-22
- THE AGENTS API -- CODEX'S HARNESS BECOMES A HOSTED PRODUCT, IN PUBLIC BETA, WITH NO SURCHARGE (2026-09-10, vendor-primary): OpenAI introduced the **Agents API** in public beta, 'bringing that same harness and infrastructure that powers Codex to developers through a simple, flexible API.' **What you get in one call** (`client.beta.agents.sessions.create`): a model (the example is `gpt-6-astra`), tools (MCP servers, custom functions, built-ins like web search), a `multi_agent` block with `max_concurrent_subagents`, secrets via `vault_ids`, and an `environment` -- either **`openai_hosted`** (a new OpenAI-managed sandbox on 'the same sandboxing infrastructure that powers Codex and ChatGPT', configurable with files, packages, skills and plugins) or your own infrastructure or a partner sandbox. **Named sandbox partners:** Blaxel, Cloudflare, Daytona, DigitalOcean, E2B, Modal, Oracle, Runloop, Vercel. **Harness features OpenAI calls out as maintained for you:** automatic **context compaction** as a session nears its window, **tool search** (loads tool definitions on demand to save tokens and preserve cache), **programmatic tool calling** (parallel calls, chaining and in-code filtering so only relevant results re-enter context), and **subagents** with their own context. OpenAI says the harness is 'versioned' and improved with each model launch, so you inherit upgrades without rewriting scaffolding; it is 'powered by the open-source Codex harness', so the coordinating logic is inspectable. **PRICING: 'There are no additional fees for using the Agents API -- you simply pay for the tokens and tools your agents use.'** That is the notable commercial decision: OpenAI is not charging for orchestration or the hosted sandbox line item at beta, which undercuts the agent-infrastructure vendors it is simultaneously partnering with. **CUSTOMER CLAIMS (vendor-selected, unverified):** Ciridae eval score 0.71 -> 0.85 and 4x latency reduction on subagent flows; SafetyKit 60% lower cost per case; Hypha 86% fewer failed agent responses; Nash running 'thousands of long-running AI agents' on it. **HOW TO READ IT ON THIS PAGE:** Codex the product (CLI, IDE, cloud, app) is unchanged; what changed is that its runtime is now a platform primitive, which is the clearest statement yet of where OpenAI thinks the moat is -- the harness and infrastructure rather than the model alone. Beta means the API surface can change before GA; OpenAI says it will 'iterate quickly' on feedback.Source: OpenAI (openai.com/index/introducing-the-agents-api/, publicationDateText 'September 10, 2026'; no 'Originally published on' block) -- fetched 2026-09-14 via curl with browser UA · 2026-09-10
- THE CODEX HARNESS WAS REWRITTEN ALONGSIDE GPT-6 ASTRA -- 1.9x FASTER TASK COMPLETION, AND THE SPEED GAIN IS NOT ALL FROM THE MODEL (2026-09-03, vendor-primary): OpenAI shipped **GPT-6 Astra** and states in the launch post: '**Alongside Astra, we are also updating the Codex harness to significantly improve the speed of computer use. Combined with Astra's efficiency, this translates to a 1.9x faster task completion compared to the current GPT-5.6 Sol experience, on the Mind2Web benchmark.**' **Read the attribution carefully, because it is doing work: the 1.9x is the combination of a harness change and a model change, not a model benchmark.** OpenAI separately reports that on OSWorld 2.0 latency simulations Astra scores **72.6% at roughly 40 minutes per task** versus Sol's **65.7% at roughly 75 minutes** -- about **47% less time** -- so the model is genuinely faster on computer use, but the Codex-specific figure bundles the harness update in. **WHAT THIS MEANS IF YOU RUN CODEX:** the harness improvement lands for everyone on the Codex surface, and Astra reaches Plus, Pro, Business and Enterprise within existing subscription allowances as the staged rollout completes. Astra is API-addressable as `gpt-6-astra` at **$10/$50 per 1M short-context** ($20/$75 long-context, Batch $5/$25, Fast mode 2x) -- **2.5x the price of GPT-5.6 Sol at $4/$20**, which is the trade to weigh for high-volume agent runs where Sol was already adequate. **CONTEXT WITH THIS WINDOW'S OTHER CODEX CHANGE:** GPT-5.4 and GPT-5.4-mini left the Codex surface on 2026-08-31 as scheduled, so within four days the Codex model list lost its two oldest entries and gained OpenAI's most expensive one.Source: OpenAI (openai.com/index/gpt-6-astra/, publicationDateText 'September 3, 2026') + platform.openai.com/docs/pricing.md -- fetched 2026-09-05 via curl with browser UA · 2026-09-03
- TODAY IS THE DAY: GPT-5.4 AND GPT-5.4-MINI RETIRE FROM CODEX (2026-08-31 -- re-verified on the vendor doc this morning, still scheduled, not slipped): the deprecation announced back on 2026-04-22 reaches its date today. OpenAI's Codex models documentation still states it in the future tense as of this check -- '**GPT-5.4 and GPT-5.4 mini retire from Codex on August 31, 2026**' -- so the retirement is proceeding on schedule rather than being quietly deferred, which is worth confirming because OpenAI has let doc pages for retired models linger before. **THE MIGRATION, VERBATIM FROM THE VENDOR:** 'If you sign in with ChatGPT, replace `gpt-5.4` with `gpt-5.6-terra` and `gpt-5.4-mini` with `gpt-5.6-luna` in **saved configurations, custom agents, and scheduled tasks**.' Those three surfaces are the ones that break silently -- a `model = "gpt-5.4"` line in a `config.toml`, a custom agent definition, or a nightly `codex exec --model gpt-5.4` job will not warn you in advance. **THE SCOPE LIMIT THAT MOST COVERAGE GETS WRONG, AND THE VENDOR IS EXPLICIT ABOUT IT:** '**The OpenAI API and Codex authenticated with your own API key aren't affected.**' This is specifically **Codex with ChatGPT sign-in**. If you drive Codex with your own API key, nothing changes for you today. **Corroborating detail: `gpt-5.4` does not appear anywhere in OpenAI's API deprecations ledger** -- checked the same session -- which is consistent with this being a Codex-surface retirement rather than an API model shutdown, and is a useful reminder that the two ledgers are separate and you have to read both. Current recommended Codex set remains **GPT-5.6 Sol / Terra / Luna**, with Sol the only one available in Codex cloud.Source: OpenAI (developers.openai.com/codex/models.md, 'Other models' section) -- fetched 2026-08-31; cross-checked against platform.openai.com/docs/deprecations.md the same session, which contains no gpt-5.4 row · 2026-08-31
- THE ADMIN PLUGIN COVERS CODEX, NOT JUST CHATGPT WORK (2026-08-25, vendor-primary): OpenAI's new **Admin plugin ships for ChatGPT Work *and* Codex**, so Codex workspaces get the same conversational administration surface: **review Codex activity and credit usage**, spot members or groups approaching credit limits, manage members and groups, control **feature or model access by role or group**, and approve or deny **usage-limit and spending requests** in context. Recurring checks can be automated and routed into Slack or Microsoft Teams for approval. **For Codex specifically the credit-usage angle is the relevant one** -- Codex consumption is the line item enterprises actually watch, and this puts limit adjustment and spend approval in the same conversation as the usage data. OpenAI notes its own IT team runs ChatGPT Work and Codex this way. **Same caveat as on the ChatGPT Work page: this grants an LLM authority to change permissions and approve spend, and the announcement describes no independent audit or rollback mechanism.**Source: OpenAI (openai.com/index/introducing-admin-plugin/, publicationDateText 'August 25, 2026') -- fetched 2026-08-28 via curl with browser UA · 2026-08-25
- THE ASSISTANTS API IS NOW ACTUALLY DEAD -- SUNSET EXECUTED 2026-08-26, CONFIRMED PAST-TENSE ON OPENAI'S OWN DEPRECATIONS PAGE (2026-08-26, vendor-primary): OpenAI's deprecations documentation now reads, in the past tense, '**The Assistants API was officially sunset on August 26, 2026, following its deprecation announcement on August 26, 2025**' -- exactly twelve months' notice, honoured to the day. **Replacements are the Responses API and the Conversations API**, with an Assistants-to-Conversations migration guide. This closes a dated watch we had been carrying: the retirement was scheduled, and unlike some vendor deadlines this one executed on time rather than slipping. **Why it belongs on this page: anyone still running an Assistants-API integration has a broken product today, not a deprecation warning** -- and the migration is not cosmetic, because Responses/Conversations split what Assistants did into two primitives. **Method note for future sweeps: the machine-readable source is platform.openai.com/docs/deprecations.md (the developers.openai.com/api/deprecations.md path 404s and returns a 440KB HTML shell that greps as a false negative).**Source: OpenAI (platform.openai.com/docs/deprecations, fetched as .md -- verbatim: 'The Assistants API was officially sunset on August 26, 2026'; deprecation table row '2026-08-26 | Assistants API | Responses API and Conversations API') -- fetched 2026-08-28 via curl · 2026-08-26
- MODEL RETIREMENT WAVE EXECUTED 2026-07-23 -- AND GPT-5.4 LEAVES CODEX ON 2026-08-31 (announced 2026-04-22, vendor deprecation ledger): OpenAI shut down **18 model IDs across 15 ledger rows**. The Codex-branded ones all went in one sweep: **`gpt-5-codex`, `gpt-5.1-codex`, `gpt-5.1-codex-max`, `gpt-5.1-codex-mini` and `gpt-5.2-codex`** -- substituted by `gpt-5.6-sol`, except `gpt-5.1-codex-mini` which maps to `gpt-5.6-terra`. Also retired: `gpt-5-chat-latest`, `gpt-5.1-chat-latest`, `computer-use-preview`, `o3-deep-research`, `o4-mini-deep-research`. **TWO MORE CODEX DEPRECATIONS ARE LIVE RIGHT NOW:** `gpt-5.2` and `gpt-5.3-codex` are already deprecated for ChatGPT sign-in, and **`gpt-5.4` + `gpt-5.4-mini` retire from Codex on 2026-08-31** (migrate to `gpt-5.6-terra` and `gpt-5.6-luna` respectively). If you have `model = "gpt-5.4"` in a config.toml, a custom agent, a scheduled task, or a `codex exec --model` script, you have until the end of August. **The OpenAI API and Codex authenticated with your own API key are not affected by the GPT-5.4 retirement** -- this is specifically Codex with ChatGPT sign-in. Current recommended set is **GPT-5.6 Sol / Terra / Luna**, with Sol the only one available in Codex cloud, plus **GPT-5.3-Codex-Spark** as a Pro-only text-only research preview for near-instant iteration. DATA-HYGIENE WARNING: OpenAI's own models index still serves live doc pages for several retired IDs with no retirement banner -- do not treat presence in the docs as evidence a model is callableSource: OpenAI deprecations ledger (developers.openai.com/api/docs/deprecations), OpenAI Codex models doc (developers.openai.com/codex/models) · 2026-07-23
- APP MERGER + GPT-5.6 (2026-07-09): The **standalone Codex app is merging into the new unified ChatGPT desktop app** (Mac/Windows) -- update the Codex app and it becomes the ChatGPT app with Chat, Work, and Codex surfaces; developers can set Codex as the default view and keep the Codex icon; desktop Codex projects are accessible from the ChatGPT mobile app; the old ChatGPT desktop app is renamed 'ChatGPT Classic.' Codex itself gains: **inline editing within diffs, PR review in the side panel, faster computer use (powered by GPT-5.6), and multi-repo projects**. Model lineup: **GPT-5.6 GA in Codex same day** -- Free/Go get Terra; Plus+ pick Sol/Terra/Luna with per-model effort; `max` toggleable for all GPT-5.6 users; **`ultra` (4 parallel agents) available from Plus up in Codex**. Scale disclosure: 5M+ weekly Codex users, 1M+ using it for non-development work. Net read: Codex stops being a separate app and becomes the engine inside ChatGPT's agent stack (ChatGPT Work is built on Codex technology -- see /tools/chatgpt-work)Source: OpenAI (openai.com/index/chatgpt-for-your-most-ambitious-work/), OpenAI (openai.com/index/gpt-5-6/) · 2026-07-09
- FEATURE CLUSTER (May-June 2026, all vendor changelog): **5/14 Codex in the ChatGPT mobile app** (iOS/Android) -- monitor and drive Codex sessions from your phone by connecting to a Mac running the Codex app (remote control, not standalone mobile execution). **5/21 Goal mode GA** -- out of experimental, available in Codex app + IDE extension + CLI. **5/29 Computer Use on Windows** + remote control of Windows devices. **6/1 Amazon Bedrock support** -- Codex can use supported OpenAI models through Bedrock. **6/2 Sites preview** -- create AND deploy websites/web apps to OpenAI-hosted infrastructure from inside Codex. The Sites ship is the notable one: Codex now competes directly with Lovable/Bolt/v0 on the build-and-host loop, not just the code-generation stepSource: OpenAI Codex changelog (developers.openai.com/codex/changelog) · 2026-06-02
- GPT-5.2-Codex shipped 2026-04-23 as a coding-specialized variant separate from the consumer GPT-5.5 launch. Available to all paid ChatGPT users across Codex web/CLI/IDE surfaces today; API access in coming weeks. Posts SOTA on SWE-Bench Pro and Terminal-Bench 2.0. Improvements: long-horizon agentic coding via context compaction, large refactors and migrations, Windows env perf, and cybersecurity. Direct upgrade over GPT-5.3-Codex for serious agentic work -- if you're on Plus or Pro, your Codex defaults are already on the new modelSource: OpenAI: Introducing GPT-5.2-Codex (openai.com/index/introducing-gpt-5-2-codex/), OpenAI Codex changelog · 2026-04-23
- Codex Chronicle launched 2026-04-20/21 as an opt-in research preview for ChatGPT Pro on macOS only (NOT available in EU/UK/Switzerland). Captures screen content + builds persistent memories so Codex understands what you're working on without manual context-restating. Privacy details: screenshots stored locally in $TMPDIR/chronicle/screen_recording/ auto-deleted after 6 hours; generated memories live unencrypted as markdown at ~/.codex/memories_extensions/chronicle/; OpenAI servers don't retain processed screenshots and don't train on them. OpenAI explicitly flags 'increased prompt-injection attack surface from screen content' -- pause Chronicle before meetings or sensitive material. Currently consumes rate limits aggressively. Closest comparison is Microsoft Recall but with stronger local-storage guaranteesSource: OpenAI Chronicle docs (developers.openai.com/codex/memories/chronicle), Help Net Security, 9to5Mac · 2026-04
- Security vulnerability discovered where branch parameter allowed shell command injection during environment setup -- fixed by OpenAI with improved input validationSource: BeyondTrust Phantom Labs, TechRadar · 2026-03
- CLI was macOS-only at launch, frustrating Windows and Linux users -- broader platform support now rolling outSource: Reddit r/openai, GitHub issues · 2026-04
- Code quality for complex tasks often needs significant human review before merging -- better at code review than code writing according to developer feedbackSource: Hacker News, Reddit r/programming · 2026-04
- 2026-04-16 Codex 'super app' update is substantially bigger than the initial Mac-app control headline suggested. Full feature set per OpenAI: (1) macOS computer-use agent that opens apps, clicks, and types with its own cursor in background while you use your machine, (2) image generation via gpt-image-1.5 INSIDE Codex, (3) persistent memory + user preferences across sessions, (4) in-app browser built on the Atlas browser stack, (5) 90+ new plugins combining skills, app integrations, and MCP servers. OpenAI also disclosed 3M weekly Codex users with 70% month-over-month growth. Windows / Linux computer-use support still pending. Not available in EEA, UK, or SwitzerlandSource: BigGo Finance, gHacks, Blockchain News, OpenAI release notes · 2026-04
Best for
Developers already paying for ChatGPT Plus who want a coding agent at no extra cost. Especially good for parallel task execution -- assign multiple bug fixes or feature branches and let Codex work them simultaneously.
Not for
Developers who need fine-grained control mid-task (use Claude Code or Cursor instead). Also not ideal for complex architectural refactors where the AI needs human guidance throughout the process.
Our Verdict
Codex is OpenAI's answer to Claude Code and Devin, and it has one killer advantage: it's bundled with ChatGPT Plus. If you're already paying $20/mo for ChatGPT, you get a cloud coding agent for free. The parallel task execution is genuinely unique -- no other coding agent lets you fire off 5 tasks and check back later. But the rough edges are real: you can't steer it mid-task, complex refactors fall flat, and the usage limits feel tight. For straightforward coding tasks and code review, it's excellent. For anything nuanced, Claude Code's interactive approach is still better.
Sources
- OpenAI API pricing -- Ultrafast table now lists gpt-6.1-sol ($12/$0.60/$15/$60 short context) (accessed 2026-10-12)
- OpenAI Help Center: Composer predictions in Codex (beta, 2026-10-09) (accessed 2026-10-12)
- OpenAI: Atlassian and OpenAI expand partnership -- GPT-6 models across Atlassian and Rovo, 3,000+ Atlassian developers on Codex, Teamwork Graph CLI plugins (2026-10-06) (accessed 2026-10-06)
- OpenAI: Our approach to EU text provenance rules (2026-10-05) -- textGrain watermark on EU Codex output, API opt-in for select models (accessed 2026-10-05)
- OpenAI Help Center: ChatGPT Rate Card (Enterprise token-based pricing) -- Codex per-token rates, code review on GPT-5.3-Codex, auto review on GPT-5.6 Luna, no cache-write charge, Ultrafast 6x (fetched 2026-10-05) (accessed 2026-10-05)
- OpenAI API pricing (pricing.md) re-checked 2026-10-05 -- Ultrafast table still gpt-6-astra only; no GPT-6.1 Sol Ultrafast row (accessed 2026-10-05)
- OpenAI: Introducing GPT-6.1 Sol (2026-09-29) -- in Codex and the API at $2/$0.10/$10; Ultrafast coming (accessed 2026-10-02)
- OpenAI: DevDay 2026 Recap (2026-09-29) -- Codex Cloud, CLI refresh, Code Review, Codex Security Cloud, Agents API computer use, Decisions API, Ultrafast tier (accessed 2026-10-02)
- OpenAI API pricing (gpt-6.1-sol row; Ultrafast gpt-6-astra $60/$300) -- fetched 2026-10-02 (accessed 2026-10-02)
- OpenAI: GPT-6.1 Sol model page (accessed 2026-10-02)
- OpenAI deprecations: gpt-5.3-codex removed 2027-04-01 (announced 2026-10-01) (accessed 2026-10-02)
- OpenAI: Introducing GPT-6 Sol and Luna (2026-09-22) -- in Codex day one, $2/$10 and $0.10/$0.50, DeepSWE 68.8% / 66.6% (accessed 2026-09-28)
- OpenAI: Better prompt caching for GPT-6 (2026-09-22) -- 30-minute window, diagnostics, effort changes preserve cache (accessed 2026-09-28)
- OpenAI API docs: Pricing -- gpt-6-sol / gpt-6-luna rows (fetched 2026-09-28) (accessed 2026-09-28)
- OpenAI API docs: GPT-6 Luna model page -- 1,050,000 context, 128,000 max output, May 18 2026 cutoff (fetched 2026-09-28) (accessed 2026-09-28)
- OpenAI Help Center: ChatGPT release notes 'September 22, 2026' -- GPT-6 Sol and Luna in Work and Codex; Codex desktop keeps the manually selected model (accessed 2026-09-28)
- OpenAI: Introducing the Agents API -- public beta, Codex harness as a hosted API, OpenAI-hosted sandbox, partner environments, no additional fees (2026-09-10) (accessed 2026-09-14)
- OpenAI: GPT-6 Astra launch -- Codex harness updated, 1.9x faster task completion on Mind2Web (2026-09-03) (accessed 2026-09-05)
- OpenAI API pricing doc: gpt-6-astra $10/$50 short context vs gpt-5.6-sol $4/$20 (verified 2026-09-05) (accessed 2026-09-05)
- OpenAI Codex models doc: GPT-5.4 and GPT-5.4 mini retire from Codex on August 31, 2026 -- ChatGPT sign-in only, API unaffected (re-verified 2026-08-31) (accessed 2026-08-31)
- OpenAI: Introducing the Admin plugin for ChatGPT Work and Codex (2026-08-25) (accessed 2026-08-28)
- OpenAI: API deprecations -- Assistants API sunset 2026-08-26 (accessed 2026-08-28)
- OpenAI: ChatGPT Work + desktop app merger (2026-07-09) (accessed 2026-07-09)
- OpenAI: GPT-5.6 GA (Codex availability matrix) (accessed 2026-07-09)
- OpenAI: Introducing GPT-5.2-Codex (2026-04-23) (accessed 2026-04-25)
- OpenAI Codex changelog (accessed 2026-04-25)
- OpenAI Chronicle docs (Apr 2026) (accessed 2026-04-22)
- Help Net Security: Chronicle screen-context memories (accessed 2026-04-22)
- OpenAI official Codex page (accessed 2026-04-17)
- developers.openai.com/codex/pricing (accessed 2026-04-17)
- VentureBeat: Codex Mac-app control + GPT-Rosalind launch 2026-04-16 (accessed 2026-04-17)
- Reddit r/openai, r/programming (accessed 2026-04-17)
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Alternatives to Codex (OpenAI)
GitHub Copilot
**Oct 15: @GitHub in Slack and Microsoft Teams now works across multiple repositories in a single conversation (issues, pull requests, bug investigations), can be mentioned anywhere in a message, and can use shared Slack messages and threads as context.** **Gemini 4 Argon joined Copilot on 2026-10-13, the day Google made it GA, for Pro+, Max, Business and Enterprise at provider list price; on 10/15 GitHub scheduled Claude Opus 4.8, Claude Opus 5 and GPT-5.6 Terra for removal from every Copilot surface on 2026-11-16 (Opus 4.8 stays for individual annual subscribers), and HydraFusion gained a Max option and a pool of Opus 5.5, GPT-6 Astra, GPT-6.1 Sol and GPT-6 Luna (10/14).** **Claude Haiku 5.5 joined Copilot on 2026-10-07, the day Anthropic launched it, for Pro, Pro+, Max, Business and Enterprise at provider list price; the same day local sandboxing went GA in Copilot CLI, the Copilot app and VS Code Agent Host at no extra cost, the CLI learned to discover local Ollama models, and GitHub announced a purpose-built secret-detection model whose new push-protection and /security-review checks will draw AI Credits.** **GPT-6.1 Sol landed in Copilot on OpenAI's launch day (2026-09-29, Pro+/Max/Business/Enterprise), the fifth day-one frontier add in eight days, and on 2026-10-02 the four-model retirement slate executed on schedule: Gemini 3.5 Flash, Gemini 3.6 Flash, Kimi K2.7 Code and Claude Opus 4.7 are gone from every Copilot surface.** Same week: HydraFusion's multi-model orchestration reached VS Code 1.140 and the Copilot app (9/30), **computer use** let Copilot CLI and the Copilot app drive desktop applications on macOS and Windows in public preview (10/01), dynamic workflows defined in code arrived for CLI, app and SDK (10/01), the September VS Code roundup added automations, agent merge and Dev Container sessions (10/01), and Copilot code review gained REST/GraphQL request support with Balanced as the default effort level (10/02). Still ahead: the six-model slate on 10/19 and the 10/22 default policy for new features for Business and Enterprise. The 9/22 and 9/28 adds (Opus 5.5, GPT-6 Sol/Luna, Sonnet 5.5) all stand, metered at provider list pricing.
Cursor
**Oct 16: cloud agents can now build interactive canvases and share them by link, the Environments API entered beta for creating and managing agent environments in code, and cloud agent environments hold up to 300 repositories with large environments loading 5x faster.** **Cursor's own plans closed to new customers on 2026-10-12: Cursor is now sold through The X Subscription (Free, Plus $8, Premium $30, Super $100, Ultra $200) with one usage pool shared with Grok, at least twice the coding usage on SpaceXAI's models -- but Claude, GPT and Gemini are no longer in the allowance, billed at API list price on Premium and up and unavailable on Plus. On 2026-10-06 the Cursor iOS app gained remote control of local agents.** **Cursor launched two bots for the last mile of shipping code on 2026-09-23 (Teams and Enterprise): Rollouts, which attaches a monitor to every pull request and watches the change as it deploys per environment -- verified healthy, regression detected, or inconclusive -- and Security Review, which posts one comment per PR reporting exploitable bugs with severity, attack path and a proposed fix.** Rollouts is the Cursor rebuild of Firetiger's Change Monitors on the Bot Development Kit; it can open a revert PR or hand a regression to a cloud agent but does not merge or roll back on its own. Models: Anthropic's 9/28 Sonnet 5.5 post quotes SpaceXAI's Sualeh Asif on CursorBench 4.0 -- Sonnet 5.5 at 55.5% 'second only to Opus 5.5' (57.8%); Grok 4.7 and its Cursor-only Fast variant arrived 9/21. **Cursor Projects (9/10, beta)** and the 11/12 OpenAI shutoff watch continue.
Devin Desktop (formerly Windsurf)
Windsurf is now **Devin Desktop** -- Cognition retired the Windsurf brand via OTA update on June 2, 2026. Same editor, plans, pricing, settings, and extensions; the bundled agent is now 'Devin Local' and Devin Cloud agent access starts on the $20 Pro plan. Agent Command Center, Spaces, and Devin Review all carry over
Tabnine
**Tabnine was acquired by Tricentis on 2026-07-30 and is being folded into the Tricentis Agentic Quality Engineering Platform as its Enterprise Context Engine; tabnine.com now redirects to tricentis.com and the public price list is gone, though the VS Code extension (v3.335.0, about 9.6M installs) and the docs are still live.** Privacy-first AI code completion with on-premise deployment -- now a testing-company asset rather than a standalone Copilot rival.
Claude Code
**2.1.302 (2026-10-16) added CLAUDE_CODE_AUTO_MODE_MODEL to choose the model behind the client-side auto-mode classifier, an Idle compaction on/off row in /config, and a notice in /design-sync and /design-login that standalone Claude Design (claude.ai/design) closes by 2026-12-14; it also fixed file writes on exFAT/FAT32 drives on Windows and stopped prompt suggestions spending credits.** **2.1.299 (2026-10-14) added idle compaction -- a 200K+ token conversation left idle about 54 minutes is compacted before its one-hour prompt cache expires -- plus /effort and /fast defaults in agent view and /usage warnings for max effort and large tool results; 2.1.300 (10/14) brought /advisor to Claude Platform on AWS; 2.1.301 (10/15) lets unattended retry mode give up on far-off usage-limit resets and makes the fable alias fall back to the previous Fable model.** **Claude Haiku 5.5 became the default Haiku in 2.1.293 (2026-10-07) at $0.10 / $0.50 per 1M below 100K tokens; 2.1.295 (10/08) added onFailure block for hooks, OSC 7501 terminal status, per-upstream model lists on the Claude apps gateway and a 16,384-character limit on tool-search MCP descriptions, and 2.1.296 (10/09) added an allow_large Read option, per-subagent autoCompactWindow and a code policy key for Claude Desktop's Code tab.** **Three releases in two days -- 2.1.290 (2026-10-05), 2.1.291 and 2.1.292 (both 10/06): claude attach and claude logs by session name, a /claude-api managed-agents-onboard command, an effort parameter on the Agent tool, --marketplace on claude plugin install, a configurable 529 retry delay, WebFetch continuation past 100,000 characters, local MCP servers defaulting to protocol 2026-07-28, and a long run of security fixes for symlink and UNC-path reads; no model or pricing changes.** Anthropic's terminal-based coding agent that reads your whole repo and makes real changes -- not just suggestions. **Claude Opus 5.5 became the default Opus model in 2.1.280 (2026-09-22) and Claude Sonnet 5.5 the default Sonnet in 2.1.284 (2026-09-28)**: Opus 5.5 at $4/$20 with $0.20 cache reads and fast mode at $8/$40 for up to 2.5x speed, Sonnet 5.5 at an unchanged $2/$10 with far fewer tokens per task. Both are 1M context. Fable 5.1 (2026-09-01) remains the top model and still defaults to High effort in Claude Code specifically. **Four more releases 9/29-10/02 (2.1.285-2.1.288) added Claude Mods (plugins that modify deeper behaviour) with a built-in 'You should know' side agent, `claude --desktop` to hand a session to the desktop app, an `allowedProviders` managed setting, a WebFetch kill switch, `--max-findings` on /code-review, and continuation from partial responses when the API times out mid-turn.** Also since 9/22: `/doctor prompt-audit`, `deniedModels`, dollar amounts on spend limits and `attribution: false`.
Lovable
**Lovable launched Growth tools on 2026-10-14: set a goal such as your first 100 signups and it builds a plan from your app and traffic, prepares SEO, listings and creative, and launches Google, YouTube, Facebook and Instagram ad campaigns you approve, with no extra Lovable fee. Same week: Sign in with Lovable for any website, 60-day restore for deleted projects, Gemini 4 Argon (10/13) and GPT-6.1 Sol (10/15) for app AI features, and Enterprise audit-log export to SIEMs.** **Lovable shipped credit usage limits and alerts for workspaces (10/07), invite-only publishing on Free and Pro (10/08), nine new app connectors plus a Loom chat connector, Drizzle migration files for Cloud database changes, chat-to-chat task handoff and Enterprise workspace publishing domains (10/09).** Describe the app you want in plain English and watch it build itself. **New this week: apps built on Lovable can generate music with Google's Lyria 3 Clip Preview (about 30-second clips) and Lyria 3 Pro Preview (tracks up to 184 seconds) from a prompt or an image (2026-10-05, credits charged per finished track), beehiiv and Ramp connectors arrived, Lovable can restore its own work after a Git push overwrites it, and GitHub secret scanning now detects leaked Lovable API keys (10/05). Earlier: live voice conversations through GPT Live (2026-10-01, TanStack Start apps, uses credits), Enterprise workspaces can pin AI processing to EU providers (10/01, costs more credits), Business and Enterprise API keys can be IP-allowlisted (10/01), Lovable can rotate a Cloud database password from chat (9/30), and the Lovable MCP server works inside Muse by Meta (9/29).** **Chat with Lovable (2026-09-21)** adds a free daily chat allowance for thinking, asking and planning without changing code, plus voice conversations and a Telegram surface; apps built on Lovable can now call **Claude Opus 5.5 (9/23)** and **GPT-6 Sol and Luna (9/25)** for their own AI features, and the **Lovable API (9/17)** automates workspaces. $500M ARR (June 2026) and ~1M new projects a week
Devin
**Oct 16 release notes: /devin review and /devin prompts now work on GitLab merge requests, Devin Review shows Bitbucket Cloud merge readiness, Devin gained built-in git tools for issues, labels, assignees and branch protection plus PR search across GitHub, GitLab, Azure DevOps, Gerrit and Perforce Swarm, and queued messages stay editable while Devin is idle.** **Devin now has memory: the 2026-10-09 release notes add personal memory across sessions with a nightly 'dreaming' pass that refines what it keeps (admins can force it on or off), cut the session resume window from 30 to 14 days, load a repository's AGENTS.md on setup and open Devin Ultra to zero-data-retention enterprises; 10/07 added a notification inbox. Anthropic's Haiku 5.5 launch lists it as a Devin Fusion sidekick option.** **10/02 and 10/05 release notes: a Terminal tab in the session workspace, keyboard shortcuts and a command palette for everyone, Devin Review effort levels set per trigger with an enterprise default, single-code-scan fetch via API and MCP, Azure DevOps review summaries posted as closed threads, Perforce snapshot builds given three hours, and Microsoft Teams access settings now enforced.** **9/30 release notes: Devin Review now routes findings on a Devin-opened PR back to the session to fix first (only what it cannot fix gets posted), automations gain preflight scripts, and dropped-connection messages are no longer lost.** **Cognition crossed a one billion dollar run rate on 2026-09-25** -- '$1B in annualized revenue run rate', less than two years after Devin's GA, naming GE Aerospace, Rivian, Rohlik and Exa -- and opened a Sao Paulo hub on 9/22 with Itau (over 75% of its technology teams on Devin, 300,000+ repositories documented, .NET-to-Java migrations 6x faster), Nubank (a multi-million-line monolith migration 'from years to weeks' at over 20x lower cost), Santander, Natura and EBANX as customers. **Devin Fusion (9/11)** -- the lead/sidekick two-model harness measured at 23-46% lower cost per task -- and the 9/15 AWS multi-year agreement stand.
Replit
Cloud IDE with an AI agent that builds full apps from prompts. **Free Mode (2026-08-18)**, powered by OpenAI's GPT-5.6 Luna, lets Core and Pro subscribers chat and run everyday tasks without spending credits -- up to 30 hours of chat a month on Core -- and **Intelligent Model Routing (2026-08-26)** now picks the model per task at what Replit measured as 65% lower cost than the old Max Mode. Replit acquired the charting startup Atta on 2026-09-25. Agent 4 (May 2026) added parallel task execution
Google Antigravity
**Gemini 4 Argon reached Antigravity on 2026-10-13 for Google AI Ultra subscribers and enterprises, and Google is offering 10,000 scientists Antigravity's highest usage tier free for six months.** Google's agent-first AI IDE -- deploys up to 5 autonomous coding agents in parallel on a VS Code fork. Antigravity 2.0 (I/O 2026) is the runtime substrate for Gemini Spark, and the Antigravity CLI is now the official successor to Gemini CLI, which stopped serving consumer tiers on 2026-06-18
Codestral 2 (Mistral)
Mistral's dedicated code model -- Codestral 2 (launched 2026-04-08) relicensed under Apache 2.0, removing the commercial-use restrictions of the original. 22B dense, strong FIM (fill-in-middle), available via Mistral API + Hugging Face
Roblox Assistant
Roblox Studio's agentic AI that plans, builds, and playtests games. Planning Mode (2026-04-16) + Mesh Generation + Procedural Models brings 3D-native creation to 70M+ daily creators