Codex (OpenAI)
Free tier available
- API -- gpt-6.1-sol (2026-09-29)$2/$10/per 1M tokens; cached input $0.10 (GPT-6 Sol: $0.20)
- Free$0
- Go$8/mo
Our pickA
8.3/10Codex (OpenAI)
GPT-6.1 Sol (added 2026-09-29 for Plus and up, rolling out from Pro; Ultrafast variant coming) + GPT-6 Sol + GPT-6 Luna (2026-09-22; Luna for Free/Go in the desktop app) + GPT-6 Astra (Ultrafast tier on Pro 500/Enterprise) alongside GPT-5.6 Sol / Terra / Luna (GA 2026-07-09; Terra default on Free/Go). GPT-5.5 remains selectable as previous-gen; GPT-5.4 retired from Codex 2026-08-31; GPT-5.2-Codex retired 2026-07-23; gpt-5.3-codex leaves the API 2027-04-01
VS
B
7.5/10Power BI
Codex (OpenAI) vs Power BI
Tier-list head-to-head. Codex (OpenAI) takes the A-tier slot — here's the breakdown.
Last reviewed October 12, 2026· sweep-fresh
Spec sheet
At a glance
| Codex (OpenAI) | Power BI | |
|---|---|---|
| Tier | A-tierwin | B-tier |
| Overall score | 8.3 / 10win | 7.5 / 10 |
| Powered by | GPT-6.1 Sol (added 2026-09-29 for Plus and up, rolling out from Pro; Ultrafast variant coming) + GPT-6 Sol + GPT-6 Luna (2026-09-22; Luna for Free/Go in the desktop app) + GPT-6 Astra (Ultrafast tier on Pro 500/Enterprise) alongside GPT-5.6 Sol / Terra / Luna (GA 2026-07-09; Terra default on Free/Go). GPT-5.5 remains selectable as previous-gen; GPT-5.4 retired from Codex 2026-08-31; GPT-5.2-Codex retired 2026-07-23; gpt-5.3-codex leaves the API 2027-04-01 | — |
| Free tier | Yes | Yes |
| Starting price | $2/$10 | $0 |
| Best for | Developers already paying for ChatGPT Plus who want a coding agent at no extra cost. | Enterprise teams already invested in the Microsoft stack who need serious BI capabilities. |
| Last reviewed | 2026-10-12 | 2026-10-06 |
Head-to-head
Score showdown
Rated 1-10 on the same rubric across all 130 tools we cover.
Ease of use+2.0 Codex (OpenAI)
Codex (OpenAI)
8.0
Power BI
6.0
Output qualityTie
Codex (OpenAI)
8.0
Power BI
8.0
Value+1.0 Codex (OpenAI)
Codex (OpenAI)
8.0
Power BI
7.0
FeaturesTie
Codex (OpenAI)
9.0
Power BI
9.0
Overall+0.8 Codex (OpenAI)
Codex (OpenAI)
8.3
Power BI
7.5
What you'll pay
Pricing snapshot
Look past the headline number -- entry-tier limits drive most cost surprises.
Power BI
Free tier available
- Power BI Desktop / Fabric free account$0
- Power BI Pro$14/user/month, paid yearly
- Power BI Premium Per User$24/user/month, paid yearly
Benchmark Head-to-Head
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 benchmarks — Power BI has no published benchmarks
| Benchmark | Description | Score |
|---|---|---|
| SWE-bench | Real GitHub issue fixing | 72% |
| HumanEval | Python code generation | 95% |
The decision
Which should you pick?
Use-case anchors and category strengths, side by side.
Pick Codex (OpenAI)if…
A
8.3/10- ✓Easier to learn and use day-to-day -- friendlier onboarding curve
- ✓Better value at the price you'll actually pay (8.0/10 on value)
- ✓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.
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.
Visit Codex (OpenAI)Pick Power BIif…
B
7.5/10- ✓Enterprise teams already invested in the Microsoft stack who need serious BI capabilities.
- ✓The Copilot integration makes it more accessible, but Power BI's real strength is still its depth for trained analysts.
Enterprise teams already invested in the Microsoft stack who need serious BI capabilities. The Copilot integration makes it more accessible, but Power BI's real strength is still its depth for trained analysts.
Visit Power BIBottom line
The verdict
Codex (OpenAI) edges out Power BI by 0.8 points (8.3 vs 7.5) -- a A-tier vs B-tier split that's narrow but real. Not a blowout; both belong on a shortlist. The score gap shows up most clearly in the categories that matter for Codex (OpenAI)'s strengths, so if those categories are your priority, the lead translates.
Pricing-wise, both tools have a free tier (Codex (OpenAI) starts $2/$10, Power BI starts $0), so you can test either without committing. Compare what each free tier actually unlocks -- usage caps, model access, and feature gates differ a lot more than the headline price suggests, especially as both vendors have tightened limits in 2026.
By use case: pick Codex (OpenAI) when developers already paying for chatgpt plus who want a coding agent at no extra cost. Pick Power BI when enterprise teams already invested in the microsoft stack who need serious bi capabilities. The two tools aren't fighting for the same person -- they're aiming at adjacent jobs that occasionally overlap. If you're squarely in Codex (OpenAI)'s lane, the tier-list ranking and the use-case fit point the same direction; if you're in Power BI's lane, the score gap matters less than the fit.
Bottom line: Codex (OpenAI) is the safer default for most readers, but Power BI is competitive enough that the tie-breaker is your specific workload, not the spec sheet.
Keep digging
Compare more & explore
Full Codex (OpenAI) review
Tier A · 8.3/10
Full Power BI review
Tier B · 7.5/10
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Built from our daily AI-tool sweep, last touched October 12, 2026. Honest tier-list reviews — no affiliate-link pieces disguised as advice. See the rubric or how we review.