Seedance 2.5 (ByteDance)
Free tier available
- Dreamina Free Tier$0
- CapCut Pro$9.99/mo
- Dreamina Basic$18/mo
Our pickSeedance 2.5 (ByteDance)

Codex (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
Tier-list head-to-head. Seedance 2.5 (ByteDance) takes the A-tier slot — here's the breakdown.
Spec sheet
| Tier | A-tierwin | A-tier |
| Overall score | 8.8 / 10win | 8.3 / 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 | $0 | $2/$10 |
| Best for | Short-form content creators already using CapCut (TikTok, Instagram Reels, YouTube Shorts). | Developers already paying for ChatGPT Plus who want a coding agent at no extra cost. |
| Last reviewed | 2026-10-29 | 2026-11-05 |
Head-to-head
Rated 1-10 on the same rubric across all 130 tools we cover.
What you'll pay
Look past the headline number -- entry-tier limits drive most cost surprises.
Free tier available
Free tier available
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 — Seedance 2.5 (ByteDance) has no published benchmarks
| Benchmark | Description | Score |
|---|---|---|
| SWE-bench | Real GitHub issue fixing | 72% |
| HumanEval | Python code generation | 95% |
The decision
Use-case anchors and category strengths, side by side.
Short-form content creators already using CapCut (TikTok, Instagram Reels, YouTube Shorts). If you're producing high-volume social video where character consistency matters and you need audio synced to the shot, Seedance inside CapCut (Seedance 2.0 at our April check) or on Dreamina (Seedance 2.5) is friction-free and the output quality is a real jump over everything that came before in 2025.
Visit Seedance 2.5 (ByteDance)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)Bottom line
Seedance 2.5 (ByteDance) edges out Codex (OpenAI) by 0.5 points (8.8 vs 8.3) -- a A-tier vs A-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 Seedance 2.5 (ByteDance)'s strengths, so if those categories are your priority, the lead translates.
Pricing-wise, both tools have a free tier (Seedance 2.5 (ByteDance) starts $0, Codex (OpenAI) starts $2/$10), 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 Seedance 2.5 (ByteDance) when short-form content creators already using capcut (tiktok, instagram reels, youtube shorts). Pick Codex (OpenAI) when developers already paying for chatgpt plus who want a coding agent at no extra cost. The two tools aren't fighting for the same person -- they're aiming at adjacent jobs that occasionally overlap. If you're squarely in Seedance 2.5 (ByteDance)'s lane, the tier-list ranking and the use-case fit point the same direction; if you're in Codex (OpenAI)'s lane, the score gap matters less than the fit.
Bottom line: Seedance 2.5 (ByteDance) is the safer default for most readers, but Codex (OpenAI) is competitive enough that the tie-breaker is your specific workload, not the spec sheet.
Keep digging
Full Seedance 2.5 (ByteDance) review
Tier A · 8.8/10
Full Codex (OpenAI) review
Tier A · 8.3/10
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Built from our daily AI-tool sweep, last touched November 5, 2026. Honest tier-list reviews — no affiliate-link pieces disguised as advice. See the rubric or how we review.