Sudowrite
No free tier
- Hobby & Student$10/mo
- Professional$22/mo
- Max$44/mo

Sudowrite
Our pickCodex (OpenAI)
GPT-5.2-Codex (default 2026-04-23) / GPT-5.5 / GPT-5.4
Tier-list head-to-head. Codex (OpenAI) takes the A-tier slot — here's the breakdown.
Spec sheet
| Tier | B-tier | A-tierwin |
| Overall score | 7.3 / 10 | 8.3 / 10win |
| Powered by | — | GPT-5.2-Codex (default 2026-04-23) / GPT-5.5 / GPT-5.4 |
| Free tier | No | Yeswin |
| Starting price | $10 | $0 |
| Best for | Fiction writers who want an AI co-pilot that understands narrative, not just grammar. | Developers already paying for ChatGPT Plus who want a coding agent at no extra cost. |
| Last reviewed | 2026-04-02 | 2026-04-25 |
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.
No free tier
Free tier available
GPT-5.2-Codex (launched 2026-04-23 -- SOTA on SWE-Bench Pro and Terminal-Bench 2.0; first-party scores below pending detailed third-party verification) benchmarks — Sudowrite 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.
Fiction writers who want an AI co-pilot that understands narrative, not just grammar. Particularly useful for NaNoWriMo participants and indie authors.
Visit SudowriteDevelopers 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
Codex (OpenAI) is the clear winner: 8.3/10 (A-tier) versus 7.3/10 (B-tier). Sudowrite isn't a bad tool, but on every category that drives the overall score, Codex (OpenAI) comes out ahead. The tier gap is repeatable -- not methodology noise -- and the day-to-day experience reflects it.
On pricing, Codex (OpenAI) starts free while Sudowrite requires a paid plan from day one ($10+). If you're testing the waters or running an occasional workload, that gap matters more than the score differential. Sudowrite starts at $10; Codex (OpenAI) starts at $0. Compare what each entry tier actually unlocks before you compare list prices -- the limits matter more than the headline number.
By use case: pick Sudowrite when fiction writers who want an ai co-pilot that understands narrative, not just grammar. 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 Codex (OpenAI)'s lane, the tier-list ranking and the use-case fit point the same direction; if you're in Sudowrite's lane, the score gap matters less than the fit.
Bottom line: Codex (OpenAI) is the better tool for most people right now. Pick Sudowrite only when fiction writers who want an ai co-pilot that understands narrative, not just grammar -- that's its lane, and inside that lane it still earns its place.
Keep digging
Full Sudowrite review
Tier B · 7.3/10
Full Codex (OpenAI) review
Tier A · 8.3/10
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Built from our daily AI-tool sweep, last touched April 25, 2026. Honest tier-list reviews — no affiliate-link pieces disguised as advice. See the rubric or how we review.