specs at a glance
| Leaderboard status | Verifying — no confirmed SWE-bench Verified score |
|---|---|
| SWE-bench Verified | — |
| SWE-bench Pro | — |
| Terminal-Bench | — |
| Input price / 1M | $2 |
| Output price / 1M | $10 |
| Context window | — |
| Open weights | No |
| Access | API (gpt-6.1-sol) · ChatGPT Work, Plus, Pro, Business, Enterprise, Edu (Codex) — not yet in the consumer ChatGPT app |
| Maker | OpenAI |
how good is GPT-6.1 Sol at coding?
GPT-6.1 Sol is on our board but deliberately unranked. We rank by SWE-bench Verified, OpenAI has not published that number, and no independent evaluation has run it, so there is nothing here we could stand behind. It moves into the ranking the moment a confirmed score exists.
Score provenance: Vendor-reported (OpenAI, Sept 29 2026): matches GPT-6 Astra on DeepSWE v1.1 (a real-codebase coding benchmark) at roughly a fifth of the cost, and scores 2.2 points above Claude Opus 5.5 on AutomationBench at medium reasoning effort. OpenAI did not publish a SWE-bench Verified score for this release, so there is nothing to rank on our tracked metric; it enters the verifying queue unranked.
Pricing: $2/M input, $10/M output, $0.10/M cached input, versus Astra's $10/$50, matching Claude Sonnet 5's list price to the cent. Queue caveat: vals.ai archived its SWE-bench Verified board on 5 September 2026, so this row is unlikely to ever receive an independent score from that source. See /p/gpt-6-1-sol-openai-cheap-model-nears-astra/. Re-checked 2026-09-30: vals.ai has not evaluated it; its SWE-bench Verified board is archived (88 systems, frozen since 2026-09-05).
what does GPT-6.1 Sol cost?
$2 per 1M input tokens and $10 per 1M output — as listed by the maker. Coding workloads are output-heavy, so weight the output rate when budgeting. Run your own volume through the AI API cost calculator for a monthly estimate.
where can you use it?
Available via API (gpt-6.1-sol) · ChatGPT Work, Plus, Pro, Business, Enterprise, Edu (Codex) — not yet in the consumer ChatGPT app. As a proprietary model, you're on the maker's infrastructure and release schedule.
Full storyGPT-6.1 Sol: OpenAI's Cheap Model Nears Astra's Power
Ranked on our AI Coding Leaderboard — scores confirmed against primary sources only, updated 2026-09-28.