openai/gpt-5.1-2025-11-13| Provider | Input, $ per 1M | Output, $ per 1M | In our data since |
|---|---|---|---|
| Microsoft Foundry | $1.25 | $10 | 31 Jul 2026 |
| NanoGPT | $1.25 | $10 | 31 Jul 2026 |
| OpenAI | $1.25 | $10 | 31 Jul 2026 |
Only the base tier and only per-token prices are shown. Batch, discounted and cached rates, as well as prices per image or per second of video, do not go into this table: they cannot stand in the same column as a price per million tokens.
The date in the last column is the day this price first entered our collection. The price may well be older: before that day we simply were not recording it. It has not changed since — otherwise a new row with a new date would stand in its place.
| Task set | Result | Run conditions | Measured by |
|---|---|---|---|
| Mock AIME 2024–2025 — olympiad problems | 88.6 % | effort: low · with a tuned harness | Epoch evaluations |
| GPQA Diamond — graduate-level questions | 83.5 % | effort: medium · with a tuned harness | Epoch evaluations |
| ARC-AGI — generalising to unseen patterns | 72.8 % | effort: high · with a tuned harness | ARC Prize Leaderboard |
| SWE-bench Verified — fixing bugs in repositories | 67.98 % | effort: high · with a tuned harness | Epoch evaluations |
| WeirdML — unusual machine learning tasks | 60.77 % | effort: high | WeirdML Leaderboard |
| SimpleQA Verified — factual accuracy | 48.9 % | effort: high | Epoch evaluations |
| Terminal-Bench — working in the command line | 47.6 % | · with a tuned harness | Terminal-Bench v2 Leaderboard |
| SimpleBench — trick questions | 43.84 % | effort: high | SimpleBench Leaderboard |
| DeepResearch Bench — deep research | 42.79 % | effort: low | https://drb.futuresearch.ai/#drb self-reported |
| Chess puzzles | 28.45 % | effort: high | Epoch evaluations |
| Humanity’s Last Exam — expert-level questions | 19.83 % | — | — |
| ARC-AGI-2 | 17.64 % | effort: high | — |
| APEX-Agents | 17.5 % | effort: high | — |
| GSO-Bench — code optimisation | 13.73 % | — | https://gso-bench.github.io/index.html |
| CritPt — physics problems | 4.86 % | — | — |