openai/gpt-5.5-pro| Provider | Input, $ per 1M | Output, $ per 1M | In our data since |
|---|---|---|---|
| Poe | $27.273 | $163.636 | 31 Jul 2026 |
| CrossModel | $30 | $180 | 31 Jul 2026 |
| FastRouter | $30 | $180 | 31 Jul 2026 |
| Kilo Code | $30 | $180 | 31 Jul 2026 |
| LLM Gateway | $30 | $180 | 31 Jul 2026 |
| Microsoft Foundry | $30 | $180 | 31 Jul 2026 |
| OpenAI | $30 | $180 | 31 Jul 2026 |
| OpenCode Zen | $30 | $180 | 31 Jul 2026 |
| OpenRouter | $30 | $180 | 31 Jul 2026 |
| OrcaRouter | $30 | $180 | 31 Jul 2026 |
| Vercel | $30 | $180 | 31 Jul 2026 |
| ZenMux | $30 | $180 | 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 |
|---|---|---|---|
| ARC-AGI — generalising to unseen patterns | 96.5 % | effort: high · with a tuned harness | https://arcprize.org/leaderboard |
| FrontierMath, levels 1–3 | 87.72 % | effort: xhigh | Epoch evaluations |
| ARC-AGI-2 | 84.58 % | effort: high | — |
| FrontierMath, level 4 — research-grade problems | 78.05 % | effort: xhigh | Epoch evaluations |
| SimpleBench — trick questions | 72.28 % | effort: high | SimpleBench Leaderboard |
| CritPt — physics problems | 30.57 % | effort: xhigh | — |