o1
OpenAI released 2024-12-17
$26.25 per million tokens, balanced
No independent quality score.
No benchmark we track has measured this model. That is not the same as measuring it and finding it wanting — we simply cannot rank it, so we do not.
Every price dimension
| Input | $15.00/M |
|---|---|
| Output | $60.00/M |
| Cached input | $7.50/M |
| Web search | $0.01/call |
Independent scores
| Coding | 39.7 |
|---|---|
| LMArena Elo | 1352.9preview |
Sources are listed separately rather than averaged. Across the 62 models both have scored they correlate at r = 0.806 — close agreement overall, but four models rank very differently between them, and a blended score would hide exactly those.
Capability
| Context window | 200K |
|---|---|
| Max output | 100K |
| Input modes | text, image, file |
| Tool use | yes |
| Reasoning | optional |
| Knowledge cutoff | 2023-10-31 |
Provenance
| Price source | openrouter.ai |
|---|---|
| Fetched | 2026-08-24 |
| Quality data | unrated |
The latest and strongest model family from OpenAI, o1 is designed to spend more time thinking before responding. The o1 model series is trained with large-scale reinforcement learning to reason...