This model is not part of the weekly automatic sync. The figures below were confirmed on 2026-08-13.
o1 Initial Public Preview Snapshot
o1-preview — OpenAI. Context window 128,000 tokens. API pricing (per 1M tokens): Input $15, Output $60. License: Proprietary. LMArena 1,353. GPQA Diamond 76.8%.
| Provider | OpenAI |
|---|---|
| Tier | Frontier |
| Context window | 128,000 tokens |
| Max output | 32,768 tokens |
| License | Proprietary |
| API pricing (per 1M tokens) · Input | $15 |
| API pricing (per 1M tokens) · Output | $60 |
| LMArena | 1,353 (o1-preview) |
| GPQA Diamond | 76.8% |
LMArena (CC-BY 4.0, best reasoning setting, 2026-10-02) · GPQA Diamond: Epoch AI (CC-BY 4.0)
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