OpenAI
o1
O-series reasoning model for hard analysis, math, coding, and planning
Model facts
- Context window
- 2K tokens
- Maximum output
- 1K tokens
- Cheapest paid input
- $14 per 1M tokens
- Cheapest paid output
- $54 per 1M tokens
- Open weights
- no
- Providers
- 14
Capabilities and modalities
reasoning, tool calling, structured output, attachments, text, image, pdf.
Artificial Analysis benchmarks
Compare this model on the full LLM benchmark leaderboard.
| Configuration | AAI | Coding | Math | Output tokens/s |
|---|---|---|---|---|
| default | 23.9 | 39.7 | not measured | not measured |
Observed price history
- 2026-08-24: $7.5 input / $30 output per 1M tokens
- 2026-08-28: $14 input / $54 output per 1M tokens
API providers
- Poe — model id openai/o1; $14 input / $54 output per 1M tokens; provider documentation
- Azure — model id o1; $15 input / $60 output per 1M tokens; provider documentation
- Azure Cognitive Services — model id o1; $15 input / $60 output per 1M tokens; provider documentation
- DevPass (LLM Gateway) — model id o1; $15 input / $60 output per 1M tokens; provider documentation
- Eden AI — model id openai/o1; $15 input / $60 output per 1M tokens; provider documentation
- Helicone (OpenAI) — model id o1; $15 input / $60 output per 1M tokens; provider documentation
- Impossibl — model id openai/o1; $15 input / $60 output per 1M tokens; provider documentation
- Kilo Gateway — model id openai/o1; $15 input / $60 output per 1M tokens; provider documentation
- LLM Gateway (Azure) — model id azure/o1; $15 input / $60 output per 1M tokens; provider documentation
- LLM Gateway (OpenAI) — model id openai/o1; $15 input / $60 output per 1M tokens; provider documentation
- Merge Gateway — model id openai/o1; $15 input / $60 output per 1M tokens; provider documentation
- OpenAI — model id o1; $15 input / $60 output per 1M tokens; provider documentation
- OpenRouter — model id openai/o1; $15 input / $60 output per 1M tokens; provider documentation
- Vercel AI Gateway — model id openai/o1; $15 input / $60 output per 1M tokens; provider documentation