o1 API Pricing
Reasoning · 200K context · $15 per 1M input tokens, $60 per 1M output tokens.
o1 pricing
| Provider | Input /1M | Output /1M | In+Out |
|---|---|---|---|
| OpenAI | $15 | $60 | $75 |
Prices per 1M tokens, USD. Snapshot 2026-07 — verify with the provider before relying on them.
o1 cost calculator
Frequently asked
How much does o1 cost per 1M tokens?
o1 costs $15 per 1M input tokens and $60 per 1M output tokens from OpenAI.
What is o1's context window?
o1 supports a context window of about 200K tokens. Remember every token in the context is billed on each call.
Is o1 available on other providers?
o1 is offered by OpenAI. For open-weight alternatives you can host on multiple providers, see the full model comparison.