According to UsagePricing's tracker, o1 costs $15.00 per 1M input tokens and $60.00 per 1M output tokens as of August 2026. The model supports a 200,000-token context window.
OpenAI's first reasoning model — superseded by the o3 and o4 lines.
Token Costs (per 1M)
Input Price
$15.00
Output Price
$60.00
Technical Specs
Price History
| Date | Input Price | Output Price |
|---|---|---|
| 8/31/2026 | $15.00 | $60.00 |
Compare o1 With Other Models
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Frequently Asked Questions
How much does o1 cost per 1M tokens? ▼
o1 costs $15 per 1M input tokens and $60 per 1M output tokens as of August 2026.
What is o1's context window? ▼
o1 has a context window of 200,000 tokens, meaning it can process approximately 150,000 words in a single request.
Who makes o1? ▼
o1 is made by OpenAI. You can access it via the OpenAI API.