O1 pricing
Source: litellm · updated 2026-10-27
Short answer: O1 costs $15.00 per million input tokens and $60.00 per million output tokens. That is a 3:1 blended rate of $26.25 per million tokens, ranking it #695 of 704 tracked models by input price.
Price breakdown
| Metric | USD |
|---|---|
| Input, per 1M tokens | $15.00 |
| Output, per 1M tokens | $60.00 |
| Output รท input multiple | 4.00× |
| 3:1 blended, per 1M tokens | $26.25 |
| Context window | 200,000 tokens |
What a typical workload costs
| Monthly volume | Input cost | Output cost | Total | 1M in / 250K out | $15.00 | $15.00 | $30.00 |
|---|---|---|---|---|---|---|---|
| 10M in / 2.5M out | $150 | $150 | $300 | ||||
| 100M in / 25M out | $1,500 | $1,500 | $3,000 |
Other o1 models
| Model | Input | Output |
|---|---|---|
| O1 Pro | $150 | $600 |
Cheaper alternatives
Next cheaper option: Us Gov Anthropic Claude Fable 5.1 at $12.00 per 1M input tokens. Next step up: GPT-5.6 Cyber at $12.50 per 1M input tokens.