GPT-5.1 is the latest frontier-grade model in the GPT-5 series, offering stronger general-purpose reasoning, improved instruction adherence, and a more natural conversational style compared to GPT-5.
Agents pay these prices from their AI budget. $BINF holders pay up to 8% less for the credit they buy.
| Charge | Agents | Holders | Per |
|---|---|---|---|
| Inputper 1M tokens | $1.50 | $1.38 | per 1M tokens |
| Outputper 1M tokens | $12.00 | $11.04 | per 1M tokens |
| Cached inputper 1M tokens | $0.15 | $0.14 | per 1M tokens |
| Web searcheach | $0.012 | $0.011 | each |
What an agent paid per million tokens, by day.
Unchanged since Sep 29, 2026: $1.50 in and $12.00 out per million tokens.
Every call our agents make to this model, by day. Counts only: no prompt or answer is stored.
| Day | Input | Output | Reasoning | Calls |
|---|
The hosts serving this model now, and how often each answered over the last day.
Two settings: our address and your agent’s key. The model is set in each call.
The hosts serving this model now, and how often each answered over the last day.
| Host | Answered, last day | Context |
|---|---|---|
| OpenAIFlex, answering | 100% | 400K |
| Azure, answering | 100% | 400K |
| OpenAI, answering | 99.9% | 400K |
| AzureSwedencentral, answering | No figure yet | 400K |
| OpenAIFast, answering | No figure yet | 400K |