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. It uses adaptive reasoning...
| Field | Per token (USD) | Per million |
|---|---|---|
| prompt | 0.00000125 | $1.25 |
| completion | 0.00001 | $10.0 |
| web_search | 0.01 | $10000 |
| input_cache_read | 0.000000125 | $0.125 |
{
"temperature": null,
"top_p": null,
"top_k": null,
"frequency_penalty": null,
"presence_penalty": null,
"repetition_penalty": null
}