GPT-5.1 (batch)
LLM
by openai ·
openai-gpt-51-20251113
Context window
400K
Max output
128K
Providers
2
Best input
$1.38
About this model
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...
Providers & prices
| Provider | Input $/MTok | Output $/MTok | Context | Upstream ID |
|---|---|---|---|---|
| MA Microsoft Azure | $1.38 | $11.00 | 400K | openai/gpt-5.1 |
| O OpenAI | $2.50 | $20.00 | 400K | openai/gpt-5.1 |