OpenAI: GPT-5.1
openai/gpt-5.1
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...
Modalities
In / Out Price
$1.25 / $10 per 1M
Context
400K
Released
Nov 13, 2025
Knowledge Cutoff
—
Providers
Different carriers host the same model. Reroute routes each request to the best one on price and uptime, and fails over to the next if a carrier goes down.
| Provider | Context | Input /M | Output /M | Cache read /M | Latency | Throughput | Uptime |
|---|---|---|---|---|---|---|---|
| OpenAI | 400K | $0.625 | $5 | $0.0625 | — | — | — |
 Azure | 400K | $1.25 | $10 | $0.13 | — | — | 100.00% |
| OpenAI | 400K | $1.25 | $10 | $0.125 | — | — | 100.00% |
| Azure | 400K | $1.38 | $11 | $0.143 | — | — | — |
| OpenAI | 400K | $2.50 | $20 | $0.25 | — | — | — |