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Scores, capabilities and costs for the models you’re considering.
| 1 model | openaiOpenAI: GPT-5.1Remove × |
|---|---|
| What’s different | 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… |
| Date | Nov 13, 2025Listed |
API prices USD · provider configuration shown below | |
| Listed rate | $0.625 in / $5.00 out/ 1M tokensOpenAI · via OpenRouter · all routes ↗openai/flex · tier=flex |
| Provider endpoints | 7 endpoints → |
Specifications | |
| Context window | 400K |
| Max output | 128K |
| Parameters | — |
| Tool calling | Supported |
| Structured output | Supported |
| Image input | Supported |
| Reasoning | Supported |
| Prompt caching | Supported |