LLMPrice
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OpenAI · OpenRouter

GPT-5.1 pricing

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...

OpenRouterOpenRouter API
Input$1.25per 1M tokens
Cached input$0.125per 1M tokens
Output$10per 1M tokens
Context400Kmaximum window
Endpoint and source

OpenRouter

Open OpenRouter API source ↗

This is OpenRouter route pricing from the public models API, not a claim about the creator's direct API price.

Tool useVisionFile inputReasoningWeb searchCaching
2,000 input + 500 output tokens$0.0075 / request
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