LLMPrice
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OpenAI · OpenRouter

GPT-5.1-Codex-Max pricing

GPT-5.1-Codex-Max is OpenAI’s latest agentic coding model, designed for long-running, high-context software development tasks. It is based on an updated version of the 5.1 reasoning stack and trained on agentic...

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 useVisionReasoningWeb searchCaching
2,000 input + 500 output tokens$0.0075 / request
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