GPT-5.1-Codex-Max
OpenAI · 1 configuration
Intelligence—
Input / 1M$1.25
Output / 1M$10.00
Context400K
Tariff: OpenRouter · Source: openrouter · USD per million tokens
Thinking configuration
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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...
This model is in the catalog but has no imported benchmarks. Capabilities are not estimated.
Specifications from the catalog
Inputtext, image
Outputtext
Tool callingYes
Structured outputYes
SpeedNot available
First tokenNot available
Maximum output128K
Catalog listing date2025-12-04