SOURCE-LINKED INTELLIGENCE

OpenAI: GPT-5.1-Codex-Max

OpenRouter model catalogue · model · Publication date unknown

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...

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recordType

model-catalog

evidenceStatus

provider-reported

region

Global