OpenAI: GPT-5.1-Codex-Max

openai/gpt-5.1-codex-max

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...

Context window
400,000 tokens
Input
text · image
Output
text
Relay support
Text & vision

Reference prices & points

Our global markup: 15% · 1 USD = 10,000 points · Price version 0

Billing unitOpenRouter / USDOur reference / USDPoints
Input / 1M tokens$1.25$1.437514,375
Output / 1M tokens$10$11.5115,000
Per search$0.01$0.0115115
Cache read / 1M tokens$0.125$0.143751,437.5

Actual charge = the OpenRouter request cost × the markup locked for that request. Catalogue rates may be routing references; caching, long context, images and audio are charged when used. Listed prices do not mean every capability is available through this relay.

Catalogue time: 2026-11-11T23:15:32.554Z · Live catalogue

View all upstream price fields
{
  "prompt": "0.00000125",
  "completion": "0.00001",
  "web_search": "0.01",
  "input_cache_read": "0.000000125"
}

Integration & availability

Use /v1/chat/completions for non-streaming, multi-turn conversations. Models marked for vision accept images; documents can be extracted to text in the workspace. Create a site API key and ensure you have enough points and the service is enabled. Provider availability, context and budget limits apply.

Read the API guide → · Back to model directory