GPT-5.1-Codex-Max

Name: GPT-5.1-Codex-Max
Price: 1.25 USD

v1.0

by OpenAI

Try API

commercial

api

Description

GPT‑5.1-Codex-Max is purpose-built for agentic coding. It's only available in the Responses API. Learn how to get the most of GPT-5.1-Codex-Max in the prompting guide.

Use Cases

Languages

Specifications

Context Length: 400.0K
Pricing: Input: $1.25 / 1M tokens
Output: $10.00 / 1M tokens
License: commercial