gpt-5.1-codex-max

Display Name: GPT-5.1 CodeX Max

OpenAI

Released on Nov 25 12:00 AM

Compare

GPT-5.1-Codex-Max is a version of GPT-5.1-Codex with enhanced capabilities for agentic coding tasks.

Specifications

Context400,000

Maximum Output128,000

Inputtext, image

Outputtext, json

Performance (7-day Average)

Uptime

TPS

Pricing

Standard

Input$0.25/MTokens

Output$2.00/MTokens

Cached Input$0.03/MTokens

Flex

Input$0.13/MTokens

Output$1.00/MTokens

Cached Input$0.01/MTokens

Batch

Input$0.13/MTokens

Output$1.00/MTokens

Cached Input$0.01/MTokens

Availability Trend (24h)

Performance Metrics (24h)

Usage Statistics

No usage data available for this model during the selected period

View your usage statistics for this model

View all usage statistics

Similar Models

GPT-5.2

$1.93/$15.40/M

ctx400Kmax128Kavail—tps—

InOut

GPT-5.2 is OpenAI's best model for coding and agentic tasks across industries.

GPT-5 Chat

$1.38/$11.00/M

ctx400Kmax128Kavail—tps—

InOut

GPT-5 Chat points to the GPT-5 snapshot currently used in ChatGPT. GPT-5 is our next-generation, high-intelligence flagship model. It accepts both text and image inputs, and produces text outputs.

GPT-5.1 CodeX

$1.38/$11.00/M

ctx400Kmax128Kavail—tps—

InOut

GPT-5.1-Codex is a version of GPT-5 optimized for agentic coding tasks in Codex or similar environments. It's available in the Responses API only and the underlying model snapshot will be regularly updated. If you want to learn more about prompting GPT-5-Codex, refer to our dedicated guide

GPT-5.1

$1.38/$11.00/M

ctx400Kmax128Kavail—tps—

InOut

GPT-5.1 is the OpenAI's best model for coding and agentic tasks across industries.

Documentation

No documentation available

This model (gpt-5.1-codex-max) uses a dedicated API. Please refer to the official documentation for usage examples.