GPT-5.1 Pro

GPT-5.1 Pro

OpenAI
+
+

Related Products

  • JetBrains Junie
    2 Ratings
    Visit Website
  • Google AI Studio
    11 Ratings
    Visit Website
  • Windsurf Editor
    155 Ratings
    Visit Website
  • Vertex AI
    783 Ratings
    Visit Website
  • Atera
    3,015 Ratings
    Visit Website
  • Claude
    38,813 Ratings
    Visit Website
  • Assembled
    224 Ratings
    Visit Website
  • Gemini
    1,037,445 Ratings
    Visit Website
  • Vantaca
    342 Ratings
    Visit Website
  • AnalyticsCreator
    46 Ratings
    Visit Website

About

GPT-5.1-Codex-Max is the high-capability variant of the GPT-5.1-Codex series designed specifically for software engineering and agentic code workflows. It builds on the base GPT-5.1 architecture with a focus on long-horizon tasks such as full project generation, large-scale refactoring, and autonomous multi-step bug and test management. It introduces adaptive reasoning, meaning the system dynamically allocates more compute for complex problems and less for simpler ones, to improve efficiency and output quality. It also supports tool use (IDE-integrated workflows, version control, CI/CD pipelines) and offers higher fidelity in code review, debugging, and agentic behavior than general-purpose models. Alongside Max, there are lighter variants such as Codex-Mini for cost-sensitive or scale use-cases. The GPT-5.1-Codex family is available in developer previews, including via integrations like GitHub Copilot.

About

GPT-5.1 Pro is the highest-performance version of the GPT-5.1 model family, designed for research-grade reasoning and advanced analytical workloads. It delivers deeper, more structured thinking, making it ideal for complex problem-solving across coding, science, finance, law, and technical research. Unlike the Instant and Thinking versions, GPT-5.1 Pro is built to maintain accuracy under heavy cognitive load, producing clearer logic and more reliable multi-step reasoning. Pro users also gain access to extended context windows, allowing significantly longer inputs and deeper information processing. While it supports the full range of ChatGPT features, GPT-5.1 Pro is optimized for precision, rigor, and high-stakes tasks. It is available exclusively to ChatGPT Pro and Business customers.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

Development teams and engineering organizations requiring a tool for generating, refactoring and maintaining large-scale codebases

Audience

GPT-5.1 Pro is ideal for researchers, technical professionals, and advanced users who require ChatGPT’s strongest reasoning capabilities for high-precision, high-complexity work

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

No images available

Pricing

No information available.
Free Version
Free Trial

Pricing

No information available.
Free Version
Free Trial

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 5.0 / 5
ease 5.0 / 5
features 5.0 / 5
design 5.0 / 5
support 5.0 / 5

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

OpenAI
Founded: 2015
United States
openai.com/index/gpt-5-1-codex-max/

Company Information

OpenAI
Founded: 2015
United States
openai.com

Alternatives

Claude Code

Claude Code

Anthropic

Alternatives

Claude Opus 4.5

Claude Opus 4.5

Anthropic
Claude Opus 4.1

Claude Opus 4.1

Anthropic
Claude Opus 4.5

Claude Opus 4.5

Anthropic
ChatGPT Pro

ChatGPT Pro

OpenAI

Categories

Categories

Integrations

C++
ChatGPT
ChatGPT Enterprise
ChatGPT Plus
ChatGPT Pro
Codex CLI
GitHub
GitHub Copilot
Go
Java
JavaScript
JetBrains Junie
Kotlin
OpenAI Codex
PHP
Python
SQL
TypeScript
Verdent
Visual Studio Code

Integrations

C++
ChatGPT
ChatGPT Enterprise
ChatGPT Plus
ChatGPT Pro
Codex CLI
GitHub
GitHub Copilot
Go
Java
JavaScript
JetBrains Junie
Kotlin
OpenAI Codex
PHP
Python
SQL
TypeScript
Verdent
Visual Studio Code
Claim GPT-5.1-Codex-Max and update features and information
Claim GPT-5.1-Codex-Max and update features and information
Claim GPT-5.1 Pro and update features and information
Claim GPT-5.1 Pro and update features and information