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features
design
support

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Write a Review

Description

CodeGen is an open-source framework designed for generating code through program synthesis, utilizing TPU-v4 for its training. It stands out as a strong contender against OpenAI Codex in the realm of code generation solutions.

Description

The GPT-5.1-Codex-Max represents the most advanced version within the GPT-5.1-Codex lineup, specifically tailored for software development and complex coding tasks. It enhances the foundational GPT-5.1 framework by emphasizing extended objectives like comprehensive project creation, significant refactoring efforts, and independent management of bugs and testing processes. This model incorporates adaptive reasoning capabilities, allowing it to allocate computational resources more efficiently based on the complexity of the tasks at hand, ultimately enhancing both performance and the quality of its outputs. Furthermore, it facilitates the use of various tools, including integrated development environments, version control systems, and continuous integration/continuous deployment (CI/CD) pipelines, while providing superior precision in areas such as code reviews, debugging, and autonomous operations compared to more general models. In addition to Max, other lighter variants like Codex-Mini cater to budget-conscious or scalable application scenarios. The entire GPT-5.1-Codex suite is accessible through developer previews and integrations, such as those offered by GitHub Copilot, making it a versatile choice for developers. This extensive range of options ensures that users can select a model that best fits their specific needs and project requirements.

API Access

Has API No 

API Access

Has API Yes 

Screenshots View All

Screenshots View All

Integrations

Python Yes 
Cursor No 
Elixir No 
GPT-5.1 No 
GPT-5.2 Pro No 
GPT-5.5 Pro No 
GPT-5.6 Luna No 
GPT-5.6 Sol Ultrafast No 
GPT‑5.4 Thinking No 
GitHub No 
GitHub Copilot No 
HTML No 
Holo4 No 
JavaScript No 
JetBrains Junie No 
Laravel No 
Motiff Yes 
Motileo Yes 
OpenAI Codex No 
R No 

Integrations

Python Yes 
Cursor Yes 
Elixir Yes 
GPT-5.1 Yes 
GPT-5.2 Pro Yes 
GPT-5.5 Pro Yes 
GPT-5.6 Luna Yes 
GPT-5.6 Sol Ultrafast Yes 
GPT‑5.4 Thinking Yes 
GitHub Yes 
GitHub Copilot Yes 
HTML Yes 
Holo4 Yes 
JavaScript Yes 
JetBrains Junie Yes 
Laravel Yes 
Motiff No 
Motileo No 
OpenAI Codex Yes 
R Yes 

Pricing Details

Free
Open source
Free Trial No 
Free Version Yes 

Pricing Details

No price information available.
Free Trial No 
Free Version Yes 

Deployment

Web-Based Yes 
On-Premises Yes 
iPhone App No 
iPad App No 
Android App No 
Windows No 
Mac No 
Linux No 
Chromebook No 

Deployment

Web-Based Yes 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows No 
Mac No 
Linux No 
Chromebook No 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support No 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support Yes 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Vendor Details

Company Name

Salesforce

Founded

1999

Country

United States

Website

github.com/salesforce/CodeGen

Vendor Details

Company Name

OpenAI

Founded

2015

Country

United States

Website

openai.com/index/gpt-5-1-codex-max/

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