CodeGen

CodeGen

Salesforce
GPT-6 Luna

GPT-6 Luna

OpenAI
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About

CodeGen is an open-source model for program synthesis. Trained on TPU-v4. Competitive with OpenAI Codex.

About

GPT-6 Luna is OpenAI’s cost-efficient GPT-6 model designed for everyday professional work, coding, computer use, and agentic applications at scale. It brings many of the advances introduced with GPT-6 Astra to a faster and substantially lower-cost model while improving on GPT-5.6 Luna in capability and factual reliability. The model supports adjustable reasoning effort, allowing applications to spend more compute on harder tasks and less on simpler requests. GPT-6 Luna can handle software engineering, multi-step business workflows, computer interaction, and other tool-using tasks that benefit from low operating cost. Improved GPT-6 prompt caching helps long-running agents reuse more context, respond faster, and reduce the cost of repeated input. GPT-6 Luna is available in ChatGPT Work, Codex, the ChatGPT desktop app for Free and Go users, and the OpenAI API as gpt-6-luna.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Developers interested in a large language model for code

Audience

Developers, startups, AI agent builders, software teams, businesses, and high-volume applications that need capable coding, reasoning, computer use, and automation at a low operating cost

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Not Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Not Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

Pricing

Free
Open source
Free Version Supported
Free Trial Not Supported

Pricing

$0.10 per 1M tokens (input)
Input: $0.10 per 1 million tokens
Output: $0.50 per 1 million tokens
Free Version Not Supported
Free Trial Not Supported

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:

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Reviews/Ratings

Overall 5.0 / 5

Pros & Cons from Real Users

Pros

  • At $0.10 per million input tokens and $0.50 per million output tokens, I can run it across a lot of everyday coding, automation, classification, extraction, and agent steps without constantly thinking about cost. The 1.05M-token context window is almost ridiculous at this price. I can give it large repos, long docs, logs, and plenty of agent history without immediately hitting context limits. I also like that Luna still gets the full tool stack. Web search, files, code execution, shell access, computer use, MCP, and function calling are all supported, so it is not just a stripped-down cheap model.

Cons

  • The tradeoff is raw capability. For difficult architecture work, deep debugging, or long-horizon tasks where mistakes are expensive, I would still move up to GPT-6 Sol or Astra.

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

Salesforce
Founded: 1999
United States
github.com/salesforce/CodeGen

Company Information

OpenAI
Founded: 2015
United States
openai.com

Alternatives

T5

T5

Google

Alternatives

StarCoder

StarCoder

BigCode
ChatGPT Pro

ChatGPT Pro

OpenAI
Codestral

Codestral

Mistral AI
GPT-6.1 Sol

GPT-6.1 Sol

OpenAI

Categories

AI Code Generators Supported
AI Coding Models Supported
AI Models Supported
AI Tools Supported

Categories

AI Coding Models Supported
AI Models Supported
AI Vision Models Supported
Foundation Models Supported
Multimodal Models Supported

Integrations

Python Supported
Amp Not Supported
Augment Code Not Supported
Brokk Not Supported
C++ Not Supported
ChatGPT Plus Not Supported
ChatGPT Pro Not Supported
Cursor Not Supported
Doraverse Not Supported
FauxPilot Supported
Forefront Supported
GitHub Not Supported
GitHub Copilot Not Supported
JavaScript Not Supported
LaunchLemonade Not Supported
Microsoft 365 Copilot Not Supported
Microsoft Excel Not Supported
Novelcrafter Not Supported
PHP Not Supported
Visual Studio Code Not Supported

Integrations

Python Supported
Amp Supported
Augment Code Supported
Brokk Supported
C++ Supported
ChatGPT Plus Supported
ChatGPT Pro Supported
Cursor Supported
Doraverse Supported
FauxPilot Not Supported
Forefront Not Supported
GitHub Supported
GitHub Copilot Supported
JavaScript Supported
LaunchLemonade Supported
Microsoft 365 Copilot Supported
Microsoft Excel Supported
Novelcrafter Supported
PHP Supported
Visual Studio Code Supported
Claim CodeGen and update features and information
Claim CodeGen and update features and information
Claim GPT-6 Luna and update features and information
Claim GPT-6 Luna and update features and information