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CodyLabs Now Supports GPT-5 Codex for Code Review

· 2 min read
David Watts
David Watts
Software Developer

We’re excited to announce that CodyLabs, your favorite free and open source AI code reviewer, now fully supports the brand new GPT-5 Codex model from OpenAI for automated code review and summarization!

CodyLabs + GPT-5 Codex: Smarter Code Reviews​

OpenAI’s GPT-5 Codex brings a new level of intelligence and accuracy to code understanding. CodyLabs now lets you take full advantage of this powerful model for your automated code reviews.

How to Use GPT-5 Codex with CodyLabs​

It’s simple—just set the OPENAI_MODEL environment variable to gpt-5-codex in your workflow. For example:

- name: Run Code Review Model
  run: |
    python src/review_pull_request.py ${{ github.event.pull_request.number }} ${{ github.repository }} > ${{ github.workspace }}/output.txt
  env:
    GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
    OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
    # Use the new GPT-5 Codex model
    OPENAI_MODEL: "gpt-5-codex"

You can also choose any other model from the OpenAI model list if you prefer.

Why CodyLabs?​

  • Free and Open Source: No paywalls, no vendor lock-in—just great code reviews.
  • Seamless Integration: Works with GitHub Actions and GitLab pipelines.
  • Supports GPT-5 Codex: Get the most advanced code review AI available today.
  • Your Workflow, Your Choice: Use GPT-5 Codex, GPT-4, or any other OpenAI model you like.

CodyLabs is the go-to solution for developers searching for a free, open source, AI-powered code review tool. Whether you want the best free AI code reviewer, an open source alternative to commercial tools, or to try GPT-5 Codex for code review, CodyLabs has you covered.

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