GPT-5.3 Codex is now available in ThinkReview
GPT-5.3 Codex is now available in ThinkReview
We're excited to announce that GPT-5.3 Codex is now available in ThinkReview. OpenAI's latest code-focused model is ready to use for AI-powered code reviews on your pull requests—on GitHub, GitLab, Azure DevOps, and Bitbucket.
What's New
GPT-5.3 Codex builds on the strengths of its predecessors with improved code comprehension and more precise analysis. It's designed to understand complex codebases and deliver actionable feedback that helps you ship better code.
Why use GPT-5.3 Codex
- Better code understanding — Enhanced context and relationship awareness in your codebase
- More accurate suggestions — Recommendations that align with modern development practices
- Larger context support — Handle bigger merge requests with full-scope analysis
- Faster processing — Optimized for quicker review turnaround
How to use it
- Open ThinkReview settings — Click the extension icon and go to Settings or Model selection.
- Choose GPT-5.3 Codex — Select it from the model dropdown for your reviews.
- Run a review — Open any pull request and click AI Review. The review will use GPT-5.3 Codex when it's in your preferred models.
GPT-5.3 Codex is available to Professional and Teams plan subscribers. You can select it in your Model Selection settings. The model is integrated into ThinkReview's model selection system, which picks the best model based on your code size, preferences, and subscription tier.
What's next
We're continuing to add the latest AI models as they become available. If you try GPT-5.3 Codex in ThinkReview and have feedback, we'd love to hear it—open an issue on GitHub or reach out via thinkreview.dev.
Ready to try the latest in AI-powered code reviews? Upgrade to Professional or try ThinkReview free today.