GPT-5.5 and Codex App Updates: Browser Use, Auto Reviews
GPT-5.5 arrives in Codex with browser automation and automatic approval reviews. Switch models in the CLI, IDE, or app to unlock the latest frontier model for complex coding and debugging workflows.
TL;DR
- GPT-5.5 now available in Codex as the recommended model for coding tasks
- Codex app gains browser use — let the AI interact with local dev servers and UIs
- Automatic approval reviews route eligible requests through a reviewer agent first
New
- GPT-5.5 model support — Switch to GPT-5.5 in CLI with
codex --model gpt-5.5, or select from the model picker in IDE extensions and the Codex app. Recommended for implementation, refactors, debugging, testing, and validation. - Browser use in Codex app — Codex can now operate the in-app browser for local development servers and file-backed pages. Ask it to click through UIs, reproduce visual bugs, or verify fixes. Manage the Browser plugin and allowed/blocked sites in settings.
- Automatic approval reviews — Eligible approval prompts route through an automatic reviewer agent before execution. The app shows review status and risk level so you can decide whether to proceed.
Getting Started
- Update your CLI, IDE extension, or Codex app to access GPT-5.5. If it's not yet available in your account, continue using GPT-4 during the rollout.
Update Codex: npm install -g @openai/codex@latest
Source: Codex
