← ChatGPT & Codex changelog

ChatGPT — September 18, 2025

v2025-09-18-6fad6c07 includes 2 changes. Voice Updates

Source: official ChatGPT & Codex release notes. Summaries are written from the official notes; see how we work.

Changed

  • Voice Updates
  • We’re improving the quality and latency of responses of the version of Advanced Voice powered by GPT-4o mini.

Get notified the minute the next ChatGPT & Codex release ships

AI Drops sends a push with a plain-English summary of every release.

Get AI Drops on the App Store