← ChatGPT & Codex changelog

ChatGPT — October 22, 2025

v2025-10-22-9eb534f5 includes 1 change. We’re updating the model for signed-out users to GPT-5 Instant, giving more people access to higher-quality responses by default. See here to learn more about the intelligence of GPT-5.

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

Changed

  • We’re updating the model for signed-out users to GPT-5 Instant, giving more people access to higher-quality responses by default. See here to learn more about the intelligence of GPT-5.

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