Voice Updates

September 18, 2025
Voice Updates

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

September 17, 2025
Toggle thinking time in the message composer

What’s new
We’re giving Plus, Business, and Pro users more control over how long GPT-5 thinks before responding. You can now choose the level of reasoning time, so you can decide whether you want a quicker answer or more in-depth reasoning for your task.

How it works
When you select GPT-5 with Thinking in ChatGPT, you’ll see a new thinking time toggle in the message composer.

• Standard (new default, balancing speed and intelligence) and Extended (the previous default for Plus) are available to all Plus, Business users
• Pro users get two additional options: Light (snappiest) and Heavy (deeper reasoning).
• All queries default to Standard unless you choose to change it. Once you choose a different thinking time, your preference is saved and used for future queries until you switch again.

Why we’re making this change
We’ve heard from some of you that GPT-5 Thinking’s answers can take longer than you’d like. Now you can decide what you need in the moment:

• Light / Standard → quicker answers that still apply reasoning, balancing speed and intelligence.
• Extended / Heavy → more time for deeper, more comprehensive responses when the stakes are higher or the question is more difficult.

What’s next
The thinking-time toggle is live today on chatgpt.com. Settings you choose on the web won’t yet sync to mobile, but we’ll bring this control to our iOS and Android apps in the coming weeks.

September 16, 2025
Improvements to search in ChatGPT
We’ve made further improvements to search in ChatGPT, making results more accurate, reliable, and useful.

• Factuality: Fewer hallucinations, improving answer quality.
• Shopping: Search is better at detecting shopping intent, showing products when you want them and keeping results focused when you don’t.
• Formatting: Answers are better formatted for quick understanding without losing detail or quality.

September 15, 2025
Personalization settings are now in Settings
Personalization no longer opens in a separate modal. You can manage personalization, choose a ChatGPT personality, add custom instructions, and update Memory directly in Settings → Personalization.

Updates to Codex (Plus/Pro) - Introducing GPT-5-Codex
We’re adding GPT-5-codex, a GPT-5 variant optimized for agentic coding in Codex. It’s available everywhere you use Codex: default for cloud tasks and code review, and selectable for local workflows via the Codex CLI and IDE extension. Use GPT-5-codex for coding-focused work in Codex, or Codex-like environments; use GPT-5 for general, non-coding tasks. Please review the announcement blog for more information.

Note: GPT-5-Codex is not currently supported in ChatGPT or the API.

To learn more about Codex, visit the developers site as well as our general help article: Using Codex with your ChatGPT plan.