
OpenAI has introduced a new thinking-time toggle for GPT-5 in ChatGPT. It is said to give more control over how quickly or deeply the model responds. The feature is now live but only available for Plus, Business, and Pro users. It appears in the message composer whenever you select GPT-5 with Thinking enabled.
By default, queries use Standard thinking time, which balances speed and intelligence. However, now with this feature, users will be able to switch to Extended for more thorough reasoning.