ChatGPT App Update: Hidden Gesture & New Features

OpenAI has added a hidden gesture to the ChatGPT app that lets you instantly set the effort level of a prompt. You can now long-press the send arrow icon on a message to choose between Instant, Thinking, and Extended response options. These intelligence levels help tailor how much effort ChatGPT spends on a prompt. What's interesting is that OpenAI also introduced a new way to navigate longer conversations. For chats with five or more responses, a table of contents now appears on the web app, allowing users to jump to specific parts of the discussion. The default model used by ChatGPT has also changed. The GPT-5.5 Instant model, which arrived last month, has been tweaked to improve response style and quality, making it easier to read and more natural. These updates aim to give users more control and better interactions with the ChatGPT app.