OpenAI has quietly revamped the ChatGPT interface for Plus, Pro and Business users, placing the model selector—Instant, Thinking and Configure—directly beside the prompt box. The change makes it easier for subscribers to pick the right version of GPT for their tasks, with Instant delivering speed, Thinking offering deeper reasoning, and a hidden Pro tier unlocking the most powerful GPT‑5.5 engine. A new auto‑select switch and an extended thinking mode also appear in the Configure menu, giving users finer control over performance and resource usage. Read more →

Google rolled out two productivity upgrades for its AI‑powered research tool NotebookLM. The notebook now automatically tags and groups sources once a user adds five or more items, cutting the time spent sorting material. A new sharing workflow lets users paste an entire list of email addresses, letting teams collaborate without entering each address individually. Both features are live for all NotebookLM users and are part of a broader push to integrate the tool with Gemini and make notebook projects free for anyone using the Gemini web platform. Read more →