Image Credits:Silas Stein / picture alliance / Getty Images 3:21 PM PDT · April 24, 2025 OpenAI is bringing a new “lightweight” version of its ChatGPT deep research tool, which scours the web to compile research reports on a topic, to ChatGPT Plus, Team, and Pro users, the company announced Thursday. The new lightweight deep research, which will also come to free ChatGPT users starting today, is powered by a version of OpenAI’s o4-mini model, OpenAI says. It’s not quite as capable as the “full” ...