OpenAI is introducing a new version of its ChatGPT deep research tool that it says is cheaper to operate. The “lightweight” model is available now to free users, as well as those on several of the company’s paid tiers.
Deep research (lightweight) is powered by a version of OpenAI’s o4-mini model, and the company says it’s “nearly as intelligent” as the original deep research mode, which produces lengthy reports including citations and summaries of its process. OpenAI adds that…
