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.

Once the regular limit is hit, the queries are automatically switched to the lightweight version. Users on the Plus and Team plans can make 25 Deep Research queries per month. Enterprise and Edu subscribers will get access to this next week, with rate limits similar to the Team plan.

OpenAI is expanding the availability of ChatGPT's Deep Research tool by introducing a lightweight version everyone can use.