Using Deep Research with Free ChatGPT - Uses are very limited

ChatGPT
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The free version of ChatGPT now has a “Deep Research” option when logged into an OpenAI ChatGPT account.

The image displays a notification about a "deep research" feature with options to "Maybe later" or "Try it now," indicating access to a lightweight version of detailed research on various topics. (Captioned by AI)
The image displays a notification about a "deep research" feature with options to "Maybe later" or "Try it now," indicating access to a lightweight version of detailed research on various topics. (Captioned by AI)446×500 47.9 KB

A digital interface displaying a search bar with options for "Reason," "Deep research," and "Create image" beneath a prompt asking, "What can I help with?" (Captioned by AI)
A digital interface displaying a search bar with options for "Reason," "Deep research," and "Create image" beneath a prompt asking, "What can I help with?" (Captioned by AI)780×165 4.22 KB

Be warned that the use of “Deep Research” is very limited and can be checked by hovering over the “Deep Research” button.

The image shows a digital interface with a search bar and options for Reason, Deep research, and Create image, under the heading "What can I help with?" (Captioned by AI)
The image shows a digital interface with a search bar and options for Reason, Deep research, and Create image, under the heading "What can I help with?" (Captioned by AI)780×223 5.56 KB

See Deep Research FAQ for details

As noted from the X announcement, lightweight means use of 04-mini model.