The ChatGPT project file limit is 5 files per project on Free, 25 on Go and Plus, and 40 on Edu, Pro, Business and Enterprise, according to OpenAI’s Projects in ChatGPT help article.
As of November 10, 2026, OpenAI also says only 10 files can be uploaded to a project at the same time, so filling a 25- or 40-file project takes several batches. You can create an unlimited number of projects. Project sources can be PDFs, spreadsheets, documents, images or pasted text. Shared projects follow the owner’s plan: Free owners can add up to 5 collaborators, Plus and Go owners up to 10, and Pro owners up to 100, while Business, Enterprise and Edu workspace projects allow up to 100 collaborators.
If you reach the limit, OpenAI suggests removing older or unnecessary uploads, combining file data or splitting the work into multiple projects. Per-file size limits and upload rate caps are separate; see our ChatGPT file upload limit answer below.
Related: What is the ChatGPT file upload limit?, ChatGPT usage limits: how much can you use on each plan? and ChatGPT Business Hub power-user guide
Source: OpenAI Help Center, Projects in ChatGPT
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