How to Cite Gemini Deep Research

APA does not currently publish a dedicated example for this exact source type. The format below applies APA's current AI citation principles to this source.

What APA does publish is two worked AI forms: an AI tool — Google. (2025). Gemini 3 Flash [Large language model]. https://gemini.google.com — and an AI chat, which adds the day and a title and moves the tool's name after the brackets. See APA's AI references examples page and its reference-formats post and judge for yourself. The entry below sits between the two: it takes the tool form's year-only date and [Large language model] label, and the chat form's habit of putting a description in the title slot and Gemini after the brackets. APA publishes neither combination. It is built from APA's own elements and its own stated rules — the company is the author, the label is adaptable, and the version parenthetical is retired — but the arrangement is Citation[Z]'s, so a marker who wants one of APA's two printed forms is not wrong to ask for it.

And check first whether you need this entry at all. APA's companion post on AI as a search engine says that if you used AI "as a search engine or intermediary to find information, similar to using Google search or a database search, it is in most cases not necessary to cite AI at all" — you cite the sources you went on to read. The entry below is for when the report itself is what you are discussing.

Google → year → report description → [Large language model] → Gemini → link. Build it in the generator under Manual Entry → AI tool.

No version parenthetical. APA dropped version-by-default in September 2025; give the model if Gemini told you which one it used (Gemini 3 Flash, say), otherwise the plain tool name is fine — APA allows either. Deep Research is a mode, so it goes in your description of the report. If you can share the report, APA's chat form fits better: see how to cite an AI conversation.

Gemini Deep Research is Google's agentic research mode: Gemini plans, browses many sites, and returns a long report with linked sources. It's Google's answer to ChatGPT Deep Research, and it shows up in student work the same way — as a ready-made brief that still needs disclosing and citing.

As with any AI report, the value is in the sources it surfaces; verify and cite those directly wherever you can.

• Author is Google, with Gemini as the source — or the specific model, if Gemini named one. Not as a "version": APA retired that parenthetical as a default.
• Use the share link Gemini generates for the report as your source URL.
• Follow and cite its sources for specific facts — the report links them.
• Same pattern as ChatGPT Deep Research — see that guide; only the author and tool change.