How to Cite Gemini, Claude, and Other AI Tools
Updated July 2026
The format you learned for ChatGPT works for every generative-AI tool: the company that made the model is the author, the model name and version are the title, with a [Large language model] descriptor and the tool's URL. So Gemini, Claude, Copilot, and Perplexity all follow one pattern — just swap the maker and model.
First, the rule that matters most: check whether your instructor or journal permits AI use — many require disclosure or prohibit it for graded work.
The pattern (APA 7)
Maker. (Year). Model name (Version) [Large language model]. URL Google. (2026). Gemini (2.5) [Large language model]. https://gemini.google.com Anthropic. (2026). Claude (Opus 4.8) [Large language model]. https://claude.ai Microsoft. (2026). Copilot [Large language model]. https://copilot.microsoft.com
Maker as author, model + version as title, [Large language model] descriptor, tool URL. In-text: (Google, 2026), (Anthropic, 2026), etc. This mirrors the ChatGPT format exactly — see How to Cite ChatGPT for the deep dive.
The MLA pattern
“Prompt text or description” prompt. Model Name, Version, Maker, Day Mon. Year, URL.
MLA leads with the prompt (describe or quote it), names the tool as the container, then the version, maker, date, and URL — identical structure across tools.
Perplexity and other 'cited' AI are different
Some tools (Perplexity, AI search modes) provide citations to real sources. When an AI surfaces a study, article, or page, cite that underlying source directly — not the AI. The AI was your search engine, not your source. Click through, verify the claim, and cite the real document. Cite the AI tool itself only to document that you used it.
Put the prompt in your text, and never cite AI for facts
Official guidance: APA's how-to-cite-AI post (applies to all generative AI) and the MLA Style Center on generative AI.
- Document the prompt in your text (or an appendix) — AI output isn't retrievable, so the prompt is what makes your use transparent.
- Never cite AI as the source of a fact — models hallucinate. Verify every claim against a real source and cite that.
- Disclose per your course/journal policy; many require it.
- You're accountable for everything in your paper, including AI-assisted parts.
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Go Premium — $5/monthFrequently asked questions
- Is citing Claude or Gemini different from citing ChatGPT?
- No — same pattern. The maker is the author (Anthropic, Google), the model and version are the title, with a [Large language model] descriptor and the tool URL. Only the names change.
- How do I cite Perplexity?
- If Perplexity cited a real source for the claim you're using, cite that source directly — Perplexity was your search tool, not your source. Cite Perplexity itself only to document that you used it.
- Can I cite an AI tool as a source for facts?
- No — AI can produce confident errors. Verify any claim against a real source and cite that. Cite the AI only to document your use of it.
- Do I need to include my prompt?
- MLA puts a description or quote of the prompt in the title position; APA keeps it in your text. Either way, document the prompt so your use is transparent.