How to Cite Claude in Harvard (Cite Them Right)
Learn how to cite Claude chats and other Anthropic AI output in Harvard format (Cite Them Right). This guide includes the reference list format, in-text citation examples, and key formatting rules.
Harvard Reference List Format
Here is the standard Harvard format for citing Claude in your reference list:
Anthropic Claude (Year) Claude model response to Your Name, Day Month. Available at: https://claude.ai/share/… (Accessed: Day Month Year).
Harvard Example for Claude
A complete Harvard reference for Claude, written by hand and checked against the official Harvard guidance for this source:
Anthropic Claude (2025) Claude Sonnet 4 response to APA Style team, 20 May. Available at: https://claude.ai/share/329173b2-ec93-4663-ac68-4f65ea4f166d (Accessed: 18 October 2026).
Matching in-text citation: When asked which grammar topics a student should understand by the end of high school, Claude Sonnet 4 (Anthropic Claude, 2025) produced the list reproduced in Appendix 1.
Harvard In-Text Citation
Use one of these formats when referencing this source within your paper:
Parenthetical
(Anthropic Claude, 2025)
Narrative
Anthropic Claude (2025) lists the grammar topics a student should understand by graduation.
Key Harvard Formatting Rules
- Cite Them Right treats an AI chat as a personal communication: the name of the AI (company, then tool), the year, the response, the person who prompted it, and the day and month.
- Write Anthropic Claude, not Claude alone, in the author position, following Cite Them Right’s OpenAI ChatGPT pattern.
- For a chat only you can see, stop after the day and month; when you have a public claude.ai/share link, university guides add Available at: and an accessed date so readers can open it.
- Describe the prompt in your sentence and put the full prompt and Claude’s reply in an appendix, as Cite Them Right recommends for content readers cannot retrieve.
- Cite Them Right’s full set of AI examples (13th edition) is in Cite Them Right Online; check your library’s copy if your department sets a stricter form.
Step-by-Step Guide
- Gather source information: Collect the author name, title, publication date, and URL or DOI for your Claude.
- Format the reference: Arrange the elements following the Harvard (Cite Them Right) template shown above.
- Create the in-text citation: Add a parenthetical or narrative citation in your paper where you reference this source.
- Add to your reference list: Include the full formatted citation at the end of your paper.
- Double-check formatting: Verify italics, punctuation, capitalization, and hanging indents match Harvard requirements.
Evidence and review notes
Worked examples on this page are written by hand from the style's own published guidance and checked against it, because the general CSL styles do not encode this source's rules. Editorial guidance and sources in this section were reviewed on 2026-08-14.
Metadata to collect
- the company that built the tool (Anthropic)
- the model shown in the chat, such as Claude Sonnet 4
- the date of the conversation
- the chat title Claude assigned or you set
- the exact prompt you typed
- the public claude.ai/share link
Common metadata traps
- A claude.ai/chat/ address in your browser bar is private to your account; only the link created with the Share button (claude.ai/share/…) opens for readers.
- A Claude share link is a snapshot of the conversation when you shared it, so messages you add later will not appear unless you share again and cite the new link.
- Claude names its models by family and version (Sonnet 4, Opus 4.1), and APA’s own posts write them inconsistently, so copy the model name exactly as the chat displays it.
Frequently Asked Questions
- How do I cite Claude in Harvard?
- To cite Claude in Harvard (Cite Them Right), include the author, title, date, and source location. Use our free citation generator for automatic formatting.
- What is the Harvard format for Claude citation?
- The Harvard format for Claude is: Anthropic Claude (Year) Claude model response to Your Name, Day Month. Available at: https://claude.ai/share/… (Accessed: Day Month Year).
- What does the in-text citation look like for Claude in Harvard?
- In Harvard, the in-text citation for the example above is (Anthropic Claude, 2025)
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