How to cite Claude (Anthropic)
Quick answer
Cite Anthropic as the author, include the model version (Opus/Sonnet/Haiku), the date of the conversation, and note non-retrievability.
Why this one is tricky
Like other LLMs, Claude generates unique output per session. Readers can't verify the exact response.
Example (APA 7)
Anthropic. (2024). Claude (Sonnet 4.5) [Large language model]. https://claude.ai/
Most common mistake
Treating a Claude response as if it were a static web page with a stable URL.
Citing Claude (Anthropic) more than once?
Use the free Citation Generator for a single reference, or upload your whole .docx to DEEPNOTIS to handle every tricky citation at once.
Last updated: 5 May 2026