What it is

Claude is Anthropic’s AI assistant. For PMs the relevant facts are: it holds very long context (you can paste a whole discovery doc, six interview transcripts, and a competitor’s changelog in one go), it’s strong at structured writing, and Projects let you keep a standing PRD template and company context so every draft starts from your house style.

Our verdict

Our default for anything document-shaped. It writes the most usable first-draft PRDs of the tools we tested — coherent structure, sensible acceptance criteria, and it flags open questions instead of confidently inventing answers. Artifacts give you a live, editable doc beside the chat, which beats copy-pasting out of a chat log.

Where it falls short: no built-in web browsing depth for fresh competitive facts unless you turn on search, and like every LLM it will pad a PRD with plausible-sounding scope you didn’t ask for — you have to cut, not just accept. It also has no native integration with PM tools like Jira or Linear, so it’s a drafting surface, not a system of record.

Get value in 10 minutes

Create a Project called “PRDs” and drop your team’s PRD template + a paragraph on your product into the Project knowledge.
Start a chat and paste your rough idea plus any constraints (“mobile-only, ships this quarter, no new backend”).
Use this prompt: “Draft a PRD using the template in project knowledge. Mark every place you made an assumption with [ASSUMPTION] and list the top 5 open questions at the end. Do not invent metrics.”
Answer the open questions in your own words, then ask Claude to fold your answers back in. You’ll have a reviewable draft faster than you’d have finished the problem statement by hand.