Some Claude text now carries a watermark
As of November 3, text from Claude Mythos 5, Opus 4.7, and Sonnet 4.6 carries Anthropic's text watermark on the platforms named in its marking guide. On Sonnet 4.6, a non-default temperature, top_p, or top_k may skip the mark.
- Verdict
- Watch Promising, but something is missing: access, pricing, or proof.
- For
- people publishing text from the named Claude models
- Why it matters
- Text from Claude Mythos 5, Opus 4.7, and Sonnet 4.6 can carry a watermark. A non-default sampling setting on Sonnet 4.6 may skip it.
- Next check
- Recheck the marking guide if you need to know whether a specific setting still applies the mark.
- Published
- Filed
- By
- The Loaded Tokens desk
- Topic
- Models
Sources & limits: This is our recap, not a copy of the original. The links above are the pages we read. We didn't test it ourselves.
Corrections: if a fact is wrong, email hello@loadedtokens.com.