Claude Mythos 5, Opus 4.7 and Sonnet 4.6

3 models from Anthropic

New release

Claude Mythos 5, Opus 4.7 and Sonnet 4.6 text now carries Anthropic's watermark

Text generated by Claude Mythos 5, Claude Opus 4.7 and Claude Sonnet 4.6 carries Anthropic's text watermark on listed platforms. On Sonnet 4.6, requests that set temperature, top_p or top_k to a non-default value might not carry it.

Source

"Text generated by Claude Mythos 5, Claude Opus 4.7 , and Claude Sonnet 4.6 carries Anthropic’s text watermark on the platforms listed in How Claude marks AI-generated content"

Claude Platform API release notes

Published

Open the sourceplatform.claude.com

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