Heads up, Fable 5.1 now carries Anthropic's statistical text watermark
Summary
Anthropic has updated Fable 5.1 and Mythos 5.1 models to include a statistical text watermark for content provenance, with a tool available to check for watermarks.
Similar Articles
Anthropic’s new Fable release is cheaper, less restrictive
Anthropic has released Fable 5.1 and Mythos 5.1, cheaper and less restrictive AI models that achieve top benchmark scores and introduce enhanced privacy features for enterprise users.
@tibo_maker: this is the reason why Anthropic extended Fable 5
Anthropic has extended its Fable 5 model, as reported by tibo_maker.
@danshipper: BREAKING: Anthropic just dropped Fable 5.1—and CLAUDE IS SO BACK. We’ve spent the last week testing it at @every across…
Anthropic has released Fable 5.1, an updated Claude model that excels in coding, writing, and knowledge work, with improved speed, token efficiency, and business readiness.
@StatsWire: Claude Fable 5.1 is closer than we thought. Anthropic has started limited gray-scale testing of Fable 5.1 with some Cla…
Anthropic has started limited gray-scale testing of Claude Fable 5.1 with some users, and a wider rollout could arrive by the end of August.
Fable-5 system prompt leak (27 minute read)
A leaked system prompt for Anthropic's Claude Fable 5 model reveals internal behavior instructions and product details, including the new Mythos-class tier and various Claude products.