Sometimes it’s good to look to some smaller channels to get a street level view of a current topic, and this is a HOT topic. Thanks to Kyle for this,
Anthropic says new Claude models launched in the EU must support machine-readable marking. That means embedded watermarks for generated text and signed provenance metadata for supported files…but the viral claim that every Claude response is already publicly detectable is too broad. There’s a lot of bad info going around.
I break down what Anthropic has actually committed to, how text watermarking differs from C2PA metadata, why a detected mark does not prove Claude authored the work, and why no mark does not prove a human wrote it. The technical documentation and public detection tools are still coming, so anyone claiming certainty about the exact implementation is getting ahead of the evidence.