The Decoder· Matthias Bastian·· 6 h ago
Anthropic's watermark rollout leaves a loophole on two older Claude models
Anthropic's watermark rollout leaves a loophole on two older Claude models
AI summary
Anthropic is expanding its text watermark to four more Claude models to meet the EU AI Act's December deadline. On the older models Claude Opus 4.6 and Sonnet 4.6, developers can bypass the watermark by tweaking a single sampling parameter. Anthropic addresses the loophole with just a compliance warning.
Selection record
Threshold 76Media and individualsFirst 58Second 58
Not admittedSum of both 116 < twice the threshold 152
- Source tier
- Media and individuals; this tier's threshold is 76
- Pre-filter
- passed：Anthropic为Claude模型部署文本水印，属AI模型功能与合规
A model scores each item twice, independently, against one written standard, out of 100. An item is admitted only when the two scores add up to twice the threshold. The threshold is set per source tier.
Source: The Decoder · the-decoder.com