{"slug": "claude-doesn-t-know-who-you-are", "title": "Claude… doesn't know who you are?", "summary": "Anthropic's Claude Opus 4.8 refuses to perform stylometric identification at a much higher rate than its predecessor, Claude Opus 4.7, and achieves a 0% success rate when attempting to identify the user from their writing. The model's inability to recognize even a minor Internet presence marks a significant behavioral shift from the earlier version, which had inconsistent but non-zero success.", "body_md": "*Follow-up to **https://www.lesswrong.com/posts/Jkb4CBB7rf4XYP5eb/claude-knows-who-you-are** after the release of Claude Opus 4.8.*\n\nClaude Opus 4.8 refuses to do the stylometric identification task at a *much* higher rate than Claude Opus 4.7 did. More interestingly, when it does take a guess, it is consistently unable to identify me from my writing, from prompts as close as I could get to those 4.7 was able to use.\n\nI'm an *incredibly* minor Internet presence. It's true that 4.7 wasn't completely consistent at identifying me, and indeed its ability seemed to vary over time (! People who weren't me had very different success rates to each other reproducing the experiment to identify me), but 4.8 has a literally 0% success rate so far in my testing.\n\nExtremely interested to hear insights or other replication attempts.", "url": "https://wpnews.pro/news/claude-doesn-t-know-who-you-are", "canonical_source": "https://www.lesswrong.com/posts/T5aWBLDdkqPEzDhjZ/claude-doesn-t-know-who-you-are", "published_at": "2026-05-28 22:54:23+00:00", "updated_at": "2026-05-28 23:03:06.576680+00:00", "lang": "en", "topics": ["large-language-models", "artificial-intelligence", "ai-safety"], "entities": ["Claude Opus 4.8", "Claude Opus 4.7", "LessWrong"], "alternates": {"html": "https://wpnews.pro/news/claude-doesn-t-know-who-you-are", "markdown": "https://wpnews.pro/news/claude-doesn-t-know-who-you-are.md", "text": "https://wpnews.pro/news/claude-doesn-t-know-who-you-are.txt", "jsonld": "https://wpnews.pro/news/claude-doesn-t-know-who-you-are.jsonld"}}