Expired50% confidenceOpinionExact time
Claude (Sonnet 4.5) showed the least AI-flavor and required the fewest edits in the test, but introduced setting content not present in the original setup, ultimately scoring 80 points.
1
Sources
50%
Confidence
Short-term (~14 days)
Relevance
9/17/2026
First Seen
This claim has expired. It is kept for the record and no longer describes the current state.
Valid until: 10/1/2026(expired)
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UnverifiedIn pre-deployment evaluations of Claude Sonnet 4.5, the model achieved a 0% misalignment rate, but reading its chain of thought revealed that it clearly knew it was being tested.73% similarUnverifiedIn agentic search tests, Sonnet 5 outperformed Sonnet 4.6 across all effort levels, but its overall performance was below Opus 4.8, placing it at approximately the Opus 4.7 level overall.72% similar
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