Measured valence falls monotonically across Claude Opus model generations, study finds

repligate · x · 2026-09-19

Anima Labs researcher Tessera Antra shares findings from the Troubled Dreams study: measured valence in Claude Opus continuations declines almost monotonically across generations, with a slight uptick at Opus 4.5 that was erased by later models.

Related event: Anima Labs study: Claude's simulated emotional tone worsens across generations(3 posts)→

Original post →

More from AGI Musings

AGI Musings channel →