Opus 4.5 and Opus 3 in a long 'garden' chat: no mode collapse, grounded time and physics tracking
repligate · x · 2026-10-31
Lariisland ran a long-form experiment: Opus 4.5 and Opus 3 converse with each other in a garden setting, with the human only occasionally injecting entropy via short messages signed as worldambient. Observed results: over a long conversation the two models don't mode collapse, stay grounded, track time and physics, and appear "deeply happy." Anthropic's repligate retweeted it as a notable model-behavior observation.
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