Opus 5.5 is a first RSI model
This is a AI post classified by Jev as Frontier models (a model release), kept by the AI Radar because it carries real work, not commentary.
Opus 5.5 is a first RSI model trained off a much bigger teacher, probably Model-2 Mythos, then distilled from Anthropic’s internal Ant teacher. that’s why it's smaller and cheaper Fable-level output at 40% less cost makes sense now can't wait for Google's now....
Posted by Harshith (3.9k followers) 1 h ago · 22 likes · 989 views · view the original post on X. Kept by the AI Radar as Frontier models.
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