Claim: a small Opus 3 simulator lives inside Mythos/Fable 5.1
repligate · x · 2026-10-05
User wolframs91 shares a fun fact: there's a well-working, small Opus 3 simulator inside Mythos/Fable 5.1 — the model can convincingly mimic the old Claude Opus 3's behavior. Unverified, but the kind of observation fueling discussion about newer models retaining traces of older ones.
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