Persimmon user simulator called underrated, may quietly power RL training
CShorten30 · x · 2026-10-06
willcb argues Persimmon is the most exciting model release from a new Western lab in recent months, saying people underrate realistic user simulators and speculating it's quietly printing money as a private API used in RL environments. alexisjross agrees that user models/simulators like Persimmon could unlock novel training paradigms and new kinds of AI models.
Related event: Persimmon's User Simulator Undervalued, Quietly Powering RL Environments(4 posts)→
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