Insiders: new lab model Persimmon may be quietly monetized as an RL user simulator
gharik · x · 2026-10-06
willcb argues Persimmon is the most exciting model release from a new Western lab in recent months (behind jev), and that people are underrating the value of great realistic user simulators — speculating it runs as a private API used inside RL environments.
gharik boosted the post, adding that it would be cool to RL a model against persimmon.
Key takeaway: user simulators as agent RL environments may be an underappreciated business and training infrastructure play. (Speculation, unverified.)
Related event: Persimmon's User Simulator Undervalued, Quietly Powering RL Environments(4 posts)→
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