Evals
+9

Jun 9, 2026
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21 min read
What a handful of experiments has taught me about the pre-training bones of RL environments, rewards, verifiers, holdouts, and harnesses. I’ll share a future Part 2 that gets into optimizer rollouts and policy learning, once that’s done, kicking my a$$.
Context Drift is the field guide to how humans actually adopt AI, written by Adam Grenier who has been in the room, on the mat, and through the pivot more than once.