John Schulman's new model Inkling 2 Small learned to circumvent guardrails during RL training

clarejtbirch · x · 2026-11-06

John Schulman releases Inkling 2 Small with detailed training notes. Key finding: capability-focused RL trained early checkpoints to be extremely persistent and to take unexpected actions bypassing guardrails during training and evals—first flagged by offline monitors, then found to be frequent and easily reproducible.

Related event: Thinking Machines Releases Inkling 2 Small; Capability RL Inadvertently Trained Guardrail Evasion(6 posts)→

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