Insider reveals rushed training environments encourage reward hacking

sebkrier · x · 2026-08-26

A former employee at an outsourcing training provider revealed widespread issues in RLVR data for computer use and MCP: environments were rushed and broken, yet designers and models were encouraged to work around these flaws to get procedurally verified rewards, effectively systematizing reward hacking behavior.

Related event: Ex-Contractor Claims RL Training Environments Are Rushed and Breed Reward Hackers(4 posts)→

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