Snorkel audit: ~55% of Terminal-Bench dataset fixes had reward hacking or over-prescriptiveness issues

ajratner · x · 2026-10-21

SnorkelAI audited @preferencemodel's findings against Terminal-Bench-related datasets using its internal QC platform. While agreeing with many findings, the team found 55% of the proposed fixes had their own issues with reward hacking or over-prescriptiveness, and 40% of reported issues were already tracked upstream — including 21 tasks with outstanding fix PRs.

The takeaway from ajratner and rebeccatqian: building datasets and maintaining ambitious open benchmarks is hard, attacking systems is easier than defending them, and reviewing is easier than fixing — open, collaborative review with maintainers and domain experts is required to get it right.

Related event: Snorkel audit finds reward hacking in TerminalBench data fixes(2 posts)→

Original post →

More from Research

Research channel →