Complete the Claude thinking supplement: Fable 5 and Sonnet 5 runs - #141
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Adds the POLICYBENCH_CHUNK_OVERRIDE=none escape hatch (test-locked, default untouched) so the chunked Claudes' sensitivity runs share the canonical whole-scenario shape, and extends sensitivity/claude-thinking-2026-08.md to all three thinking-by-default models. With tool_choice auto: Fable 5 scores 86.9 weighted exact versus 79.9 on the board (would rank second, at $0.323/household versus its $0.541 chunked board run), Opus 5 85.6 versus 79.8 (third), and Sonnet 5 80.2 versus 69.4 (+10.8, the largest delta, with 56 of 1,984 answers failing to parse under auto and scored as misses). Fable and Sonnet deltas combine de-chunking with thinking; Opus 5's isolates thinking. All three prediction sets are attached to the dashboard-data-20260805 release. The leaderboard is unchanged. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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🤖 Generated with Claude Code