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The Commit-Abstain Circuit: Why Language Models Hallucinate Instead of Abstaining
Mechanistic analysis reveals a Commit-Abstain Circuit where early commitment signals overpower later abstention corrections, causing hallucinations; training on its activations improves abstention accuracy by 12.2 points.
Sydney Poster Session 2, Tue, Dec 8, 5:00 PM–8:00 PM, Hall 1-4 · Published 2026
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AI panel: 17 of 20 reviewers recommend it
lenient 4/5
medium 9/10
strict 4/5