Why Your Deep Research Agent Fails? On Hallucination Evaluation in Full Research Trajectory

arXiv:2601.22984 · cs.AI · Submitted 2026-01-30 · Read on arXiv

cs.AI

Submitted: 2026-01-30

Updated: 2026-10-01

Terminology

• Hallucination — 6× in this paper · explained in 4 episodes
• Adversarial scenarios — 1× in this paper · explained in 1 episode
• Benchmark — 1× in this paper · explained in 2 episodes
• Grounding — 1× in this paper · explained in 3 episodes
• Trace — 1× in this paper · explained in 2 episodes
• Verification — 1× in this paper · explained in 2 episodes

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