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Research2026-08-18 · source-backed
100 real frontier research tasks across seven scientific domains, full lifecycle, 800 annotated trajectories, 45-pattern failure taxonomy (arXiv 2608.14905). The headline isn't a leaderboard, it's a shared deficit: agents can't check what they produced against what they found, revise when it doesn't hold, or question whether the path was sound. Held across all 8 harness-model combos including the strongest models. That points at a model-level limitation, not a scaffolding one, which means a better harness will not patch it.
Each link below shares sources, entities, or timing with this story.
Shared entities / Same source / Shared topic
Both cover AutoResearchEval, Held; cite the same source (arXiv 2608.14905); overlapping topics (against, agent, check, doesn, harness).
Same source domain / Shared topic / Tension
Reported by the same outlet (arxiv.org); overlapping topics (against, agent, frontier, model); pushes against this story (against).
Reported by the same outlet (arxiv.org); overlapping topics (against, agent, frontier, model); pushes against this story (against).
Same source domain / Shared topic
Reported by the same outlet (arxiv.org); overlapping topics (agent, check, frontier, harness, model).
Same source domain / Shared topic / Tension / Downstream implication
Reported by the same outlet (arxiv.org); overlapping topics (against, check); pushes against this story (against).
Same source domain / Shared topic / Tension
Reported by the same outlet (arxiv.org); overlapping topics (against, agent, better); pushes against this story (against).
Reported by the same outlet (arxiv.org); overlapping topics (against, agent, doesn); pushes against this story (against).
Reported by the same outlet (arxiv.org); overlapping topics (against, agent, found); pushes against this story (against).