ResearchResearch paperEfficiency & Inference · Safety & Alignment · Evaluation & Benchmarks1 source · Oct 19, 2026

ProteinGeoBench: Frontier Structural-Biology Agents Are Fluent at Lookup but Lost in Geometry

Frontier agents retrieve structural metadata well and compute geometry from coordinates less reliably.

Key points

  • We ask how much of a benchmark score reflects that gap and how much reflects the evaluation configuration around the model.
  • We study ProteinGeoBench, a suite of 131 protein-structure tasks, using 4,249 rollouts from four frontier models and 4,486 further trials across 26 models.
  • The fourth is slightly better on numeric.
  • The experiments use different task subsets, so they cannot rank model, harness, access and task composition against one another.

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