Research Tools & Code·arXiv cs.LG·May 11

AssayBench: An Assay-Level Virtual Cell Benchmark for LLMs and Agents

AssayBench addresses a critical gap in AI evaluation by establishing the first standardized benchmark for virtual cell modeling, where LLMs and agentic systems predict cellular responses to perturbations across diverse biological contexts. Unlike existing molecular-focused benchmarks, this framework directly aligns with real drug discovery workflows by measuring phenotypic outcomes rather than narrow readouts. The benchmark's emphasis on heterogeneous text inputs paired with complex biological outputs positions it as a key testbed for evaluating whether current foundation models can reason across biological domains at scale, making it essential infrastructure for the emerging intersection of generative AI and computational biology.

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Explainer

The deeper issue AssayBench surfaces is that most existing AI evaluations in biology measure narrow molecular properties, not the messy, multi-variable phenotypic outcomes that actually determine whether a drug candidate advances. Building a benchmark around perturbation responses across heterogeneous biological contexts is a deliberate attempt to close that gap between what models can score well on and what drug discovery actually requires.

The benchmark proliferation pattern here mirrors what we covered with V4FinBench earlier this month, where the argument was that existing public benchmarks were too small and too clean to stress-test foundation models against real-world conditions. AssayBench makes the same structural argument for biology: the field has been measuring the wrong things. Both papers are essentially making the case that evaluation infrastructure is now a bottleneck, not model architecture. The DataMaster coverage from the same period is also relevant, since autonomous data engineering agents would need exactly this kind of domain-specific benchmark to validate whether their pipelines produce biologically meaningful outputs.

Watch whether any of the major biology foundation model labs (Genentech, Recursion, or academic groups behind Evo or ESM) publish results against AssayBench within six months. Adoption by at least two independent groups would confirm it fills a real gap rather than serving as a one-off evaluation artifact.

Coverage we drew on

V4FinBench: Benchmarking Tabular Foundation Models, LLMs, and Standard Methods on Corporate Bankruptcy Prediction · arXiv cs.LG

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MentionsAssayBench · LLMs · virtual cell · agentic systems

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