AI agents keep getting better at biology, but knowing when their scientific work deserves trust is a different problem. LatchBio co-founder and CTO Kenny Workman walks through how his company moved from biotech data infrastructure to benchmarking biological agents, starting with spatial biology and expanding into single-cell work, epigenetics, whole-genome sequencing and drug discovery. Speaking at a Greylock symposium, he explains why longer-horizon tasks matter and what would have to be true for AI systems to run substantial research autonomously.