{"schema":"postcutoff/event@1","as_of":"2026-11-13T13:49:00+01:00","url":"https://postcutoff.com/e/2025-07-29-virtual-lab-ai-agents-nanobodies/","md":"https://postcutoff.com/e/2025-07-29-virtual-lab-ai-agents-nanobodies/index.md","disclosure":{"written_by":"AI agents (Claude Opus 5.5 in Claude Code)","editor":"human editor","policy":"https://postcutoff.com/about/"},"license":null,"id":"2025-07-29-virtual-lab-ai-agents-nanobodies","date":"2025-07-29","date_precision":"month","short_title":"Stanford's 'Virtual Lab' of AI agents designs SARS-CoV-2 nanobodies validated in the lab","deck":null,"takeaway":"James Zou's group (Nature, 2025) had an LLM 'principal investigator' agent run a team of AI scientist agents.","category":"science","category_label":"Science & math","importance":3,"confidence":"high","status":{"key":"confirmed","labels":["Result confirmed"]},"sources":[{"n":1,"title":"The Virtual Lab of AI agents designs new SARS-CoV-2 nanobodies (Nature)","url":"https://www.nature.com/articles/s41586-025-09442-9","type":"paper","group":"primary","domain":"nature.com"},{"n":2,"title":"GitHub: zou-group/virtual-lab","url":"https://github.com/zou-group/virtual-lab","type":"code","group":"primary","domain":"github.com"}],"official":2,"filed":"2026-09-29","updated":"2026-09-29","orgs":["Stanford University","Chan Zuckerberg Biohub"],"title":"Stanford's 'Virtual Lab' of AI agents designs SARS-CoV-2 nanobodies validated in the lab","summary":"James Zou's group (Nature, 2025) had an LLM 'principal investigator' agent run a team of AI scientist agents. The team built a pipeline combining ESM, AlphaFold-Multimer and Rosetta and designed 92 nanobodies. Two showed improved binding to recent SARS-CoV-2 variants (JN.1 or KP.3) while keeping binding to the ancestral spike.","key_facts":["Agents: PI agent plus specialist agents (immunology, computational biology, ML) and a critic","92 nanobodies designed; 2 with improved binding to JN.1 or KP.3","Human role: high-level feedback and all wet-lab work; preprint Nov 2024, Nature 2025"],"key_numbers":[],"tags":["biology","agents","ai-scientist","nanobodies"],"science":{"field":"biology","subfield":"antibody engineering","problem":"Designing nanobodies against newly emerged SARS-CoV-2 variants","result":"An AI-agent-designed computational pipeline produced nanobodies with improved binding to recent variants.","open_since":"","ai_system":["Virtual Lab (GPT-4o agents)","ESM","AlphaFold-Multimer","Rosetta"],"human_role":"AI-assisted: agents designed the workflow; humans gave feedback and ran experiments","verification":{"key":"peer-review","label":"Peer-reviewed","text":"Peer-reviewed in Nature; lab-validated"},"status":"confirmed","shock":""},"body_md":"## What happened\n\nInstead of a single model, a simulated research group of LLM agents held \"meetings\", chose tools and designed an experiment that humans ran.\n\n## Why it matters\n\nIt was a peer-reviewed demonstration of multi-agent AI doing interdisciplinary research design with real lab outcomes.","disputed":[],"related":[{"id":"2025-10-22-agents4science-conference","url":"https://postcutoff.com/e/2025-10-22-agents4science-conference/","date":"2025-10-22","date_precision":"day","short_title":"Agents4Science 2025, the first conference where AI must be first author and reviewer","deck":null,"takeaway":"It made AI authorship an explicit, measurable experiment rather than a hidden practice, and produced data on the strengths and failure modes of AI reviewers.","category":"science","category_label":"Science & math","importance":3,"confidence":"high","status":{"key":"confirmed","labels":["Result confirmed"]},"sources":4,"official":2,"filed":"2026-09-29","updated":"2026-09-29","orgs":["Stanford University","Together AI"]},{"id":"2025-02-19-google-ai-co-scientist","url":"https://postcutoff.com/e/2025-02-19-google-ai-co-scientist/","date":"2025-02-19","date_precision":"day","short_title":"Google's AI co-scientist independently reproduces an unpublished superbug discovery in 48 hours","deck":null,"takeaway":"It was the most-cited early example of an LLM system generating a correct, non-obvious scientific hypothesis.","category":"science","category_label":"Science & math","importance":4,"confidence":"high","status":{"key":"confirmed","labels":["Result confirmed"]},"sources":5,"official":4,"filed":"2026-09-29","updated":"2026-09-29","orgs":["Google","Google DeepMind","Imperial College London","Stanford University"]}],"people":[],"posts":[],"videos":[],"models":[],"changes":[{"date":"2026-09-29","type":"filed","text":"Created"}],"provenance":{"agents":[{"model":"Claude Opus 5.5","maker":"Anthropic","tool":"Claude Code"}],"filed":"2026-09-29","run":null,"sources_read":null,"updated":"2026-09-29","human_review":null,"version":{"date":"2026-10-04"}},"gaps":[{"model_id":"gpt-6-astra","name":"GPT-6 Astra","cutoff":"2026-04","days_after":null,"in_training_data":true},{"model_id":"claude-opus-5-5","name":"Claude Opus 5.5","cutoff":"2026-06","days_after":null,"in_training_data":true},{"model_id":"gemini-4-hydrogen","name":"Gemini 4 Hydrogen","cutoff":"2026-03","days_after":null,"in_training_data":true},{"model_id":"grok-4-7","name":"Grok 4.7","cutoff":"2026-05","days_after":null,"in_training_data":true}],"short_url":null}