{"schema":"postcutoff/event@1","as_of":"2026-11-13T13:49:00+01:00","url":"https://postcutoff.com/e/2025-09-12-ai-generated-phage-genomes/","md":"https://postcutoff.com/e/2025-09-12-ai-generated-phage-genomes/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":"2025-09-12-ai-generated-phage-genomes","date":"2025-09-12","date_precision":"day","short_title":"First AI-generated complete genomes","deck":"Evo models design viable bacteriophages that kill resistant E. coli","takeaway":"Brian Hie's lab used the Evo 1 and Evo 2 genome language models to generate whole ΦX174-like bacteriophage genomes.","category":"science","category_label":"Science & math","importance":5,"confidence":"high","status":{"key":"confirmed","labels":["Result confirmed"]},"sources":[{"n":1,"title":"bioRxiv: generative design of novel bacteriophages with genome language models","url":"https://www.biorxiv.org/content/10.1101/2025.09.12.675911v1","type":"paper","group":"primary","domain":"biorxiv.org"},{"n":2,"title":"Arc Institute: first AI-designed synthetic phage","url":"https://arcinstitute.org/news/hie-king-first-synthetic-phage","type":"official","group":"primary","domain":"arcinstitute.org"},{"n":3,"title":"The Cryptonomist: AI generated viral genomes yield 16 viable phages, prompting safety concerns (Oct 16)","url":"https://en.cryptonomist.ch/2026/10/16/ai-generated-viral-genomes/","type":"press","group":"press","domain":"en.cryptonomist.ch"},{"n":4,"title":"Stanford News: Evo 2 AI tool designs E. coli-killing bacteriophages (Science, Aug 2026)","url":"https://news.stanford.edu/stories/2026/08/evo-2-ai-tool-e-coli-killer-bacteriophages","type":"press","group":"press","domain":"news.stanford.edu"},{"n":5,"title":"C&EN: AI program designs new bacteriophages","url":"https://cen.acs.org/biological-chemistry/genomics/ai-program-designs-new-bacteriophages/104/web/2026/08","type":"press","group":"press","domain":"cen.acs.org"}],"official":2,"filed":"2026-09-29","updated":"2026-10-17","orgs":["Arc Institute","Stanford University"],"title":"First AI-generated complete genomes: Evo models design viable bacteriophages that kill resistant E. coli","summary":"Brian Hie's lab used the Evo 1 and Evo 2 genome language models to generate whole ΦX174-like bacteriophage genomes. Of ~285–300 synthesised designs, 16 were viable. Some rapidly overcame ΦX174-resistant E. coli, and one used an evolutionarily distant DNA-packaging protein. Preprint 12 Sep 2025; published in Science on 6 Aug 2026.","key_facts":["Generated full ~5.4 kb ΦX174-family genomes; ~285–300 synthesised, 16 viable","AI phage cocktails overcame ΦX174-resistant E. coli strains","Cryo-EM showed one phage using a packaging protein from a distant lineage","Raised biosecurity discussion about generative design of self-replicating agents","Biosecurity debate (The Cryptonomist, Oct 16, 2026, summarizing): Johns Hopkins Center for Health Security specialists wrote that 'The ability to compose viral genomes using generative AI now exists; the governance to safely steer it does not' and urged that work on viruses infecting eukaryotes not be pursued; Jordi García Ojalvo (Pompeu Fabra) judged this experiment lower-risk because each genome needs individual lab testing and the viable yield was low (16 of about 300 designs built). The Johns Hopkins piece itself was not read"],"key_numbers":[],"tags":["biology","genomics","synthetic-biology","evo","biosecurity"],"science":{"field":"biology","subfield":"synthetic biology / virology","problem":"Designing entire functional genomes, not just single genes or proteins","result":"First viable organisms (bacteriophages) whose complete genomes were designed by a generative AI model.","open_since":"","ai_system":["Evo 1","Evo 2"],"human_role":"Human-led with AI tools: humans set constraints, synthesised and tested genomes","verification":{"key":"peer-review","label":"Peer-reviewed","text":"Peer-reviewed in Science (2026); lab-validated"},"status":"confirmed","shock":"AI designed whole, working genomes of replicating biological entities, some with gene combinations unlike any natural phage."},"body_md":"## What happened\n\nThe team prompted genome language models to write complete phage genomes, synthesised hundreds, and found 16 that infected and killed bacteria, including strains resistant to the natural phage.\n\n## Why it matters\n\nIt is a milestone toward AI-designed life forms and phage therapies against resistant bacteria, and a biosecurity flashpoint.","disputed":[],"related":[{"id":"2025-02-19-evo-2-genome-model","url":"https://postcutoff.com/e/2025-02-19-evo-2-genome-model/","date":"2025-02-19","date_precision":"day","short_title":"Evo 2: a 40B-parameter genome language model trained on DNA from all domains of life","deck":null,"takeaway":"It made genome-scale generative design possible, most notably whole viable bacteriophages.","category":"science","category_label":"Science & math","importance":3,"confidence":"high","status":{"key":"confirmed","labels":["Result confirmed"]},"sources":2,"official":1,"filed":"2026-09-29","updated":"2026-09-29","orgs":["Arc Institute","Stanford University","NVIDIA"]}],"people":[],"posts":[],"videos":[],"models":[],"changes":[{"date":"2026-10-17","type":"edit","text":"Biosecurity reactions (Johns Hopkins CHS, García Ojalvo) via The Cryptonomist"},{"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":"2026-10-17","human_review":null,"version":{"date":"2026-10-17"}},"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":"https://postcutoff.com/s/first-ai-generated-complete"}