{"version":1,"type":"story","url":"https://digestai.news/story/schwartz-releases-bootloops-1-0-an-open-source-llm-harness-for-science","json":"https://digestai.news/story/schwartz-releases-bootloops-1-0-an-open-source-llm-harness-for-science.json","markdown":"https://digestai.news/story/schwartz-releases-bootloops-1-0-an-open-source-llm-harness-for-science.md","slug":"schwartz-releases-bootloops-1-0-an-open-source-llm-harness-for-science","headline":"Schwartz releases BootLoops 1.0, an open-source LLM harness for science","summary":"Theoretical physicist Matthew Schwartz published BootLoops 1.0 on October 1, 2026, an open-source toolkit he built with Claude to automate exact calculations in quantitative science. The project began after Anthropic released Claude Fable 5 in Summer 2026, following an earlier experiment using Claude Opus 4.5 in December 2025. Schwartz reports Claude reproduced one of his papers in 20 minutes—versus weeks of manual coding—and identified a better algorithm. BootLoops computed 30 integrals end-to-end, including 15 previously unsolved elliptic Feynman integrals, and solved a 2005 ecology equation unsolved at scale for 20 years. The toolkit also validated genetic variation data from 730,000 human exomes and 5.7 billion mutation pairs, and improved 496 economics replication packages’ runtime by over 10x while maintaining accuracy.\n\nSchwartz’s workflow runs on Google Cloud VMs, coordinating Claude Code sessions and mitigating safeguard triggers. The project produced 36 manuscripts across 18 fields in three months, with 19 coauthors. BootLoops 1.0 is released under the MIT License, with prose and figures under CC BY 4.0. Anthropic funded the project, but ownership and maintenance remain with Schwartz. The toolkit is not officially supported by Anthropic and is intended for research, not clinical or regulatory use.","keyPoints":["BootLoops 1.0 automates exact calculations in 18 fields, including physics, ecology, and genetics, using Claude Fable 5","Schwartz reports Claude solved 15 unsolved elliptic Feynman integrals and validated 730,000 human exomes in 3 months","Project funded by Anthropic but maintained independently by Schwartz under MIT License, with code validated on Linux x8664 and arm64"],"whyItMatters":"BootLoops 1.0 demonstrates how open-source LLM harnesses can accelerate frontier science by automating complex calculations, reducing research time from weeks to minutes. Its cross-disciplinary applications—from particle physics to genetics—could redefine how quantitative fields approach unsolved problems.","category":{"slug":"research","name":"Research","url":"https://digestai.news/category/research"},"entities":{"companies":["Anthropic","Google Cloud"],"models":["Claude Fable 5","Claude Opus 4.5"],"people":["Matthew D. Schwartz","Rampal Etienne","Stephen Hubbell","James O’Dwyer","Michael Desai","Isaiah Andrews"]},"firstPublishedAt":"2026-10-01T17:34:02Z","updatedAt":"2026-10-01T18:09:24Z","sourceCount":2,"hasPrimarySource":true,"sources":[{"outlet":"Unite.AI","title":"Schwartz Releases BootLoops 1.0, an Open-Source LLM Harness for Science","url":"https://unite.ai/schwartz-releases-bootloops-1-0-an-open-source-llm-harness-for-science","publishedAt":"2026-10-01T17:34:02Z","type":"press","primary":false,"lead":true},{"outlet":"anthropic.com","title":"Working on Claude-shaped problems with BootLoops, a toolkit for exact calculations in quantitative science.","url":"http://anthropic.com/research/claude-shaped-science","publishedAt":"2026-10-01T18:09:24Z","type":"primary","primary":true,"lead":false}],"sourceNotes":null,"discussions":[{"site":"Reddit","url":"https://www.reddit.com/r/singularity/comments/1wv6q8k/working_on_claudeshaped_problems_with_bootloops_a/","points":null}],"thread":null,"cite":{"text":"Digest AI, \"Schwartz releases BootLoops 1.0, an open-source LLM harness for science\", 1 October 2026, https://digestai.news/story/schwartz-releases-bootloops-1-0-an-open-source-llm-harness-for-science","publisher":"Digest AI","title":"Schwartz releases BootLoops 1.0, an open-source LLM harness for science","datePublished":"2026-10-01T17:34:02Z","url":"https://digestai.news/story/schwartz-releases-bootloops-1-0-an-open-source-llm-harness-for-science"},"generatedBy":"Written by Digest AI's editorial model from the linked sources; the sources are the record.","license":"Headlines, digests and key points are written by Digest AI and may be quoted with a link to the story page. Linked articles belong to their publishers. Terms: https://digestai.news/terms#reuse"}