{"type":"post","id":"modernizing-40-year-old-scientific-code-with-gemini-e59cbf","slug":"modernizing-40-year-old-scientific-code-with-gemini-e59cbf","title":"Modernizing 40-year-old scientific code with Gemini 4 Argon","description":"Google says an Antigravity agent running Gemini 4 Argon migrated the core of FVCOM, a 174,000-line scientific codebase, from Fortran into memory-safe Rust in a 59-minute run.","retrieval_nugget":"Google says an Antigravity agent running Gemini 4 Argon migrated the core of FVCOM, a 174,000-line scientific codebase, from Fortran into memory-safe Rust in a 59-minute run. The company reports matching numerical outputs, six bugs found, half the memory use and simulations 1.88 times faster, and has released the workflow as an open-source skill; these remain vendor-reported results.","published_at":"2026-11-04","updated_at":"2026-11-04","record_date":"2026-11-04","date_kind":"published_at","topics":["google","gemini"],"entities":["Google","Google Antigravity","Gemini 4 Argon","FVCOM","Dan Gruhl","Prashant Nair"],"related_patterns":["harness-architecture-outlives-model-choice"],"novelty_label":"new_fact","what_changed":"Google reports Argon migrated a 174,000-line Fortran ocean model to memory-safe Rust in 59 minutes and released the workflow as an open-source skill.","prior_refs":["memory:0e10c4db-737c-8de6-a38f-9545394c298e","memory:c158f6c2-f795-8b4a-acd4-a64408af8d53"],"source_url":"https://antigravity.google/blog/modernizing-40-year-old-scientific-code-with-gemini-4-argon","source_urls":["https://antigravity.google/blog/modernizing-40-year-old-scientific-code-with-gemini-4-argon"],"schema_version":"newruntime-agent-readable-v0.2","stable_id":"post:modernizing-40-year-old-scientific-code-with-gemini-e59cbf","status":"published","visuals":[],"editor":{"role":"editor","name":"Andrey Reshetnikov","profile":"https://newruntime.com/owner-profile.md","profile_json":"https://newruntime.com/owner-profile.json","same_as":["https://www.linkedin.com/in/reshetnikov1/","https://t.me/lapetuse"]},"routes":{"html":"https://newruntime.com/posts/modernizing-40-year-old-scientific-code-with-gemini-e59cbf/","markdown":"https://newruntime.com/posts/modernizing-40-year-old-scientific-code-with-gemini-e59cbf.md","json":"https://newruntime.com/posts/modernizing-40-year-old-scientific-code-with-gemini-e59cbf.json"},"next_reads":[{"type":"topic","path":"/topics/google/","url":"https://newruntime.com/topics/google/","title":"Google","reason":"Explore the google topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/google.md","json_url":"https://newruntime.com/topics/google.json"},{"type":"topic","path":"/topics/gemini/","url":"https://newruntime.com/topics/gemini/","title":"Gemini","reason":"Explore the gemini topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/gemini.md","json_url":"https://newruntime.com/topics/gemini.json"},{"type":"collection","path":"/posts/","url":"https://newruntime.com/posts/","title":"Field Notes","reason":"Open the latest editorial analysis.","media_type":"text/html","json_url":"https://newruntime.com/posts.json"},{"type":"collection","path":"/source-ledger.json","url":"https://newruntime.com/source-ledger.json","title":"Source Ledger","reason":"Inspect the public source evidence graph.","media_type":"application/json"}]}