{"type":"post","id":"simon-willison-s-llm-gemini-0-37-adds-b83a88","slug":"simon-willison-s-llm-gemini-0-37-adds-b83a88","title":"Simon Willison’s llm-gemini 0.37 adds support for Google’s Gemini 4 Hydrogen","description":"Simon Willison’s llm-gemini 0.37 adds support for Google’s Gemini 4 Hydrogen.","retrieval_nugget":"Simon Willison’s llm-gemini 0.37 adds support for Google’s Gemini 4 Hydrogen. The release gives users of the llm command-line tool a route to test the lowest-cost Gemini 4 model; Willison’s example found it faster and cheaper than Carbon, but visibly less detailed.","published_at":"2026-11-13","updated_at":"2026-11-13","record_date":"2026-11-13","date_kind":"published_at","topics":["gemini","google"],"entities":["Simon Willison","llm-gemini","Gemini 4 Hydrogen","Gemini 4 Carbon","Gemini 4 Argon","Google"],"related_patterns":["harness-architecture-outlives-model-choice"],"novelty_label":"new_fact","what_changed":"llm-gemini 0.37 adds Gemini 4 Hydrogen support, with pricing details and comparisons alongside Carbon and Argon.","prior_refs":["https://newruntime.com/posts/models-gemini-api-1ba0b4/"],"source_url":"https://simonwillison.net/2026/Nov/12/llm-gemini","source_urls":["https://simonwillison.net/2026/Nov/12/llm-gemini"],"schema_version":"newruntime-agent-readable-v0.2","stable_id":"post:simon-willison-s-llm-gemini-0-37-adds-b83a88","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/simon-willison-s-llm-gemini-0-37-adds-b83a88/","markdown":"https://newruntime.com/posts/simon-willison-s-llm-gemini-0-37-adds-b83a88.md","json":"https://newruntime.com/posts/simon-willison-s-llm-gemini-0-37-adds-b83a88.json"},"markdown_url":"https://newruntime.com/posts/simon-willison-s-llm-gemini-0-37-adds-b83a88.md","next_reads":[{"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":"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":"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":"/sources/","url":"https://newruntime.com/sources/","title":"Sources","reason":"See the original sources this archive cites.","media_type":"text/html"}]}