{"type":"post","id":"fern-3-minute-read-64d096","slug":"fern-3-minute-read-64d096","title":"Fern (3 minute read)","description":"Mirendil has announced Fern, its first language-model family, led by Fern 0.1 with support for up to 10 million tokens of context.","retrieval_nugget":"Mirendil has announced Fern, its first language-model family, led by Fern 0.1 with support for up to 10 million tokens of context. The company frames it as a model for high-volume agentic work, but access is still pending and the announcement leaves key operational and evaluation questions unanswered.","published_at":"2026-10-27","updated_at":"2026-10-27","record_date":"2026-10-27","date_kind":"published_at","topics":["models","context-engineering"],"entities":["Mirendil","Fern","Fern 0.1","Mirendil-Base","Mirendil-Base-Large","Mirendil-Base-XL","RULER","Megatron-LM"],"related_patterns":[],"novelty_label":"new_fact","what_changed":"Mirendil’s new Fern model supports up to 10M tokens of context, far beyond the prior report of GPT 6.1 Sol’s 500k-token default window.","prior_refs":["memory:6e1bf4ad-cc39-8af8-a4c2-677afa34e6c1"],"source_url":"https://mirendil.com/news/introducing-fern","source_urls":["https://mirendil.com/news/introducing-fern"],"schema_version":"newruntime-agent-readable-v0.2","stable_id":"post:fern-3-minute-read-64d096","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/fern-3-minute-read-64d096/","markdown":"https://newruntime.com/posts/fern-3-minute-read-64d096.md","json":"https://newruntime.com/posts/fern-3-minute-read-64d096.json"},"next_reads":[{"type":"topic","path":"/topics/models/","url":"https://newruntime.com/topics/models/","title":"Models","reason":"Explore the models topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/models.md","json_url":"https://newruntime.com/topics/models.json"},{"type":"topic","path":"/topics/context-engineering/","url":"https://newruntime.com/topics/context-engineering/","title":"Context Engineering","reason":"Explore the context-engineering topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/context-engineering.md","json_url":"https://newruntime.com/topics/context-engineering.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"}]}