{"type":"post","id":"built-on-rumodernbert-base-with-three-stage-training-9166f4","slug":"built-on-rumodernbert-base-with-three-stage-training-9166f4","title":"Built on RuModernBERT-base with three-stage training: RetroMAE, weakly supervised, then supervised fine-tuning.","description":"DeepVK’s RuModernBERT-base is a 150-million-parameter, encoder-only ModernBERT variant trained on roughly two trillion Russian, English, and code tokens.","retrieval_nugget":"DeepVK’s RuModernBERT-base is a 150-million-parameter, encoder-only ModernBERT variant trained on roughly two trillion Russian, English, and code tokens. For teams building Russian-language retrieval, classification, or entity-extraction systems, its long 8,192-token context and a tokenizer patch make it a concrete model to evaluate rather than a general-purpose chat-model replacement.","published_at":"2026-10-27","updated_at":"2026-10-27","record_date":"2026-10-27","date_kind":"published_at","topics":["models","open-models"],"entities":["DeepVK","RuModernBERT-base","RuModernBERT-small","ModernBERT","Hugging Face","Russian Super Glue","RuMTEB","Encodechka"],"related_patterns":[],"novelty_label":"new_fact","what_changed":"Introduces RuModernBERT-base and its three-stage training method; none of the prior documents cover this model.","prior_refs":[],"source_url":"https://huggingface.co/deepvk/RuModernBERT-base","source_urls":["https://huggingface.co/deepvk/RuModernBERT-base"],"schema_version":"newruntime-agent-readable-v0.2","stable_id":"post:built-on-rumodernbert-base-with-three-stage-training-9166f4","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/built-on-rumodernbert-base-with-three-stage-training-9166f4/","markdown":"https://newruntime.com/posts/built-on-rumodernbert-base-with-three-stage-training-9166f4.md","json":"https://newruntime.com/posts/built-on-rumodernbert-base-with-three-stage-training-9166f4.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/open-models/","url":"https://newruntime.com/topics/open-models/","title":"Open Models","reason":"Explore the open-models topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/open-models.md","json_url":"https://newruntime.com/topics/open-models.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"}]}