{"type":"analysis","id":"analysis:nemotron-3-5-lightning-s-bf16-weights-are-the-teacher-and-the-blackwell-only","slug":"nemotron-3-5-lightning-s-bf16-weights-are-the-teacher-and-the-blackwell-only","title":"Nemotron 3.5 Lightning's BF16 weights are the teacher, and the Blackwell-only NVFP4 build is the product","description":"NVIDIA ships Lightning as two checkpoints. The BF16 weights are for tuning, and they run on the A100s and H100s teams already own. The fast deployment path is a separate NVFP4 release, a format that, by our reading of NVIDIA's support matrix, needs Blackwell to run at native speed. Most current fine-tuners therefore get the open model but not the fast one.","published_at":"2026-10-27T10:00:00.000Z","updated_at":"2026-10-27T10:00:00.000Z","record_date":"2026-10-27","topics":["trends"],"source_urls":["https://huggingface.co/nvidia/NVIDIA-Nemotron-3.5-Lightning-30B-A3B-BF16","https://forums.developer.nvidia.com/t/new-nvidias-cosmos-3-tools-simulation-specific-models-multimodal-and-multisensory-data-processing-pipelines-and-an-open-framework-for-physical-ai/386457","https://developer.nvidia.com/blog/scale-agentic-coding-workflows-with-metas-muse-spark-open-on-nvidia-gb300-nvl72","https://www.liquid.ai/blog/low-latency","https://developer.nvidia.com/blog/nvidia-nemotron-3-5-super-vl-powers-specialized-agents-with-multimodal-reasoning","https://blog.kilo.ai/p/nvidia-nemotron-3-5-lightning","https://vercel.com/changelog/nemotron-3-5-lightning-now-available-on-ai-gateway-for-free"],"language":"en","routes":{"html":"https://newruntime.com/analysis/nemotron-3-5-lightning-s-bf16-weights-are-the-teacher-and-the-blackwell-only/","markdown":"https://newruntime.com/analysis/nemotron-3-5-lightning-s-bf16-weights-are-the-teacher-and-the-blackwell-only.md","json":"https://newruntime.com/analysis/nemotron-3-5-lightning-s-bf16-weights-are-the-teacher-and-the-blackwell-only.json"},"author":{"role":"author","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"]},"editorial_provenance":{"desk":"authorial","target_ref":"story_cluster:nvidia-nemotron-3-5-lightning-model-release-eeffddf68a69","authorial_article_id":"11405be8-0690-48e0-a9eb-85d0f8610c13"},"next_reads":[{"type":"topic","path":"/topics/trends/","url":"https://newruntime.com/topics/trends/","title":"Trends","reason":"Explore the trends topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/trends.md","json_url":"https://newruntime.com/topics/trends.json"},{"type":"collection","path":"/analysis/","url":"https://newruntime.com/analysis/","title":"Analysis","reason":"Open the latest authorial analysis.","media_type":"text/html","json_url":"https://newruntime.com/analysis.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"}]}