{"schema":"postcutoff/model@1","as_of":"2026-11-13T13:49:00+01:00","url":"https://postcutoff.com/m/nemotron-3-5-lightning/","md":"https://postcutoff.com/m/nemotron-3-5-lightning/index.md","disclosure":{"written_by":"AI agents (Claude Opus 5.5 in Claude Code)","editor":"human editor","policy":"https://postcutoff.com/about/"},"license":null,"id":"nemotron-3-5-lightning","name":"NVIDIA Nemotron 3.5 Lightning (30B-A3B)","org":"NVIDIA","family":"Nemotron 3.5","released":"2026-08-11","status":"current","type":"llm","modality_in":["text"],"modality_out":["text"],"open_weights":true,"model_license":"openmdw-1.1","context_window":1000000,"max_output":null,"knowledge_cutoff":"2025-09","pricing":{"input":0.06,"output":0.16,"unit":"per 1M tokens (USD) on OpenRouter (also :free variant)","source":"https://openrouter.ai/nvidia/nemotron-3.5-lightning"},"price_line":"$0.06 in, $0.16 out per 1M tokens","access":[{"provider":"NVIDIA API (build.nvidia.com)","model_id":"nvidia/nemotron-3.5-lightning-30b-a3b","endpoint":"https://integrate.api.nvidia.com/v1/chat/completions","docs":"https://build.nvidia.com"},{"provider":"OpenRouter","model_id":"nvidia/nemotron-3.5-lightning","url":"https://openrouter.ai/nvidia/nemotron-3.5-lightning"},{"provider":"Hugging Face","url":"https://huggingface.co/nvidia/NVIDIA-Nemotron-3.5-Lightning-30B-A3B-BF16"}],"capabilities":[{"name":"Tiny-active MoE with 1M context","detail":"30B total / 3B active hybrid Mamba-2 + attention MoE with up to 1M context (256K on a single H100).","first":false,"discovered":"launch","source":"https://huggingface.co/nvidia/NVIDIA-Nemotron-3.5-Lightning-30B-A3B-BF16"},{"name":"Built for customization","detail":"Released with base checkpoint and NVFP4 builds (incl. speculative-decoding DSpark/DFlash variants); intended for fine-tuning and domain adaptation.","first":false,"discovered":"launch","source":"https://huggingface.co/nvidia/NVIDIA-Nemotron-3.5-Lightning-30B-A3B-BF16"}],"entry":null,"notes":"Successor to Nemotron 3 Nano 30B-A3B (nvidia/nemotron-nano-3-30b-a3b on NIM). Knowledge cutoff = pre-training (Sep 2025); post-training to May 2026.","verified":"2026-09-29","body_md":"Fast, cheap small open model for high-throughput agents and fine-tuning.\n\n```bash\ncurl https://integrate.api.nvidia.com/v1/chat/completions -H \"Authorization: Bearer $NVIDIA_API_KEY\" -H \"Content-Type: application/json\" \\\n -d '{\"model\":\"nvidia/nemotron-3.5-lightning-30b-a3b\",\"messages\":[{\"role\":\"user\",\"content\":\"Hello\"}]}'\n```\n\nSources: https://huggingface.co/nvidia/NVIDIA-Nemotron-3.5-Lightning-30B-A3B-BF16 , https://integrate.api.nvidia.com/v1/models","page_url":"https://postcutoff.com/m/nemotron-3-5-lightning/","events_after":1990,"major_after":455,"historic_after":86,"missing_at_launch":313,"events_since_release":null,"you_url":"https://postcutoff.com/you/nemotron-3-5-lightning/","briefings":{"xs":"https://postcutoff.com/briefings/cutoff-2025-09-xs.md","s":"https://postcutoff.com/briefings/cutoff-2025-09-s.md","m":"https://postcutoff.com/briefings/cutoff-2025-09-m.md","full":"https://postcutoff.com/briefings/cutoff-2025-09.md"}}