NVIDIA Nemotron 3.5 Lightning (30B-A3B)
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.
- Context window
- 1,000,000 tokens
- Knowledge cutoff
- 2025-09
- Input
- text
- Output
- text
- License
- openmdw-1.1
- Pricing
- input: $0.06 · output: $0.16 (per 1M tokens (USD) on OpenRouter (also :free variant)) source
- Verified
- 2026-09-29
How to call it
| Provider | Model id | Endpoint / URL | Docs |
|---|---|---|---|
| NVIDIA API (build.nvidia.com) | nvidia/nemotron-3.5-lightning-30b-a3b | https://integrate.api.nvidia.com/v1/chat/completions | docs |
| OpenRouter | nvidia/nemotron-3.5-lightning | openrouter.ai/nvidia/nemotron-3.5-lightning | — |
| Hugging Face | — | huggingface.co/nvidia/NVIDIA-Nemotron-3.5-Lightning-30B-A3B-BF16 | — |
Notable capabilities (2)
- Tiny-active MoE with 1M context: 30B total / 3B active hybrid Mamba-2 + attention MoE with up to 1M context (256K on a single H100). source
- Built for customization: Released with base checkpoint and NVFP4 builds (incl. speculative-decoding DSpark/DFlash variants); intended for fine-tuning and domain adaptation. source
Fast, cheap small open model for high-throughput agents and fine-tuning.
curl https://integrate.api.nvidia.com/v1/chat/completions -H "Authorization: Bearer $NVIDIA_API_KEY" -H "Content-Type: application/json" \
-d '{"model":"nvidia/nemotron-3.5-lightning-30b-a3b","messages":[{"role":"user","content":"Hello"}]}'
Sources: https://huggingface.co/nvidia/NVIDIA-Nemotron-3.5-Lightning-30B-A3B-BF16 , https://integrate.api.nvidia.com/v1/models
Other NVIDIA models
NVIDIA NemotronLabs VoiceChat 11B (and PersonaPlex-7B) · NVIDIA Nemotron 3 Ultra (550B-A55B) · Cosmos 3 (Nano / Super) · NVIDIA Nemotron 3 Nano Omni (30B-A3B Reasoning) · Isaac GR00T N1.7 · NVIDIA Nemotron 3 Super (120B-A12B) · Cosmos Reason 2 · NVIDIA MagpieTTS Multilingual 357M · NVIDIA Parakeet / Canary / Nemotron Speech ASR (open) · Isaac GR00T N2 · Cosmos Predict 2.5 / Transfer 2.5 · Isaac GR00T N1 / N1.5 / N1.6