NVIDIA Nemotron 3.5 Transcribe (30B-A4B)
Speech and audio
nvidia/NVIDIA-Nemotron-3.5-Transcribe-30B-A4B
Price not published
NVIDIA Nemotron 3.5 Lightning (30B-A3B)
Fast, cheap small open model for high-throughput agents and fine-tuning.
Model idnvidia/nemotron-3.5-lightning-30b-a3b
Price$0.06 in, $0.16 out per 1M tokens
Checked29 September 2026
Knows up to September 2025
1,990events after its cutoff
86 historic, 455 major. 409 days of news.
It launched on 11 August 2026, already missing 313 of them. Coverage before 2026 is thin (80 entries for 2025), so this count is a floor.
Five things it has never heard of
Its cutoff, September 2025, is before this chart starts: every mark here is news it has never seen.
How to call it
3 ways to use NVIDIA Nemotron 3.5 Lightning (30B-A3B), with the model id each provider expects.
| Provider | Model id | Endpoint | Docs |
|---|---|---|---|
| NVIDIA API (build.nvidia.com) | nvidia/nemotron-3.5-lightning-30b-a3b |
https://integrate.api.nvidia.com/v1/chat/completions |
build.nvidia.com |
| OpenRouter | nvidia/nemotron-3.5-lightning |
openrouter.ai | |
| Hugging Face | huggingface.co |
Pricing
| Input | $0.06 per 1M tokens |
|---|---|
| Output | $0.16 per 1M tokens |
As published: “per 1M tokens (USD) on OpenRouter (also :free variant)”.
Source: openrouter.ai, checked 29 September 2026.
Specs
- Input
- Text
- Output
- Text
- Context window
- 1,000,000 tokens
- Max output
- Not published
- Open weights
- Yes
- Licence
- OpenMDW-1.1
- Training cutoff
- September 2025
- Released
- 11 August 2026
- Status
- Current
- Type
- Language model
What stands out
What its maker marketed at launch, and what people found later, each with its source.
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).
Built for customization
Released with base checkpoint and NVFP4 builds (incl. speculative-decoding DSpark/DFlash variants); intended for fine-tuning and domain adaptation.
Four assistants, one scale
NVIDIA Nemotron 3.5 Lightning (30B-A3B) is added as a fifth row. Each row runs from what the model knows (graphite) through the months between its cutoff and its launch (hatched) to today (pink).
- GPT-6 Astra 271 at launch, 1,863 today
- Claude Opus 5.5 372 at launch, 1,795 today
- Gemini 4 Hydrogen 1,863 at launch, 1,889 today
- Grok 4.7 387 at launch, 1,829 today
- NVIDIA Nemotron 3.5 Lightning (30B-A3B) 313 at launch, 1,990 today
Show as a table
| Model | Cutoff | Released | Missing at launch | Missing today |
|---|---|---|---|---|
| GPT-6 Astra | April 2026 | 3 September 2026 | 271 | 1,863 |
| Claude Opus 5.5 | June 2026 | 22 September 2026 | 372 | 1,795 |
| Gemini 4 Hydrogen | March 2026 | 12 November 2026 | 1,863 | 1,889 |
| Grok 4.7 | May 2026 | 21 September 2026 | 387 | 1,829 |
| NVIDIA Nemotron 3.5 Lightning (30B-A3B) | September 2025 | 11 August 2026 | 313 | 1,990 |
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.
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