Nemotron 3.5 Lightning 30B A3B
Summary
Nemotron 3.5 Lightning 30B A3B is an open-weight language model from NVIDIA, released on 11 Aug 2026. It accepts text and generates text, with a 262K-token context window and up to 131K output tokens per response. As of 4 Oct 2026, the lowest listed API price is $0.06 per million input tokens and $0.17 per million output tokens (OpenRouter), across 5 providers we track.
Nemotron model for efficient reasoning, coding, and specialized AI agents
Last verified 4 Oct 2026. Every figure on this page links to its source.
Specifications
| Developer | NVIDIA |
|---|---|
| Release date | 11 Aug 2026 [models.dev] |
| Status | Generally available [models.dev] |
| Weights | Open weights [Hugging Face] |
| License | openmdw-1.1 [Hugging Face] |
| Parameters | 31.6B [Hugging Face] |
| Context window | 262K (262,144 tokens) [models.dev] |
| Max output | 131K tokens [models.dev] |
| Input | Text [models.dev] |
| Output | Text [models.dev] |
| Reasoning mode | Yes [models.dev] |
| Tool calling | Yes [models.dev] |
| Structured output | Yes [models.dev] |
| Hugging Face | nvidia/NVIDIA-Nemotron-3.5-Lightning-30B-A3B-BF16 [Hugging Face] |
Nemotron 3.5 Lightning 30B A3B API pricing by provider
USD per million tokens. Sorted by input price.
| Provider | Input | Output | Cached input | Context | Source |
|---|---|---|---|---|---|
| NVIDIA NIM nvidia/nemotron-3.5-lightning-30b-a3b | Free | Free | – | 262K | models.dev, 4 Oct 2026 |
| Fireworks AI accounts/fireworks/models/nemotron-lightning-3p5-30b-a3b | $0.05 | $0.20 | $0.01 | 262K | models.dev, 4 Oct 2026 |
| Vercel AI Gateway nvidia/nemotron-3.5-lightning | $0.05 | $0.20 | $0.01 | 262K | models.dev, 4 Oct 2026 |
| OpenRouter nvidia/nemotron-3.5-lightning | $0.06 | $0.17 | $0.03 | 262K | OpenRouter, 4 Oct 2026 |
| Nebius AI Studio nvidia/Nemotron-3_5-Lightning | $0.06 | $0.24 | $0.06 | 1M | models.dev, 4 Oct 2026 |
Frequently asked questions
What is the context window of Nemotron 3.5 Lightning 30B A3B?
Nemotron 3.5 Lightning 30B A3B has a context window of 262,144 tokens (262K) and can generate up to 131,072 tokens in a single response, according to models.dev.
How much does the Nemotron 3.5 Lightning 30B A3B API cost?
Nemotron 3.5 Lightning 30B A3B is listed from $0.06 per million input tokens and $0.17 per million output tokens (OpenRouter). Prices last verified 4 Oct 2026.
Is Nemotron 3.5 Lightning 30B A3B open source?
Nemotron 3.5 Lightning 30B A3B is an open-weight model: its weights are published on Hugging Face as nvidia/NVIDIA-Nemotron-3.5-Lightning-30B-A3B-BF16 under the openmdw-1.1 license. Check the license terms before commercial use.
When was Nemotron 3.5 Lightning 30B A3B released?
NVIDIA released Nemotron 3.5 Lightning 30B A3B on 11 Aug 2026, according to models.dev.
Which providers offer Nemotron 3.5 Lightning 30B A3B?
We track Nemotron 3.5 Lightning 30B A3B on 5 providers: NVIDIA NIM, Fireworks AI, Vercel AI Gateway, OpenRouter, Nebius AI Studio.
Change history
No changes detected since we started tracking this model. We re-check every source daily.
Sources
- https://openrouter.ai/nvidia/nemotron-3.5-lightning
- https://github.com/sst/models.dev/blob/dev/providers/openrouter/models/nvidia/nemotron-3.5-lightning.toml
- https://huggingface.co/nvidia/NVIDIA-Nemotron-3.5-Lightning-30B-A3B-BF16
- https://github.com/sst/models.dev/blob/dev/providers/nvidia/models/nvidia/nemotron-3.5-lightning-30b-a3b.toml
- https://github.com/sst/models.dev/blob/dev/providers/fireworks-ai/models/accounts/fireworks/models/nemotron-lightning-3p5-30b-a3b.toml
- https://github.com/sst/models.dev/blob/dev/providers/vercel/models/nvidia/nemotron-3.5-lightning.toml
- https://github.com/sst/models.dev/blob/dev/providers/nebius/models/nvidia/Nemotron-3_5-Lightning.toml