nvidia
NVIDIA: Nemotron 3.5 Lightning (free)
NVIDIA's Nemotron 3.5 Lightning is a text-focused AI model capable of handling extensive contexts up to one million tokens and supports reasoning and tools integration. While it doesn’t offer structured output or open weights, it excels in natural language processing tasks with a benchmark blended score of 34.6 across three independent tests. Given its free price point for both input and output, this model is ideal for users seeking cost-effective solutions for text-based applications where reasoning and tool integration are beneficial.
Quality Score
88/100
price + capability + benchmarks
Input Price
Free
per 1M tokens
Output Price
Free
per 1M tokens
Context Window
1,000,000
tokens
Benchmark results
Independent, published benchmarks. Blended score 34.6 across 3 benchmarks, last refreshed 2026-08-13. How scoring works →
| Benchmark | Measures | Score |
|---|---|---|
| AI Index | broad capability composite | 39.0 |
| AI Index Coding | software engineering tasks | 44.2 |
| AI Index Agentic | multi-step tool-using tasks | 22.9 |
- Model ID
- nvidia/nemotron-3.5-lightning:free
- Vendor
- nvidia
- Released
- August 2026
- Tokenizer
- Other
- Input Modalities
- text
- Output Modalities
- text
- Max Output
- 65,536 tokens
- Tool Calling
- ✓ supported
- Structured Output
- not supported
- Reasoning Mode
- ✓ supported
- Vision
- text only
- Audio
- no
- Moderated
- no
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Quick answers
- Is NVIDIA: Nemotron 3.5 Lightning (free) free to use?
- Yes. It is currently listed at no cost per token via OpenRouter, subject to provider rate limits.
- What is NVIDIA: Nemotron 3.5 Lightning (free)'s context window?
- 1,000,000 tokens, roughly 1,500 pages of text in a single request.
- Does NVIDIA: Nemotron 3.5 Lightning (free) support tool calling?
- It supports tool calling, a reasoning mode.
- Can NVIDIA: Nemotron 3.5 Lightning (free) process images?
- No, it is text-only on the input side.