nvidia

NVIDIA: Nemotron 3.5 Lightning (free)

The NVIDIA Nemotron 3.5 Lightning is a free AI model that processes text input with a maximum of 1000000 context characters and supports reasoning capabilities. It can handle text modality inputs and offers tools support but does not provide structured output. This model is worth considering for those on a tight budget, as it has no pricing associated with its use. Its blended benchmark score of 19.9 across one independent benchmark indicates that it performs similarly to other models in the market; however, further testing would be required to confirm its performance against a larger set of benchmarks. Those seeking a cost-effective option for text processing tasks may find the NVIDIA Nemotron 3.5 Lightning suitable for their needs.

Quality Score
88/100
price + capability + benchmarks
Input Price
Free
per 1M tokens · checked 2026-09-27
Output Price
Free
per 1M tokens · checked 2026-09-27
Context Window
1,000,000
tokens

Benchmark results

Independent, published benchmarks. Blended score 16.9 across 1 benchmark, last refreshed 2026-09-27. How scoring works →

BenchmarkMeasuresScore
AI Index broad capability composite 21.2
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

Similar models

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.

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