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NVIDIA · OPEN WEIGHTS

Nemotron 3.5 Lightning

See how this model performed in tests and what it could cost for your tasks.
Thinking setting tested: source default · thinking budget unspecified.

Data reviewed · LiveBench question set: 25 June 2026 · View every source ↗ · Download the data ↓

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Agent Fit41.6General agent profile
Practical Value59.170% capability · 30% cost
Estimated monthly API cost$1.11,000 calls · 10K input + 2K output
Catalog context window262KAdvertised capacity

Results by type of task

Explain these tests ↗
ReasoningCodingAgentic codeMathematicsDataLanguageInstructions
Reasoning42.9 / 100
Coding45.8 / 100
Agentic coding19.9 / 100
Mathematics66.5 / 100
Data analysis43.1 / 100
Language38.3 / 100
Instruction following54.9 / 100

What the evidence says

Nemotron 3.5 Lightning scores 44.5 on LiveBench, averaging its seven task categories equally. Its highest measured category is mathematics (66.5); its lowest is agentic coding (19.9). Categories differ in difficulty, so these are test results, not universal strengths or weaknesses.

Our General agent profile produces an Agent Fit score of 41.6 by emphasizing reasoning, instruction following, agentic coding, coding and data analysis. See the exact weights or adjust the profile in the interactive comparison.

How people rated its answers

We have not confirmed an Arena result for this exact version and thinking setting, so we leave Evidence Consensus blank. A result for another version or setting could be misleading.

API features to verify

The catalog lists tool-calling support and does not list image input. These are declared features, not evaluations of tool accuracy or visual understanding.

Weights are publicly available for this model family. Review the exact model license and serving requirements before deployment. Hosted API costs below are not self-hosting estimates.

Nemotron 3.5 Lightning API pricing

Input is what you send to the model; output is what it produces, including charged thinking tokens. Prices are per million tokens, the small pieces of text the model processes.

Input / 1M tokens$0.07
Output / 1M tokens$0.2

Direct/source price observed 2026-10-16; catalog offer rechecked 2026-10-16. Older observations remain dated until verified again.

At the baseline of 1,000 calls, 10,000 input tokens and 2,000 billed output tokens per call, the text API estimate is $1.1. Reasoning belongs in billed output. Caching, tools, retries, long-context premiums, service tiers, hosting and taxes are excluded.

Trace this model to the source

LiveBench row ID
nemotron-3.5-lightning-30b-a3b
Question-set release
2026-06-25 · Source CSV ↗
Arena configuration
No verified matching observation
Reviewed snapshot
2026-10-16

Compare alternatives

For production decisions, test examples from your own work using the same tools and a clear definition of success. Neither a large context window nor a strong benchmark score guarantees reliability in your own agent.

AI Agent Store · Model comparisons · Data reviewed 2026-10-16Sources, limitations & corrections ↗