nvidia
NVIDIA: Nemotron 3 Ultra (free)
The Nemotron 3 Ultra is an AI model developed by NVIDIA that handles text input modality and supports both reasoning and tools functionality. It has a high context length of 1 million tokens and can generate up to 65,536 completion tokens. Considering its free pricing and respectable benchmark score of 39.6, the Nemotron 3 Ultra may be worth shortlisting for users who prioritize cost-effectiveness in their AI model selection. However, its performance across multiple benchmarks is unproven due to a coverage rate of only 1 independent benchmark.
Quality Score
88/100
price + capability + benchmarks
Input Price
Free
per 1M tokens · checked 2026-10-13
Output Price
Free
per 1M tokens · checked 2026-10-13
Context Window
1,000,000
tokens
Benchmark results
Independent, published benchmarks. Blended score 35.5 across 1 benchmark, last refreshed 2026-10-13. How scoring works →
| Benchmark | Measures | Score |
|---|---|---|
| AI Index | broad capability composite | 37.8 |
- Model ID
- nvidia/nemotron-3-ultra-550b-a55b:free
- Vendor
- nvidia
- Released
- June 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
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NVIDIA: Nemotron 3.5 Lightning (free)
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1,000,000 ctx
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NVIDIA: Nemotron 3 Super (free)
Free
262,144 ctx
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NVIDIA: Nemotron 3.5 Content Safety
$0.20 in / $0.20 out
131,072 ctx
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NVIDIA: Nemotron 3 Ultra
$0.60 in / $2.40 out
262,144 ctx
98
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NVIDIA: Nemotron 3 Super
$0.08 in / $0.45 out
262,144 ctx
99
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NVIDIA: Nemotron 3 Nano 30B A3B
$0.06 in / $0.24 out
262,144 ctx
99
Quick answers
- Is NVIDIA: Nemotron 3 Ultra (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 Ultra (free)'s context window?
- 1,000,000 tokens, roughly 1,500 pages of text in a single request.
- Does NVIDIA: Nemotron 3 Ultra (free) support tool calling?
- It supports tool calling, a reasoning mode.
- Can NVIDIA: Nemotron 3 Ultra (free) process images?
- No, it is text-only on the input side.