NVIDIA, open weights

# Llama 3.1 Nemotron 51b Instruct

> Llama 3.1 Nemotron 51b Instruct by NVIDIA. Ranked #222 of 354 with a Noometry Index of 35.9. Scores, sources and comparisons.
- Canonical page: https://noometry.com/models/llama-3-1-nemotron-51b-instruct
- Last updated: 2026-10-10
- Title: Llama 3.1 Nemotron 51b Instruct Benchmarks, Price & Rank (October 2026)

Llama 3.1 Nemotron 51b Instruct by NVIDIA ranks 222nd of 354 ranked models on the Noometry Index as of October 2026, with a score of 35.9. Its strongest category is reasoning, where it ranks 177th.

Last verified October 10, 2026

## Specifications

- **Noometry rank:** #222 of 354
- **Index score:** 35.9
- **Evidence:** Confirmed 12 results
- **Provider:** [![](/logos/nvidia.svg) NVIDIA](https://noometry.com/providers/nvidia)
- **Released:** Unknown
- **Weights:** Open weights
- **Reasoning:** Unknown
- **Context window:** —
- **Max output:** —
- **Input price:** Not listed
- **Output price:** Not listed
- **Blended price:** Not listed
- **Output speed:** Not measured
- **Value:** Not ranked
- **Knowledge cutoff:** Unknown

## Category scores

Each category score combines every public result we have in that category.

Llama 3.1 Nemotron 51b Instruct category scores

1.  Coding 35.6
2.  Reasoning 23.5
3.  Math 34.6
4.  Knowledge 31.9
5.  Multilingual 36.1
6.  Instruction Following 62.9
7.  Long Context 36.5
8.  Writing & Preference 43.4
9.  020406080

Llama 3.1 Nemotron 51b Instruct category ranks
| Category | Score | Rank | Results |
| --- | --- | --- | --- |
| [Coding](https://noometry.com/best/coding) | 35.6 | #222 | 1 |
| [Reasoning](https://noometry.com/best/reasoning) | 23.5 | #177 | 1 |
| [Math](https://noometry.com/best/math) | 34.6 | #193 | 1 |
| [Knowledge](https://noometry.com/best/knowledge) | 31.9 | #218 | 1 |
| [Multilingual](https://noometry.com/best/multilingual) | 36.1 | #241 | 1 |
| [Instruction Following](https://noometry.com/best/instruction-following) | 62.9 | #233 | 1 |
| [Long Context](https://noometry.com/best/long-context) | 36.5 | #230 | 1 |
| [Writing & Preference](https://noometry.com/best/writing) | 43.4 | #229 | 3 |

## Strengths and weaknesses

Categories where Llama 3.1 Nemotron 51b Instruct places highest and lowest among the models ranked in each, with its score against that category's median.

### Strongest categories

Llama 3.1 Nemotron 51b Instruct: strongest categories
| Category | Score | vs median | Rank |
| --- | --- | --- | --- |
| [Reasoning](https://noometry.com/best/reasoning) | 23.5 | −0.1 | #177 of 350, top 51% |
| [Math](https://noometry.com/best/math) | 34.6 | −1.9 | #193 of 327, top 60% |
| [Coding](https://noometry.com/best/coding) | 35.6 | −3.1 | #222 of 340, top 66% |

### Weakest categories

Llama 3.1 Nemotron 51b Instruct: weakest categories
| Category | Score | vs median | Rank |
| --- | --- | --- | --- |
| [Multilingual](https://noometry.com/best/multilingual) | 36.1 | −11.3 | #241 of 297, top 82% |
| [Long Context](https://noometry.com/best/long-context) | 36.5 | −4.4 | #230 of 296, top 78% |
| [Instruction Following](https://noometry.com/best/instruction-following) | 62.9 | −8.3 | #233 of 305, top 77% |

## Closest competitors

The models ranked just above and below Llama 3.1 Nemotron 51b Instruct. When scores are this close, price and speed are often the better way to choose.

Models ranked closest to Llama 3.1 Nemotron 51b Instruct
| Model | Rank | Score | Blended $/M | Speed |  |
| --- | --- | --- | --- | --- | --- |
| [Mistral Medium](https://noometry.com/models/mistral-medium) | #218 | 36.3 | $3 | 68 | [Compare](https://noometry.com/compare/llama-3-1-nemotron-51b-instruct-vs-mistral-medium) |
| [GPT-4.1](https://noometry.com/models/gpt-4-1) | #219 | 35.9 | $3.50 | 116 | [Compare](https://noometry.com/compare/gpt-4-1-vs-llama-3-1-nemotron-51b-instruct) |
| [Deepseek Coder v2](https://noometry.com/models/deepseek-coder-v2) | #220 | 35.9 | — | — | [Compare](https://noometry.com/compare/deepseek-coder-v2-vs-llama-3-1-nemotron-51b-instruct) |
| [C4ai Aya Expanse 32b](https://noometry.com/models/c4ai-aya-expanse-32b) | #221 | 35.9 | — | — | [Compare](https://noometry.com/compare/c4ai-aya-expanse-32b-vs-llama-3-1-nemotron-51b-instruct) |
| [Nemotron 4 340b Instruct](https://noometry.com/models/nemotron-4-340b-instruct) | #223 | 35.9 | — | — | [Compare](https://noometry.com/compare/llama-3-1-nemotron-51b-instruct-vs-nemotron-4-340b-instruct) |
| [Llama 3.1 Tulu 3 8b](https://noometry.com/models/llama-3-1-tulu-3-8b) | #224 | 35.7 | — | — | [Compare](https://noometry.com/compare/llama-3-1-nemotron-51b-instruct-vs-llama-3-1-tulu-3-8b) |
| [Qwen3 14B](https://noometry.com/models/qwen3-14b) | #225 | 35.5 | $0.61 | 79 | [Compare](https://noometry.com/compare/llama-3-1-nemotron-51b-instruct-vs-qwen3-14b) |
| [DeepSeek-R1-Distill-Qwen-32B](https://noometry.com/models/deepseek-r1-distill-qwen-32b) | #226 | 35.5 | — | — | [Compare](https://noometry.com/compare/deepseek-r1-distill-qwen-32b-vs-llama-3-1-nemotron-51b-instruct) |

Sponsored placements are available on pages like this one. [Advertise on Noometry](https://noometry.com/advertise)

## Benchmark results

Every published result we track, with its source. Bold rows are the ones used for ranking; where several exist we prefer independent runs over self-reported numbers.

### Coding

Llama 3.1 Nemotron 51b Instruct Coding benchmark results
| Benchmark | Score | Position | Setting | Source | Date |
| --- | --- | --- | --- | --- | --- |
| [LMArena Coding](https://noometry.com/benchmarks/arena-coding) | 1223 | #232 of 294, top 79% |  | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-08 |

### Reasoning

Llama 3.1 Nemotron 51b Instruct Reasoning benchmark results
| Benchmark | Score | Position | Setting | Source | Date |
| --- | --- | --- | --- | --- | --- |
| [LMArena Hard Prompts](https://noometry.com/benchmarks/arena-hard-prompts) | 1203 | #235 of 297, top 80% |  | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-08 |

### Math

Llama 3.1 Nemotron 51b Instruct Math benchmark results
| Benchmark | Score | Position | Setting | Source | Date |
| --- | --- | --- | --- | --- | --- |
| [LMArena Math](https://noometry.com/benchmarks/arena-math) | 1230 | #223 of 285, top 79% |  | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-08 |

### Knowledge

Llama 3.1 Nemotron 51b Instruct Knowledge benchmark results
| Benchmark | Score | Position | Setting | Source | Date |
| --- | --- | --- | --- | --- | --- |
| [LMArena Expert](https://noometry.com/benchmarks/arena-expert) | 1167 | #233 of 273, top 86% |  | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-08 |

### Multilingual

Llama 3.1 Nemotron 51b Instruct Multilingual benchmark results
| Benchmark | Score | Position | Setting | Source | Date |
| --- | --- | --- | --- | --- | --- |
| [LMArena Non-English](https://noometry.com/benchmarks/arena-non-english) | 1181 | #241 of 297, top 82% |  | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-08 |
| [LMArena Chinese](https://noometry.com/benchmarks/arena-chinese) | 1180 | #241 of 285, top 85% |  | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-08 |
| [LMArena Russian](https://noometry.com/benchmarks/arena-russian) | 1187 | #241 of 283, top 86% |  | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-08 |

### Instruction Following

Llama 3.1 Nemotron 51b Instruct Instruction Following benchmark results
| Benchmark | Score | Position | Setting | Source | Date |
| --- | --- | --- | --- | --- | --- |
| [LMArena Instruction Following](https://noometry.com/benchmarks/arena-instruction-following) | 1201 | #235 of 298, top 79% |  | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-08 |

### Long Context

Llama 3.1 Nemotron 51b Instruct Long Context benchmark results
| Benchmark | Score | Position | Setting | Source | Date |
| --- | --- | --- | --- | --- | --- |
| [LMArena Longer Query](https://noometry.com/benchmarks/arena-longer-query) | 1205 | #240 of 291, top 83% |  | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-08 |

### Writing & Preference

Llama 3.1 Nemotron 51b Instruct Writing & Preference benchmark results
| Benchmark | Score | Position | Setting | Source | Date |
| --- | --- | --- | --- | --- | --- |
| [LMArena Text](https://noometry.com/benchmarks/arena-text) | 1228 | #233 of 297, top 79% |  | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-08 |
| [LMArena Creative Writing](https://noometry.com/benchmarks/arena-creative-writing) | 1213 | #225 of 295, top 77% |  | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-08 |
| [LMArena Multi-Turn](https://noometry.com/benchmarks/arena-multi-turn) | 1227 | #228 of 295, top 78% |  | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-08 |

## Compare Llama 3.1 Nemotron 51b Instruct

-   [Llama 3.1 Nemotron 51b Instruct vs C4ai Aya Expanse 32b](https://noometry.com/compare/c4ai-aya-expanse-32b-vs-llama-3-1-nemotron-51b-instruct)
-   [Llama 3.1 Nemotron 51b Instruct vs Nemotron 4 340b Instruct](https://noometry.com/compare/llama-3-1-nemotron-51b-instruct-vs-nemotron-4-340b-instruct)
-   [Llama 3.1 Nemotron 51b Instruct vs Deepseek Coder v2](https://noometry.com/compare/deepseek-coder-v2-vs-llama-3-1-nemotron-51b-instruct)
-   [Llama 3.1 Nemotron 51b Instruct vs Llama 3.1 Tulu 3 8b](https://noometry.com/compare/llama-3-1-nemotron-51b-instruct-vs-llama-3-1-tulu-3-8b)
-   [Llama 3.1 Nemotron 51b Instruct vs GPT-4.1](https://noometry.com/compare/gpt-4-1-vs-llama-3-1-nemotron-51b-instruct)
-   [Llama 3.1 Nemotron 51b Instruct vs Qwen3 14B](https://noometry.com/compare/llama-3-1-nemotron-51b-instruct-vs-qwen3-14b)
-   [Llama 3.1 Nemotron 51b Instruct vs GPT-6 Astra](https://noometry.com/compare/gpt-6-astra-vs-llama-3-1-nemotron-51b-instruct)
-   [Llama 3.1 Nemotron 51b Instruct vs Claude Fable 5.1](https://noometry.com/compare/claude-fable-5-1-vs-llama-3-1-nemotron-51b-instruct)
-   [Llama 3.1 Nemotron 51b Instruct vs Gemini 3.8 Flash](https://noometry.com/compare/gemini-3-8-flash-vs-llama-3-1-nemotron-51b-instruct)
-   [Llama 3.1 Nemotron 51b Instruct vs Kimi K3](https://noometry.com/compare/kimi-k3-vs-llama-3-1-nemotron-51b-instruct)
-   [Llama 3.1 Nemotron 51b Instruct vs Grok 4.6](https://noometry.com/compare/grok-4-6-vs-llama-3-1-nemotron-51b-instruct)
-   [Llama 3.1 Nemotron 51b Instruct vs Qwen3.8 Max](https://noometry.com/compare/llama-3-1-nemotron-51b-instruct-vs-qwen3-8-max)
-   [Llama 3.1 Nemotron 51b Instruct vs GLM-5.3](https://noometry.com/compare/glm-5-3-vs-llama-3-1-nemotron-51b-instruct)
-   [Llama 3.1 Nemotron 51b Instruct vs Muse Spark 1.3](https://noometry.com/compare/llama-3-1-nemotron-51b-instruct-vs-muse-spark-1-3)

## Other NVIDIA models

-   [Nemotron 3 Ultra](https://noometry.com/models/nemotron-3-ultra)42.5
-   [Nemotron 3 Nano 30B A3B](https://noometry.com/models/nemotron-3-nano-30b-a3b)40.6
-   [Nvidia Llama 3.3 Nemotron Super 49b v1.5](https://noometry.com/models/nvidia-llama-3-3-nemotron-super-49b-v1-5)40.3
-   [Nemotron 3 Super](https://noometry.com/models/nemotron-3-super)40.1
-   [Llama 3.3 Nemotron 49b Super v1](https://noometry.com/models/llama-3-3-nemotron-49b-super-v1)40.1
-   [Nemotron 3.5 Lightning](https://noometry.com/models/nemotron-3-5-lightning)40.0
-   [Llama 3.1 Nemotron 70b Instruct](https://noometry.com/models/llama-3-1-nemotron-70b-instruct)37.6
-   [Llama 3.1 Nemotron Ultra 253b v1](https://noometry.com/models/llama-3-1-nemotron-ultra-253b-v1)36.7

## Frequently asked questions

### How good is Llama 3.1 Nemotron 51b Instruct?

Llama 3.1 Nemotron 51b Instruct by NVIDIA ranks 222nd of 354 ranked models on the Noometry Index as of October 2026, with a score of 35.9. Its strongest category is reasoning, where it ranks 177th.

### Is Llama 3.1 Nemotron 51b Instruct open source?

Yes. Llama 3.1 Nemotron 51b Instruct's weights are downloadable; check the license for commercial terms.

### What are Llama 3.1 Nemotron 51b Instruct's strengths and weaknesses?

Relative to other ranked models, Llama 3.1 Nemotron 51b Instruct places best in reasoning, math, coding and lowest in multilingual, long context, instruction following.

### What is Llama 3.1 Nemotron 51b Instruct best at?

Its best category is reasoning, where it ranks 177th on Noometry.

### Cite this page

Noometry. (2026). Llama 3.1 Nemotron 51b Instruct benchmarks and pricing. Retrieved October 10, 2026, from https://noometry.com/models/llama-3-1-nemotron-51b-instruct

Quote Noometry with a link back to this page. It is also available in [Markdown](https://noometry.com/md/models/llama-3-1-nemotron-51b-instruct.md).