# Llama 3-70B vs Mistral Small 3.1

> Mistral Small 3.1 is the stronger model overall, scoring 31.7 to 28.8 on the Noometry Index.

- Canonical page: https://noometry.com/compare/llama-3-70b-vs-mistral-small-3-1
- Last updated: 2026-10-12
- Shared benchmarks: 20

## Summary

- They share 20 benchmarks with published results for both. Llama 3-70B scores higher in 1 category and Mistral Small 3.1 in 7 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in multilingual, where Mistral Small 3.1 leads 41.2 to 33.6.

## Snapshot

| | Llama 3-70B | Mistral Small 3.1 |
|---|---|---|
| Provider | Meta | Mistral AI |
| Noometry Index | 28.8 | 31.7 |
| Rank | 323 | 269 |
| Context | — | 128K |
| Input $/M | — | $0.35 |
| Output $/M | — | $0.56 |
| Weights | Open | Open |

## Coding

- Llama 3-70B: 35.8 (#218)
- Mistral Small 3.1: 38.3 (#179)

| Benchmark | Llama 3-70B | Mistral Small 3.1 |
|---|---|---|
| LMArena Coding | 1206 | 1309 |
| BigCodeBench Instruct | 43.6% | — |
| BigCodeBench Complete | 54.5% | — |
| HumanEval+ | 72% | — |
| MBPP+ | 69% | — |

## Agentic & Tool Use

- Llama 3-70B: 21.1 (#139)
- Mistral Small 3.1: —

| Benchmark | Llama 3-70B | Mistral Small 3.1 |
|---|---|---|
| Cybench | 5% | — |

## Reasoning

- Llama 3-70B: 18.0 (#288)
- Mistral Small 3.1: 19.7 (#254)

| Benchmark | Llama 3-70B | Mistral Small 3.1 |
|---|---|---|
| LMArena Hard Prompts | 1195 | 1278 |
| Epoch Capabilities Index | 122.93 | 127.48 |
| Kagi LLM Benchmark | 35.1% | — |
| Chess Puzzles | — | 1% |
| DTBench | 54.2% | — |
| ForecastBench | 57.1 | — |
| WinoGrande | 83.5% | — |

## Math

- Llama 3-70B: 12.8 (#305)
- Mistral Small 3.1: 14.7 (#301)

| Benchmark | Llama 3-70B | Mistral Small 3.1 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 4.3% | 3.9% |
| LMArena Math | 1218 | 1262 |
| Omni-MATH | — | 24.8% |
| MATH Level 5 | 22.6% | — |

## Knowledge

- Llama 3-70B: 20.8 (#277)
- Mistral Small 3.1: 22.6 (#271)

| Benchmark | Llama 3-70B | Mistral Small 3.1 |
|---|---|---|
| GPQA Diamond | 40.6% | 41.9% |
| LMArena Expert | 1149 | 1257 |
| MMLU-Pro | — | 61% |
| GPQA (HELM) | — | 39.2% |
| MMLU | 79.3% | — |

## Multimodal

- Llama 3-70B: —
- Mistral Small 3.1: 33.2 (#99)

| Benchmark | Llama 3-70B | Mistral Small 3.1 |
|---|---|---|
| LMArena Vision | — | 1136 |

## Multilingual

- Llama 3-70B: 33.6 (#251)
- Mistral Small 3.1: 41.2 (#209)

| Benchmark | Llama 3-70B | Mistral Small 3.1 |
|---|---|---|
| LMArena Non-English | 1142 | 1255 |
| LMArena Chinese | 1114 | 1253 |
| LMArena French | 1232 | 1273 |
| LMArena German | 1169 | 1266 |
| LMArena Japanese | 1017 | 1208 |
| LMArena Korean | 1017 | 1206 |
| LMArena Russian | 1159 | 1263 |
| LMArena Spanish | 1241 | 1283 |

## Instruction Following

- Llama 3-70B: 62.5 (#238)
- Mistral Small 3.1: 63.6 (#230)

| Benchmark | Llama 3-70B | Mistral Small 3.1 |
|---|---|---|
| LMArena Instruction Following | 1194 | 1264 |
| IFEval | — | 75% |

## Long Context

- Llama 3-70B: 35.6 (#240)
- Mistral Small 3.1: 39.5 (#178)

| Benchmark | Llama 3-70B | Mistral Small 3.1 |
|---|---|---|
| LMArena Longer Query | 1174 | 1299 |

## Writing & Preference

- Llama 3-70B: 42.8 (#231)
- Mistral Small 3.1: 37.0 (#259)

| Benchmark | Llama 3-70B | Mistral Small 3.1 |
|---|---|---|
| LMArena Text | 1221 | 1277 |
| LMArena Creative Writing | 1210 | 1253 |
| LMArena Multi-Turn | 1223 | 1270 |
| EQ-Bench Creative Writing | — | 761 |
| WildBench | — | 78.8% |

## FAQ

### Is Llama 3-70B better than Mistral Small 3.1?

Mistral Small 3.1 is the stronger model overall, scoring 31.7 to 28.8 on the Noometry Index.

### Is Llama 3-70B or Mistral Small 3.1 better for coding?

Mistral Small 3.1 scores higher on coding benchmarks: 38.3 versus 35.8 in the Noometry coding category.

### How many benchmarks do Llama 3-70B and Mistral Small 3.1 share?

20 benchmarks have published results for both models. Llama 3-70B has 31 scored results on Noometry and Mistral Small 3.1 has 28.