# Llama 3.1-70B vs Mistral Small 3

> Mistral Small 3 is the stronger model overall, scoring 30.9 to 29.4 on the Noometry Index.

- Canonical page: https://noometry.com/compare/llama-3-1-70b-vs-mistral-small-3
- Last updated: 2026-10-10
- Shared benchmarks: 22

## Summary

- They share 22 benchmarks with published results for both. Llama 3.1-70B scores higher in 4 categories and Mistral Small 3 in 4 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in coding, where Mistral Small 3 leads 36.0 to 29.8.
- Mistral Small 3 is cheaper at $0.05 / $0.08 per million input/output tokens, against $0.40 / $0.40 for Llama 3.1-70B.
- Llama 3.1-70B accepts more context: 128K tokens versus 33K.

## Snapshot

| | Llama 3.1-70B | Mistral Small 3 |
|---|---|---|
| Provider | Meta | Mistral AI |
| Noometry Index | 29.4 | 30.9 |
| Rank | 299 | 268 |
| Context | 128K | 33K |
| Input $/M | $0.40 | $0.05 |
| Output $/M | $0.40 | $0.08 |
| Weights | Open | Open |

## Coding

- Llama 3.1-70B: 29.8 (#292)
- Mistral Small 3: 36.0 (#203)

| Benchmark | Llama 3.1-70B | Mistral Small 3 |
|---|---|---|
| BigCodeBench Instruct | 46.1% | 45.3% |
| LMArena Coding | 1260 | 1246 |
| BigCodeBench Complete | 54.8% | 50.4% |
| WeirdML | 9% | — |

## Agentic & Tool Use

- Llama 3.1-70B: 24.9 (#104)
- Mistral Small 3: —

| Benchmark | Llama 3.1-70B | Mistral Small 3 |
|---|---|---|
| TheAgentCompany | 6.9% | — |
| BALROG | 27.9% | — |

## Reasoning

- Llama 3.1-70B: 20.8 (#215)
- Mistral Small 3: 18.2 (#269)

| Benchmark | Llama 3.1-70B | Mistral Small 3 |
|---|---|---|
| LMArena Hard Prompts | 1241 | 1233 |
| Epoch Capabilities Index | 125.91 | 127.06 |
| Chess Puzzles | — | 0% |
| DTBench | 60% | — |
| LMCA | 14.8% | — |

## Math

- Llama 3.1-70B: 12.7 (#298)
- Mistral Small 3: 15.3 (#290)

| Benchmark | Llama 3.1-70B | Mistral Small 3 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 3.6% | 6.7% |
| LMArena Math | 1252 | 1240 |
| Omni-MATH | 21% | — |
| MATH Level 5 | 36.7% | — |

## Knowledge

- Llama 3.1-70B: 24.1 (#264)
- Mistral Small 3: 25.0 (#258)

| Benchmark | Llama 3.1-70B | Mistral Small 3 |
|---|---|---|
| GPQA Diamond | 44.2% | 47.3% |
| LMArena Expert | 1209 | 1202 |
| MMLU-Pro | 65.3% | — |
| Confabulations | — | 25.2% |
| GPQA (HELM) | 42.6% | — |
| MMLU | 80.1% | — |

## Multilingual

- Llama 3.1-70B: 38.9 (#220)
- Mistral Small 3: 37.5 (#231)

| Benchmark | Llama 3.1-70B | Mistral Small 3 |
|---|---|---|
| LMArena Non-English | 1219 | 1198 |
| LMArena Chinese | 1215 | 1204 |
| LMArena French | 1260 | 1202 |
| LMArena German | 1222 | 1211 |
| LMArena Japanese | 1132 | 1111 |
| LMArena Korean | 1140 | 1188 |
| LMArena Russian | 1234 | 1216 |
| LMArena Spanish | 1253 | — |

## Instruction Following

- Llama 3.1-70B: 65.5 (#218)
- Mistral Small 3: 63.9 (#224)

| Benchmark | Llama 3.1-70B | Mistral Small 3 |
|---|---|---|
| LMArena Instruction Following | 1231 | 1214 |
| IFEval | 82.1% | — |

## Long Context

- Llama 3.1-70B: 37.6 (#208)
- Mistral Small 3: 37.8 (#206)

| Benchmark | Llama 3.1-70B | Mistral Small 3 |
|---|---|---|
| LMArena Longer Query | 1241 | 1246 |

## Writing & Preference

- Llama 3.1-70B: 35.6 (#262)
- Mistral Small 3: 32.4 (#275)

| Benchmark | Llama 3.1-70B | Mistral Small 3 |
|---|---|---|
| LMArena Text | 1261 | 1234 |
| LMArena Creative Writing | 1232 | 1195 |
| EQ-Bench Creative Writing | 784 | 707 |
| LMArena Multi-Turn | 1256 | 1217 |
| WildBench | 75.8% | — |

## FAQ

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

Mistral Small 3 is the stronger model overall, scoring 30.9 to 29.4 on the Noometry Index.

### Which is cheaper, Llama 3.1-70B or Mistral Small 3?

Mistral Small 3 is cheaper. It lists at $0.05 per million input tokens and $0.08 per million output tokens; Llama 3.1-70B lists at $0.40 and $0.40.

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

Mistral Small 3 scores higher on coding benchmarks: 36.0 versus 29.8 in the Noometry coding category.

### Which has the bigger context window?

Llama 3.1-70B does, with 128K tokens against 33K.

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

22 benchmarks have published results for both models. Llama 3.1-70B has 35 scored results on Noometry and Mistral Small 3 has 24.