# Grok-3 mini vs Llama-3.3-70B-Instruct

> Grok-3 mini is the stronger model overall, scoring 41.0 to 30.3 on the Noometry Index.

- Canonical page: https://noometry.com/compare/grok-3-mini-vs-llama-3-3-70b-instruct
- Last updated: 2026-10-10
- Shared benchmarks: 24

## Summary

- They share 24 benchmarks with published results for both. Grok-3 mini scores higher in 8 categories and Llama-3.3-70B-Instruct in 0 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in math, where Grok-3 mini leads 40.3 to 14.3.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 77.8% for Grok-3 mini and 5.1% for Llama-3.3-70B-Instruct.
- Llama-3.3-70B-Instruct has downloadable open weights; the other is API-only.

## Snapshot

| | Grok-3 mini | Llama-3.3-70B-Instruct |
|---|---|---|
| Provider | xAI | Meta |
| Noometry Index | 41.0 | 30.3 |
| Rank | 130 | 283 |
| Context | — | 128K |
| Input $/M | — | $0.10 |
| Output $/M | — | $0.32 |
| Weights | Proprietary | Open |

## Coding

- Grok-3 mini: 40.4 (#126)
- Llama-3.3-70B-Instruct: 30.6 (#284)

| Benchmark | Grok-3 mini | Llama-3.3-70B-Instruct |
|---|---|---|
| WeirdML | 42.6% | 14.4% |
| LMArena Coding | 1380 | 1268 |
| Aider Polyglot | 49.3% | — |
| SciCode | — | 26% |
| BigCodeBench Instruct | — | 46.9% |
| LiveBench Coding | — | 36.6% |
| BigCodeBench Complete | — | 57.5% |

## Agentic & Tool Use

- Grok-3 mini: —
- Llama-3.3-70B-Instruct: 25.6 (#100)

| Benchmark | Grok-3 mini | Llama-3.3-70B-Instruct |
|---|---|---|
| Berkeley Function Calling Leaderboard | — | 31.9% |
| BALROG | — | 23% |

## Reasoning

- Grok-3 mini: 13.8 (#323)
- Llama-3.3-70B-Instruct: 13.7 (#325)

| Benchmark | Grok-3 mini | Llama-3.3-70B-Instruct |
|---|---|---|
| LMArena Hard Prompts | 1374 | 1257 |
| Epoch Capabilities Index | 140.35 | 127.32 |
| ARC-AGI-2 | 0.4% | — |
| SimpleBench | — | 19.9% |
| Kagi LLM Benchmark | 61.3% | — |
| ARC-AGI-1 | 16.5% | — |
| CritPt | — | 0% |
| LiveBench Reasoning | — | 50.8% |
| DTBench | — | 59.5% |
| LiveBench Data Analysis | — | 49.5% |
| LMCA | — | 17.5% |
| ForecastBench | — | 58.6 |
| LiveBench | — | 50.2% |

## Math

- Grok-3 mini: 40.3 (#78)
- Llama-3.3-70B-Instruct: 14.3 (#292)

| Benchmark | Grok-3 mini | Llama-3.3-70B-Instruct |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 77.8% | 5.1% |
| LMArena Math | 1386 | 1268 |
| MATH Level 5 | 90.9% | 41.6% |
| Omni-MATH | 31.8% | — |
| LiveBench Math | — | 42.2% |
| FrontierMath (Feb 2025 set) | 5.9% | — |

## Knowledge

- Grok-3 mini: 46.3 (#75)
- Llama-3.3-70B-Instruct: 30.5 (#220)

| Benchmark | Grok-3 mini | Llama-3.3-70B-Instruct |
|---|---|---|
| GPQA Diamond | 76.3% | 47.4% |
| Confabulations | 10.8% | 22.8% |
| LMArena Expert | 1395 | 1225 |
| MMLU-Pro | 79.9% | — |
| Vectara Hallucination Rate | — | 4.1% |
| GPQA (HELM) | 67.5% | — |
| MMLU | — | 86.3% |

## Multilingual

- Grok-3 mini: 48.3 (#141)
- Llama-3.3-70B-Instruct: 40.1 (#215)

| Benchmark | Grok-3 mini | Llama-3.3-70B-Instruct |
|---|---|---|
| LMArena Non-English | 1352 | 1236 |
| LMArena Chinese | 1387 | 1217 |
| LMArena French | 1357 | 1280 |
| LMArena German | 1350 | 1251 |
| LMArena Japanese | 1343 | 1149 |
| LMArena Korean | 1336 | 1142 |
| LMArena Russian | 1352 | 1252 |
| LMArena Spanish | 1379 | 1269 |

## Instruction Following

- Grok-3 mini: 78.7 (#8)
- Llama-3.3-70B-Instruct: 71.3 (#152)

| Benchmark | Grok-3 mini | Llama-3.3-70B-Instruct |
|---|---|---|
| LMArena Instruction Following | 1356 | 1242 |
| LiveBench Instruction Following | — | 82.7% |
| IFEval | 95.1% | — |

## Long Context

- Grok-3 mini: 41.0 (#142)
- Llama-3.3-70B-Instruct: 26.4 (#290)

| Benchmark | Grok-3 mini | Llama-3.3-70B-Instruct |
|---|---|---|
| Fiction.LiveBench | 66.7% | 33.3% |
| LMArena Longer Query | 1372 | 1256 |

## Writing & Preference

- Grok-3 mini: 52.7 (#163)
- Llama-3.3-70B-Instruct: 47.8 (#203)

| Benchmark | Grok-3 mini | Llama-3.3-70B-Instruct |
|---|---|---|
| LMArena Text | 1370 | 1274 |
| LMArena Creative Writing | 1342 | 1250 |
| LMArena Multi-Turn | 1355 | 1279 |
| Short-Story Creative Writing | 73.5% | — |
| WildBench | 65.1% | — |
| LiveBench Language | — | 39.2% |

## FAQ

### Is Grok-3 mini better than Llama-3.3-70B-Instruct?

Grok-3 mini is the stronger model overall, scoring 41.0 to 30.3 on the Noometry Index.

### Is Grok-3 mini or Llama-3.3-70B-Instruct better for coding?

Grok-3 mini scores higher on coding benchmarks: 40.4 versus 30.6 in the Noometry coding category.

### How many benchmarks do Grok-3 mini and Llama-3.3-70B-Instruct share?

24 benchmarks have published results for both models. Grok-3 mini has 35 scored results on Noometry and Llama-3.3-70B-Instruct has 43.