# Grok 4.3 vs MiniMax-M3

> Grok 4.3 and MiniMax-M3 score almost the same on the Noometry Index (43.8 vs 43.8), so choose on price, context window or the category you care about most.

- Canonical page: https://noometry.com/compare/grok-4-3-vs-minimax-m3
- Last updated: 2026-10-10
- Shared benchmarks: 33

## Summary

- They share 33 benchmarks with published results for both. Grok 4.3 scores higher in 3 categories and MiniMax-M3 in 7 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in multimodal, where MiniMax-M3 leads 40.2 to 31.6.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 93.3% for Grok 4.3 and 71.1% for MiniMax-M3.
- MiniMax-M3 is cheaper at $0.30 / $1.20 per million input/output tokens, against $1.25 / $2.50 for Grok 4.3.
- MiniMax-M3 has downloadable open weights; the other is API-only.

## Snapshot

| | Grok 4.3 | MiniMax-M3 |
|---|---|---|
| Provider | xAI | MiniMax |
| Noometry Index | 43.8 | 43.8 |
| Rank | 86 | 85 |
| Context | 1M | 1M |
| Input $/M | $1.25 | $0.30 |
| Output $/M | $2.50 | $1.20 |
| Weights | Proprietary | Open |

## Coding

- Grok 4.3: 41.6 (#121)
- MiniMax-M3: 41.8 (#118)

| Benchmark | Grok 4.3 | MiniMax-M3 |
|---|---|---|
| LMArena WebDev | 1357 | 1482 |
| SciCode | 47.3% | 47.1% |
| LMArena Coding | 1415 | 1469 |
| ALE-Bench | 944.17 | 640.02 |
| FrontierCode | — | 14.7% |
| WeirdML | 49.9% | — |

## Agentic & Tool Use

- Grok 4.3: 27.7 (#99)
- MiniMax-M3: 22.6 (#130)

| Benchmark | Grok 4.3 | MiniMax-M3 |
|---|---|---|
| Vending-Bench 2 | 35.26 | 2,158 |
| APEX-Agents | — | 37.7% |
| OSWorld 2.0 | — | 4.6% |
| GBAEval | — | 0.9% |
| GDP.pdf | 8% | — |
| LMArena Search | 1165 | — |

## Reasoning

- Grok 4.3: 35.9 (#68)
- MiniMax-M3: 30.1 (#87)

| Benchmark | Grok 4.3 | MiniMax-M3 |
|---|---|---|
| NYT Connections (extended) | 55.2% | 65.1% |
| CritPt | 8% | 3.7% |
| Chess Puzzles | 25% | 14% |
| LMArena Hard Prompts | 1396 | 1447 |
| DTBench | 90.7% | 78.9% |
| LMCA | 38.3% | 33.7% |
| Epoch Capabilities Index | 149.16 | 146.95 |
| ForecastBench | 60.3 | 61.4 |
| SimpleBench | — | 45.8% |
| Mystery Game Puzzles | — | 8% |
| Surface Evolver Bench | — | 55% |

## Math

- Grok 4.3: 46.0 (#74)
- MiniMax-M3: 40.0 (#95)

| Benchmark | Grok 4.3 | MiniMax-M3 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 93.3% | 71.1% |
| ProofBench | 11% | 18% |
| LMArena Math | 1388 | 1429 |
| FrontierMath (Tiers 1-3) | 42.8% | — |
| FrontierMath Tier 4 | 14.6% | — |

## Knowledge

- Grok 4.3: 52.5 (#62)
- MiniMax-M3: 58.4 (#35)

| Benchmark | Grok 4.3 | MiniMax-M3 |
|---|---|---|
| GPQA Diamond | 88.8% | 90.9% |
| LMArena Expert | 1385 | 1461 |
| SimpleQA Verified | 33.2% | — |

## Multimodal

- Grok 4.3: 31.6 (#104)
- MiniMax-M3: 40.2 (#51)

| Benchmark | Grok 4.3 | MiniMax-M3 |
|---|---|---|
| LMArena Vision | 1229 | 1253 |
| Blueprint-Bench 2 | 0% | — |
| LMArena Document | — | 1435 |

## Multilingual

- Grok 4.3: 50.5 (#120)
- MiniMax-M3: 53.0 (#75)

| Benchmark | Grok 4.3 | MiniMax-M3 |
|---|---|---|
| LMArena Non-English | 1385 | 1420 |
| LMArena Chinese | 1422 | 1463 |
| LMArena French | 1412 | 1447 |
| LMArena German | 1395 | 1426 |
| LMArena Japanese | 1379 | 1381 |
| LMArena Korean | 1356 | 1372 |
| LMArena Russian | 1399 | 1428 |
| LMArena Spanish | 1398 | 1432 |

## Instruction Following

- Grok 4.3: 72.1 (#140)
- MiniMax-M3: 75.5 (#62)

| Benchmark | Grok 4.3 | MiniMax-M3 |
|---|---|---|
| LMArena Instruction Following | 1366 | 1433 |

## Long Context

- Grok 4.3: 42.5 (#123)
- MiniMax-M3: 44.2 (#72)

| Benchmark | Grok 4.3 | MiniMax-M3 |
|---|---|---|
| LMArena Longer Query | 1393 | 1445 |

## Writing & Preference

- Grok 4.3: 58.5 (#118)
- MiniMax-M3: 62.1 (#83)

| Benchmark | Grok 4.3 | MiniMax-M3 |
|---|---|---|
| LMArena Text | 1397 | 1433 |
| LMArena Creative Writing | 1380 | 1404 |
| EQ-Bench 4 | 1075 | 1150 |
| LMArena Multi-Turn | 1406 | 1442 |

## FAQ

### Is Grok 4.3 better than MiniMax-M3?

Grok 4.3 and MiniMax-M3 score almost the same on the Noometry Index (43.8 vs 43.8), so choose on price, context window or the category you care about most.

### Which is cheaper, Grok 4.3 or MiniMax-M3?

MiniMax-M3 is cheaper. It lists at $0.30 per million input tokens and $1.20 per million output tokens; Grok 4.3 lists at $1.25 and $2.50.

### Is Grok 4.3 or MiniMax-M3 better for coding?

They score almost the same on coding (41.6 vs 41.8); test both on your own repository before choosing.

### Which has the bigger context window?

Both accept 1M tokens.

### How many benchmarks do Grok 4.3 and MiniMax-M3 share?

33 benchmarks have published results for both models. Grok 4.3 has 40 scored results on Noometry and MiniMax-M3 has 41.