# Grok 4.20 Multi-Agent vs Mixtral 8x7B

> Grok 4.20 Multi-Agent is the stronger model overall, scoring 46.2 to 27.1 on the Noometry Index. Mixtral 8x7B costs 2.2× less per token, which makes it the better buy when Grok 4.20 Multi-Agent's lead doesn't matter for your workload.

- Canonical page: https://noometry.com/compare/grok-4-20-multi-agent-vs-mixtral-8x7b
- Last updated: 2026-10-12
- Shared benchmarks: 17

## Summary

- They share 17 benchmarks with published results for both. Grok 4.20 Multi-Agent scores higher in 8 categories and Mixtral 8x7B in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Grok 4.20 Multi-Agent leads 64.0 to 34.2.
- Mixtral 8x7B is cheaper at $0.70 / $0.70 per million input/output tokens, against $1.25 / $2.50 for Grok 4.20 Multi-Agent.
- Grok 4.20 Multi-Agent accepts more context: 1M tokens versus 32K.
- Mixtral 8x7B has downloadable open weights; the other is API-only.

## Snapshot

| | Grok 4.20 Multi-Agent | Mixtral 8x7B |
|---|---|---|
| Provider | xAI | Mistral AI |
| Noometry Index | 46.2 | 27.1 |
| Rank | 65 | 334 |
| Context | 1M | 32K |
| Input $/M | $1.25 | $0.70 |
| Output $/M | $2.50 | $0.70 |
| Weights | Proprietary | Open |

## Coding

- Grok 4.20 Multi-Agent: 43.0 (#92)
- Mixtral 8x7B: 32.8 (#269)

| Benchmark | Grok 4.20 Multi-Agent | Mixtral 8x7B |
|---|---|---|
| LMArena Coding | 1457 | 1126 |
| HumanEval+ | — | 39.6% |
| MBPP+ | — | 49.7% |

## Agentic & Tool Use

- Grok 4.20 Multi-Agent: —
- Mixtral 8x7B: —

| Benchmark | Grok 4.20 Multi-Agent | Mixtral 8x7B |
|---|---|---|
| LMArena Search | 1204 | — |

## Reasoning

- Grok 4.20 Multi-Agent: 43.9 (#48)
- Mixtral 8x7B: 18.2 (#285)

| Benchmark | Grok 4.20 Multi-Agent | Mixtral 8x7B |
|---|---|---|
| LMArena Hard Prompts | 1448 | 1115 |
| NYT Connections (extended) | 89.6% | — |
| DTBench | — | 49.6% |
| Adversarial NLI | — | 55.2% |
| Epoch Capabilities Index | — | 118.47 |
| ForecastBench | — | 56.3 |
| HellaSwag | — | 86.7% |
| PIQA | — | 83.6% |
| WinoGrande | — | 77.2% |

## Math

- Grok 4.20 Multi-Agent: 39.4 (#104)
- Mixtral 8x7B: 18.8 (#289)

| Benchmark | Grok 4.20 Multi-Agent | Mixtral 8x7B |
|---|---|---|
| LMArena Math | 1442 | 1147 |
| Omni-MATH | — | 10.5% |
| MATH Level 5 | — | 10% |
| GSM8K | — | 74.4% |

## Knowledge

- Grok 4.20 Multi-Agent: 40.4 (#119)
- Mixtral 8x7B: 11.0 (#301)

| Benchmark | Grok 4.20 Multi-Agent | Mixtral 8x7B |
|---|---|---|
| LMArena Expert | 1445 | 1088 |
| GPQA Diamond | — | 30.6% |
| MMLU-Pro | — | 33.5% |
| GPQA (HELM) | — | 29.6% |
| ARC (AI2) Challenge | — | 87.3% |
| MMLU | — | 70.6% |
| OpenBookQA | — | 85.8% |
| TriviaQA | — | 82.2% |

## Multimodal

- Grok 4.20 Multi-Agent: 40.5 (#48)
- Mixtral 8x7B: —

| Benchmark | Grok 4.20 Multi-Agent | Mixtral 8x7B |
|---|---|---|
| LMArena Vision | 1259 | — |

## Multilingual

- Grok 4.20 Multi-Agent: 54.4 (#43)
- Mixtral 8x7B: 29.6 (#266)

| Benchmark | Grok 4.20 Multi-Agent | Mixtral 8x7B |
|---|---|---|
| LMArena Non-English | 1440 | 1077 |
| LMArena Chinese | 1475 | 1055 |
| LMArena French | 1466 | 1166 |
| LMArena German | 1456 | 1114 |
| LMArena Japanese | 1405 | 931 |
| LMArena Korean | 1416 | 968 |
| LMArena Russian | 1457 | 1090 |
| LMArena Spanish | 1447 | 1111 |

## Instruction Following

- Grok 4.20 Multi-Agent: 74.8 (#84)
- Mixtral 8x7B: 51.0 (#297)

| Benchmark | Grok 4.20 Multi-Agent | Mixtral 8x7B |
|---|---|---|
| LMArena Instruction Following | 1420 | 1109 |
| IFEval | — | 57.5% |

## Long Context

- Grok 4.20 Multi-Agent: 43.7 (#88)
- Mixtral 8x7B: 33.4 (#260)

| Benchmark | Grok 4.20 Multi-Agent | Mixtral 8x7B |
|---|---|---|
| LMArena Longer Query | 1431 | 1103 |

## Writing & Preference

- Grok 4.20 Multi-Agent: 64.0 (#59)
- Mixtral 8x7B: 34.2 (#270)

| Benchmark | Grok 4.20 Multi-Agent | Mixtral 8x7B |
|---|---|---|
| LMArena Text | 1450 | 1132 |
| LMArena Creative Writing | 1436 | 1109 |
| LMArena Multi-Turn | 1452 | 1115 |
| WildBench | — | 67.3% |

## FAQ

### Is Grok 4.20 Multi-Agent better than Mixtral 8x7B?

Grok 4.20 Multi-Agent is the stronger model overall, scoring 46.2 to 27.1 on the Noometry Index. Mixtral 8x7B costs 2.2× less per token, which makes it the better buy when Grok 4.20 Multi-Agent's lead doesn't matter for your workload.

### Which is cheaper, Grok 4.20 Multi-Agent or Mixtral 8x7B?

Mixtral 8x7B is cheaper. It lists at $0.70 per million input tokens and $0.70 per million output tokens; Grok 4.20 Multi-Agent lists at $1.25 and $2.50.

### Is Grok 4.20 Multi-Agent or Mixtral 8x7B better for coding?

Grok 4.20 Multi-Agent scores higher on coding benchmarks: 43.0 versus 32.8 in the Noometry coding category.

### Which has the bigger context window?

Grok 4.20 Multi-Agent does, with 1M tokens against 32K.

### How many benchmarks do Grok 4.20 Multi-Agent and Mixtral 8x7B share?

17 benchmarks have published results for both models. Grok 4.20 Multi-Agent has 20 scored results on Noometry and Mixtral 8x7B has 38.