Noometry

Model comparison

Grok 4.20 (Non-Reasoning) vs Mixtral 8x7B

Grok 4.20 (Non-Reasoning) is the stronger model overall, scoring 48.6 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 (Non-Reasoning)'s lead doesn't matter for your workload.

Last verified . 21 shared benchmarks.

Grok 4.20 (Non-Reasoning) xAI

48.6

Rank #54 Confirmed

Mixtral 8x7B Mistral AI

27.1

Rank #334 Confirmed

Summary

  • They share 21 benchmarks with published results for both. Grok 4.20 (Non-Reasoning) scores higher in 8 categories and Mixtral 8x7B in 0 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in knowledge, where Grok 4.20 (Non-Reasoning) leads 52.8 to 11.0.
  • The biggest single-benchmark swing is GPQA Diamond: 89.3% for Grok 4.20 (Non-Reasoning) and 30.6% for Mixtral 8x7B.
  • Mixtral 8x7B is cheaper at $0.70 / $0.70 per million input/output tokens, against $1.25 / $2.50 for Grok 4.20 (Non-Reasoning).
  • Grok 4.20 (Non-Reasoning) accepts more context: 1M tokens versus 32K.
  • Mixtral 8x7B has downloadable open weights; the other is API-only.

Side by side

Grok 4.20 (Non-Reasoning)Mixtral 8x7B
ProviderxAIMistral AI
Noometry Index48.627.1
Released2026-02-172023-12-11
WeightsProprietaryOpen
Context window1M32K
Max output30K32K
Input $ / M tokens$1.25$0.70
Output $ / M tokens$2.50$0.70
Results tracked4638

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Category by category

Coding Grok 4.20 (Non-Reasoning) leads

Grok 4.20 (Non-Reasoning): 42.1 (#112), Mixtral 8x7B: 32.8 (#269)

BenchmarkGrok 4.20 (Non-Reasoning)Mixtral 8x7B
LMArena Coding14591126
LMArena WebDev1375—
WeirdML52.3%—
ALE-Bench1,150—
HumanEval+—39.6%
MBPP+—49.7%

Agentic & Tool Use Not comparable

Grok 4.20 (Non-Reasoning): 34.4 (#46), Mixtral 8x7B: —

BenchmarkGrok 4.20 (Non-Reasoning)Mixtral 8x7B
Terminal-Bench57.3%—
τ²-bench Banking18%—
LMArena Search1189—
Vending-Bench 24,663—

Reasoning Grok 4.20 (Non-Reasoning) leads

Grok 4.20 (Non-Reasoning): 52.3 (#32), Mixtral 8x7B: 18.2 (#285)

BenchmarkGrok 4.20 (Non-Reasoning)Mixtral 8x7B
LMArena Hard Prompts14511115
DTBench90.1%49.6%
Epoch Capabilities Index151.98118.47
ForecastBench61.456.3
ARC-AGI-265.1%—
Kagi LLM Benchmark75%—
NYT Connections (extended)85.4%—
ARC-AGI-189.5%—
Chess Puzzles24%—
Thematic Generalization63.8%—
LMCA38.7%—
Adversarial NLI—55.2%
HellaSwag—86.7%
PIQA—83.6%
WinoGrande—77.2%

Math Grok 4.20 (Non-Reasoning) leads

Grok 4.20 (Non-Reasoning): 48.2 (#65), Mixtral 8x7B: 18.8 (#289)

BenchmarkGrok 4.20 (Non-Reasoning)Mixtral 8x7B
LMArena Math14551147
FrontierMath (Tiers 1-3)44.9%—
FrontierMath Tier 417.1%—
OTIS Mock AIME 2024-202592.2%—
ProofBench14%—
Omni-MATH—10.5%
MATH Level 5—10%
GSM8K—74.4%

Knowledge Grok 4.20 (Non-Reasoning) leads

Grok 4.20 (Non-Reasoning): 52.8 (#60), Mixtral 8x7B: 11.0 (#301)

BenchmarkGrok 4.20 (Non-Reasoning)Mixtral 8x7B
GPQA Diamond89.3%30.6%
LMArena Expert14391088
SimpleQA Verified30.2%—
MMLU-Pro—33.5%
GPQA (HELM)—29.6%
ARC (AI2) Challenge—87.3%
MMLU—70.6%
OpenBookQA—85.8%
TriviaQA—82.2%

Multimodal Not comparable

Grok 4.20 (Non-Reasoning): 33.3 (#98), Mixtral 8x7B: —

BenchmarkGrok 4.20 (Non-Reasoning)Mixtral 8x7B
LMArena Vision1263—
Blueprint-Bench 20%—
LMArena Document1416—

Multilingual Grok 4.20 (Non-Reasoning) leads

Grok 4.20 (Non-Reasoning): 54.5 (#40), Mixtral 8x7B: 29.6 (#266)

BenchmarkGrok 4.20 (Non-Reasoning)Mixtral 8x7B
LMArena Non-English14411077
LMArena Chinese14811055
LMArena French14761166
LMArena German14651114
LMArena Japanese1449931
LMArena Korean1417968
LMArena Russian14581090
LMArena Spanish14431111

Instruction Following Grok 4.20 (Non-Reasoning) leads

Grok 4.20 (Non-Reasoning): 74.8 (#83), Mixtral 8x7B: 51.0 (#297)

BenchmarkGrok 4.20 (Non-Reasoning)Mixtral 8x7B
LMArena Instruction Following14201109
IFEval—57.5%

Long Context Grok 4.20 (Non-Reasoning) leads

Grok 4.20 (Non-Reasoning): 45.5 (#34), Mixtral 8x7B: 33.4 (#260)

BenchmarkGrok 4.20 (Non-Reasoning)Mixtral 8x7B
LMArena Longer Query14371103
CL-bench22.2%—
CL-bench Life11.9%—

Writing & Preference Grok 4.20 (Non-Reasoning) leads

Grok 4.20 (Non-Reasoning): 65.7 (#44), Mixtral 8x7B: 34.2 (#270)

BenchmarkGrok 4.20 (Non-Reasoning)Mixtral 8x7B
LMArena Text14511132
LMArena Creative Writing14381109
LMArena Multi-Turn14561115
EQ-Bench Creative Writing1574—
WildBench—67.3%

Frequently asked questions

Is Grok 4.20 (Non-Reasoning) better than Mixtral 8x7B?

Grok 4.20 (Non-Reasoning) is the stronger model overall, scoring 48.6 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 (Non-Reasoning)'s lead doesn't matter for your workload.

Which is cheaper, Grok 4.20 (Non-Reasoning) 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 (Non-Reasoning) lists at $1.25 and $2.50.

Is Grok 4.20 (Non-Reasoning) or Mixtral 8x7B better for coding?

Grok 4.20 (Non-Reasoning) scores higher on coding benchmarks: 42.1 versus 32.8 in the Noometry coding category.

Which has the bigger context window?

Grok 4.20 (Non-Reasoning) does, with 1M tokens against 32K.

How many benchmarks do Grok 4.20 (Non-Reasoning) and Mixtral 8x7B share?

21 benchmarks have published results for both models. Grok 4.20 (Non-Reasoning) has 46 scored results on Noometry and Mixtral 8x7B has 38.

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