Model comparison

Grok 4 Fast vs Llama 4 Maverick

Grok 4 Fast is the stronger model overall, scoring 39.4 to 30.9 on the Noometry Index.

Last verified . 26 shared benchmarks.

Grok 4 Fast xAI

39.4

Rank #167 Confirmed

Llama 4 Maverick Meta

30.9

Rank #282 Confirmed

Summary

  • They share 26 benchmarks with published results for both. Grok 4 Fast scores higher in 8 categories and Llama 4 Maverick in 1 category; 9 gaps are clear of the uncertainty.
  • The widest gap is in long context, where Grok 4 Fast leads 63.2 to 31.4.
  • The biggest single-benchmark swing is Fiction.LiveBench: 94.4% for Grok 4 Fast and 46.2% for Llama 4 Maverick.
  • Llama 4 Maverick has downloadable open weights; the other is API-only.

Side by side

Grok 4 Fast and Llama 4 Maverick specifications
Grok 4 FastLlama 4 Maverick
ProviderxAIMeta
Noometry Index39.430.9
Released2025-09-192025-04-05
WeightsProprietaryOpen
Context window—128K
Max output—4K
Input $ / M tokens—$0.19
Output $ / M tokens—$0.65
Results tracked3054

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Category by category

Coding Grok 4 Fast leads

Grok 4 Fast: 32.5 (#271), Llama 4 Maverick: 26.6 (#324)

Coding benchmarks
BenchmarkGrok 4 FastLlama 4 Maverick
WeirdML42.9%24.5%
LMArena Coding14291302
SWE-bench Verified (bash only)—21%
Aider Polyglot—15.6%
LMArena WebDev1159—
SciCode—33.1%
BigCodeBench Instruct—49.7%
BigCodeBench Complete—61.4%
ALE-Bench—172.97

Agentic & Tool Use Grok 4 Fast leads

Grok 4 Fast: 29.5 (#86), Llama 4 Maverick: 28.2 (#91)

Agentic & Tool Use benchmarks
BenchmarkGrok 4 FastLlama 4 Maverick
Berkeley Function Calling Leaderboard—37.3%
τ²-bench Banking15.7%—
Cybench30%—
LMArena Search1171—

Reasoning Grok 4 Fast leads

Grok 4 Fast: 22.2 (#201), Llama 4 Maverick: 10.1 (#342)

Reasoning benchmarks
BenchmarkGrok 4 FastLlama 4 Maverick
ARC-AGI-25.3%0%
Kagi LLM Benchmark66.1%55.9%
ARC-AGI-148.5%4.4%
LMArena Hard Prompts14121281
DTBench82.7%61.9%
Epoch Capabilities Index144.2132.2
ForecastBench60.557.5
SimpleBench—27.7%
NYT Connections (extended)—8%
CritPt—0%
EnigmaEval—0.6%
LMCA—15.9%

Math Grok 4 Fast leads

Grok 4 Fast: 38.9 (#123), Llama 4 Maverick: 26.0 (#262)

Math benchmarks
BenchmarkGrok 4 FastLlama 4 Maverick
LMArena Math14191299
OTIS Mock AIME 2024-2025—20.6%
Omni-MATH—42.2%
MATH Level 5—73%
FrontierMath (Feb 2025 set)—0.7%

Knowledge Llama 4 Maverick leads

Grok 4 Fast: 32.0 (#214), Llama 4 Maverick: 33.4 (#204)

Knowledge benchmarks
BenchmarkGrok 4 FastLlama 4 Maverick
Vectara Hallucination Rate19.7%8.2%
LMArena Expert14111259
GPQA Diamond—67%
Humanity's Last Exam—5.7%
MMLU-Pro—81%
Confabulations—22.6%
GPQA (HELM)—65%

Multimodal Not comparable

Grok 4 Fast: —, Llama 4 Maverick: 31.6 (#105)

Multimodal benchmarks
BenchmarkGrok 4 FastLlama 4 Maverick
LMArena Vision—1142
GeoBench—52%
SpatialViz-Bench—31.8%

Multilingual Grok 4 Fast leads

Grok 4 Fast: 51.3 (#111), Llama 4 Maverick: 42.2 (#195)

Multilingual benchmarks
BenchmarkGrok 4 FastLlama 4 Maverick
LMArena Non-English13961269
LMArena Chinese14571277
LMArena French14311259
LMArena German13831291
LMArena Japanese13521207
LMArena Korean13571203
LMArena Russian13891286
LMArena Spanish14151293

Instruction Following Grok 4 Fast leads

Grok 4 Fast: 73.2 (#121), Llama 4 Maverick: 71.7 (#146)

Instruction Following benchmarks
BenchmarkGrok 4 FastLlama 4 Maverick
LMArena Instruction Following13871267
IFEval—90.8%

Long Context Grok 4 Fast leads

Grok 4 Fast: 63.2 (#3), Llama 4 Maverick: 31.4 (#279)

Long Context benchmarks
BenchmarkGrok 4 FastLlama 4 Maverick
Fiction.LiveBench94.4%46.2%
LMArena Longer Query14151280

Writing & Preference Grok 4 Fast leads

Grok 4 Fast: 60.0 (#102), Llama 4 Maverick: 38.8 (#252)

Writing & Preference benchmarks
BenchmarkGrok 4 FastLlama 4 Maverick
LMArena Text14071287
LMArena Creative Writing13871267
LMArena Multi-Turn14141289
Short-Story Creative Writing—62%
EQ-Bench Creative Writing—860
WildBench—80%

Frequently asked questions

Is Grok 4 Fast better than Llama 4 Maverick?

Grok 4 Fast is the stronger model overall, scoring 39.4 to 30.9 on the Noometry Index.

Is Grok 4 Fast or Llama 4 Maverick better for coding?

Grok 4 Fast scores higher on coding benchmarks: 32.5 versus 26.6 in the Noometry coding category.

How many benchmarks do Grok 4 Fast and Llama 4 Maverick share?

26 benchmarks have published results for both models. Grok 4 Fast has 30 scored results on Noometry and Llama 4 Maverick has 54.

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