Model comparison

Grok 4 Fast vs Qwen3.6 Max Preview

Qwen3.6 Max Preview is the stronger model overall, scoring 51.5 to 39.4 on the Noometry Index.

Last verified . 17 shared benchmarks.

Grok 4 Fast xAI

39.4

Rank #167 Confirmed

Qwen3.6 Max Preview Alibaba (Qwen)

51.5

Rank #43 Confirmed

Summary

  • They share 17 benchmarks with published results for both. Grok 4 Fast scores higher in 1 category and Qwen3.6 Max Preview in 7 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in knowledge, where Qwen3.6 Max Preview leads 57.6 to 32.0.

Side by side

Grok 4 Fast and Qwen3.6 Max Preview specifications
Grok 4 FastQwen3.6 Max Preview
ProviderxAIAlibaba (Qwen)
Noometry Index39.451.5
Released2025-09-192026-04-20
WeightsProprietaryProprietary
Context window—262K
Max output—66K
Input $ / M tokens—$1.30
Output $ / M tokens—$7.80
Results tracked3029

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Category by category

Coding Qwen3.6 Max Preview leads

Grok 4 Fast: 32.5 (#271), Qwen3.6 Max Preview: 48.7 (#54)

Coding benchmarks
BenchmarkGrok 4 FastQwen3.6 Max Preview
LMArena WebDev11591482
LMArena Coding14291471
SWE-bench Verified—76.7%
WeirdML42.9%—

Agentic & Tool Use Not comparable

Grok 4 Fast: 29.5 (#86), Qwen3.6 Max Preview: —

Agentic & Tool Use benchmarks
BenchmarkGrok 4 FastQwen3.6 Max Preview
τ²-bench Banking15.7%—
Cybench30%—
LMArena Search1171—
Vending-Bench 2—4,254

Reasoning Qwen3.6 Max Preview leads

Grok 4 Fast: 22.2 (#201), Qwen3.6 Max Preview: 41.7 (#53)

Reasoning benchmarks
BenchmarkGrok 4 FastQwen3.6 Max Preview
LMArena Hard Prompts14121457
DTBench82.7%87.2%
Epoch Capabilities Index144.2149.24
ARC-AGI-25.3%—
SimpleBench—63%
Kagi LLM Benchmark66.1%—
NYT Connections (extended)—74.1%
ARC-AGI-148.5%—
Chess Puzzles—20%
Mystery Game Puzzles—19%
LMCA—42.5%
ForecastBench60.5—

Math Qwen3.6 Max Preview leads

Grok 4 Fast: 38.9 (#123), Qwen3.6 Max Preview: 54.1 (#46)

Math benchmarks
BenchmarkGrok 4 FastQwen3.6 Max Preview
LMArena Math14191465
OTIS Mock AIME 2024-2025—91.1%
FrontierMath (Feb 2025 set)—23.1%
FrontierMath Tier 4 (v1)—4.2%

Knowledge Qwen3.6 Max Preview leads

Grok 4 Fast: 32.0 (#214), Qwen3.6 Max Preview: 57.6 (#39)

Knowledge benchmarks
BenchmarkGrok 4 FastQwen3.6 Max Preview
LMArena Expert14111478
GPQA Diamond—87.4%
SimpleQA Verified—52%
Vectara Hallucination Rate19.7%—

Multilingual Qwen3.6 Max Preview leads

Grok 4 Fast: 51.3 (#111), Qwen3.6 Max Preview: 54.2 (#48)

Multilingual benchmarks
BenchmarkGrok 4 FastQwen3.6 Max Preview
LMArena Non-English13961437
LMArena Chinese14571487
LMArena French14311449
LMArena Russian13891445
LMArena Spanish14151454
LMArena German1383—
LMArena Japanese1352—
LMArena Korean1357—

Instruction Following Qwen3.6 Max Preview leads

Grok 4 Fast: 73.2 (#121), Qwen3.6 Max Preview: 75.7 (#55)

Instruction Following benchmarks
BenchmarkGrok 4 FastQwen3.6 Max Preview
LMArena Instruction Following13871438

Long Context Grok 4 Fast leads

Grok 4 Fast: 63.2 (#3), Qwen3.6 Max Preview: 44.6 (#61)

Long Context benchmarks
BenchmarkGrok 4 FastQwen3.6 Max Preview
LMArena Longer Query14151457
Fiction.LiveBench94.4%—

Writing & Preference Qwen3.6 Max Preview leads

Grok 4 Fast: 60.0 (#102), Qwen3.6 Max Preview: 63.8 (#60)

Writing & Preference benchmarks
BenchmarkGrok 4 FastQwen3.6 Max Preview
LMArena Text14071447
LMArena Creative Writing13871435
LMArena Multi-Turn14141456

Frequently asked questions

Is Grok 4 Fast better than Qwen3.6 Max Preview?

Qwen3.6 Max Preview is the stronger model overall, scoring 51.5 to 39.4 on the Noometry Index.

Is Grok 4 Fast or Qwen3.6 Max Preview better for coding?

Qwen3.6 Max Preview scores higher on coding benchmarks: 48.7 versus 32.5 in the Noometry coding category.

How many benchmarks do Grok 4 Fast and Qwen3.6 Max Preview share?

17 benchmarks have published results for both models. Grok 4 Fast has 30 scored results on Noometry and Qwen3.6 Max Preview has 29.

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