Model comparison

Grok-3 mini vs Hy4 preview

Hy4 preview is the stronger model overall, scoring 44.6 to 41.0 on the Noometry Index.

Last verified . 0 shared benchmarks.

Grok-3 mini xAI

41.0

Rank #130 Confirmed

Hy4 preview Tencent

44.6

Rank #73 Reported

Summary

  • The widest gap is in reasoning, where Hy4 preview leads 30.6 to 13.8.
  • Hy4 preview has downloadable open weights; the other is API-only.

Side by side

Grok-3 mini and Hy4 preview specifications
Grok-3 miniHy4 preview
ProviderxAITencent
Noometry Index41.044.6
Released2025-04-092026-08-28
WeightsProprietaryOpen
Context window—1.05M
Max output—64K
Input $ / M tokens—$0.83
Output $ / M tokens—$2.50
Results tracked353

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Category by category

Coding Hy4 preview leads

Grok-3 mini: 40.4 (#126), Hy4 preview: 51.4 (#36)

Coding benchmarks
BenchmarkGrok-3 miniHy4 preview
Aider Polyglot49.3%—
LMArena WebDev—1633
WeirdML42.6%—
LMArena Coding1380—

Reasoning Hy4 preview leads

Grok-3 mini: 13.8 (#323), Hy4 preview: 30.6 (#75)

Reasoning benchmarks
BenchmarkGrok-3 miniHy4 preview
ARC-AGI-20.4%—
Kagi LLM Benchmark61.3%—
NYT Connections (extended)—68.2%
ARC-AGI-116.5%—
LMArena Hard Prompts1374—
Epoch Capabilities Index140.35—

Math Hy4 preview leads

Grok-3 mini: 40.3 (#78), Hy4 preview: 54.5 (#37)

Math benchmarks
BenchmarkGrok-3 miniHy4 preview
OTIS Mock AIME 2024-202577.8%—
ProofBench—75%
Omni-MATH31.8%—
LMArena Math1386—
MATH Level 590.9%—
FrontierMath (Feb 2025 set)5.9%—

Knowledge Not comparable

Grok-3 mini: 46.3 (#75), Hy4 preview: —

Knowledge benchmarks
BenchmarkGrok-3 miniHy4 preview
GPQA Diamond76.3%—
MMLU-Pro79.9%—
Confabulations10.8%—
GPQA (HELM)67.5%—
LMArena Expert1395—

Multilingual Not comparable

Grok-3 mini: 48.3 (#141), Hy4 preview: —

Multilingual benchmarks
BenchmarkGrok-3 miniHy4 preview
LMArena Non-English1352—
LMArena Chinese1387—
LMArena French1357—
LMArena German1350—
LMArena Japanese1343—
LMArena Korean1336—
LMArena Russian1352—
LMArena Spanish1379—

Instruction Following Not comparable

Grok-3 mini: 78.7 (#8), Hy4 preview: —

Instruction Following benchmarks
BenchmarkGrok-3 miniHy4 preview
IFEval95.1%—
LMArena Instruction Following1356—

Long Context Not comparable

Grok-3 mini: 41.0 (#142), Hy4 preview: —

Long Context benchmarks
BenchmarkGrok-3 miniHy4 preview
Fiction.LiveBench66.7%—
LMArena Longer Query1372—

Writing & Preference Not comparable

Grok-3 mini: 52.7 (#163), Hy4 preview: —

Writing & Preference benchmarks
BenchmarkGrok-3 miniHy4 preview
LMArena Text1370—
LMArena Creative Writing1342—
Short-Story Creative Writing73.5%—
WildBench65.1%—
LMArena Multi-Turn1355—

Frequently asked questions

Is Grok-3 mini better than Hy4 preview?

Hy4 preview is the stronger model overall, scoring 44.6 to 41.0 on the Noometry Index.

Is Grok-3 mini or Hy4 preview better for coding?

Hy4 preview scores higher on coding benchmarks: 51.4 versus 40.4 in the Noometry coding category.

How many benchmarks do Grok-3 mini and Hy4 preview share?

0 benchmarks have published results for both models. Grok-3 mini has 35 scored results on Noometry and Hy4 preview has 3.

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