Model comparison

Grok-3 mini vs Hy3

Hy3 is the stronger model overall, scoring 44.2 to 41.2 on the Noometry Index.

Last verified . 17 shared benchmarks.

Grok-3 mini xAI

41.2

Rank #141 Confirmed

Hy3 Tencent

44.2

Rank #79 Confirmed

Summary

  • They share 17 benchmarks with published results for both. Grok-3 mini scores higher in 3 categories and Hy3 in 5 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Hy3 leads 26.1 to 13.6.
  • Hy3 has downloadable open weights; the other is API-only.

Side by side

Grok-3 mini and Hy3 specifications
Grok-3 miniHy3
ProviderxAITencent
Noometry Index41.244.2
Released2025-04-092026-07-06
WeightsProprietaryOpen
Context window—262K
Max output—128K
Input $ / M tokens—$0.0825
Output $ / M tokens—$0.33
Results tracked3519

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Category by category

Coding Hy3 leads

Grok-3 mini: 40.8 (#131), Hy3: 46.8 (#63)

Coding benchmarks
BenchmarkGrok-3 miniHy3
LMArena Coding13791464
Aider Polyglot49.3%—
LMArena WebDev—1508
WeirdML42.6%—

Reasoning Hy3 leads

Grok-3 mini: 13.6 (#334), Hy3: 26.1 (#136)

Reasoning benchmarks
BenchmarkGrok-3 miniHy3
LMArena Hard Prompts13751447
ARC-AGI-20.4%—
Kagi LLM Benchmark61.3%—
NYT Connections (extended)—41.2%
ARC-AGI-116.5%—
Epoch Capabilities Index140.35—

Math Grok-3 mini leads

Grok-3 mini: 42.1 (#85), Hy3: 40.1 (#93)

Math benchmarks
BenchmarkGrok-3 miniHy3
LMArena Math13861475
OTIS Mock AIME 2024-202577.8%—
Omni-MATH31.8%—
MATH Level 590.9%—
FrontierMath (Feb 2025 set)5.9%—

Knowledge Grok-3 mini leads

Grok-3 mini: 46.4 (#81), Hy3: 40.8 (#114)

Knowledge benchmarks
BenchmarkGrok-3 miniHy3
LMArena Expert13951460
GPQA Diamond76.3%—
MMLU-Pro79.9%—
Confabulations10.8%—
GPQA (HELM)67.5%—

Multilingual Hy3 leads

Grok-3 mini: 48.1 (#145), Hy3: 53.5 (#65)

Multilingual benchmarks
BenchmarkGrok-3 miniHy3
LMArena Non-English13521426
LMArena Chinese13871493
LMArena French13571461
LMArena German13491439
LMArena Japanese13421392
LMArena Korean13351395
LMArena Russian13531432
LMArena Spanish13811456

Instruction Following Grok-3 mini leads

Grok-3 mini: 78.5 (#9), Hy3: 75.1 (#70)

Instruction Following benchmarks
BenchmarkGrok-3 miniHy3
LMArena Instruction Following13571426
IFEval95.1%—

Long Context Hy3 leads

Grok-3 mini: 41.0 (#147), Hy3: 44.1 (#75)

Long Context benchmarks
BenchmarkGrok-3 miniHy3
LMArena Longer Query13721442
Fiction.LiveBench66.7%—

Writing & Preference Hy3 leads

Grok-3 mini: 52.5 (#169), Hy3: 62.2 (#81)

Writing & Preference benchmarks
BenchmarkGrok-3 miniHy3
LMArena Text13701439
LMArena Creative Writing13421402
LMArena Multi-Turn13551436
Short-Story Creative Writing73.5%—
WildBench65.1%—

Frequently asked questions

Is Grok-3 mini better than Hy3?

Hy3 is the stronger model overall, scoring 44.2 to 41.2 on the Noometry Index.

Is Grok-3 mini or Hy3 better for coding?

Hy3 scores higher on coding benchmarks: 46.8 versus 40.8 in the Noometry coding category.

How many benchmarks do Grok-3 mini and Hy3 share?

17 benchmarks have published results for both models. Grok-3 mini has 35 scored results on Noometry and Hy3 has 19.

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