Noometry

Model comparison

Grok 4 vs Yi-34B

Grok 4 is the stronger model overall, scoring 48.1 to 27.8 on the Noometry Index.

Last verified . 19 shared benchmarks.

Grok 4 xAI

48.1

Rank #56 Confirmed

Yi-34B 01.AI

27.8

Rank #329 Confirmed

Summary

  • They share 19 benchmarks with published results for both. Grok 4 scores higher in 8 categories and Yi-34B in 0 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in knowledge, where Grok 4 leads 53.8 to 7.5.
  • The biggest single-benchmark swing is GPQA Diamond: 87% for Grok 4 and 14.7% for Yi-34B.
  • Yi-34B has downloadable open weights; the other is API-only.

Side by side

Grok 4Yi-34B
ProviderxAI01.AI
Noometry Index48.127.8
Released2025-07-092023-11-02
WeightsProprietaryOpen
Context window——
Max output——
Input $ / M tokens——
Output $ / M tokens——
Results tracked4823

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Category by category

Coding Grok 4 leads

Grok 4: 50.3 (#46), Yi-34B: 32.3 (#274)

BenchmarkGrok 4Yi-34B
LMArena Coding14081112
Aider Polyglot79.6%—
WeirdML45.7%—

Agentic & Tool Use Not comparable

Grok 4: 32.3 (#68), Yi-34B: —

BenchmarkGrok 4Yi-34B
Terminal-Bench27.2%—
Berkeley Function Calling Leaderboard63%—
GDPval21.1%—
Cybench43%—
DeepResearch Bench47.3%—
BALROG43.6%—
LMArena Search1142—
METR Time Horizons66.6%—

Reasoning Grok 4 leads

Grok 4: 36.7 (#65), Yi-34B: 21.2 (#226)

BenchmarkGrok 4Yi-34B
LMArena Hard Prompts14091104
Epoch Capabilities Index146.44117.39
ARC-AGI-216%—
SimpleBench60.5%—
Kagi LLM Benchmark73.6%—
ARC-AGI-166.7%—
Chess Puzzles28%—
BIG-Bench Hard—71.7%
ForecastBench60.9—

Math Grok 4 leads

Grok 4: 48.4 (#64), Yi-34B: 21.6 (#282)

BenchmarkGrok 4Yi-34B
LMArena Math14221114
OTIS Mock AIME 2024-202584%—
Omni-MATH60.3%—
MATH Level 5—5.1%
FrontierMath (Feb 2025 set)19.7%—
FrontierMath Tier 4 (v1)2.1%—
GSM8K—76%

Knowledge Grok 4 leads

Grok 4: 53.8 (#55), Yi-34B: 7.5 (#309)

BenchmarkGrok 4Yi-34B
GPQA Diamond87%14.7%
LMArena Expert14151061
MMLU-Pro85.1%—
Confabulations12.4%—
GPQA (HELM)72.7%—
MMLU—76.3%

Multimodal Not comparable

Grok 4: 33.7 (#94), Yi-34B: —

BenchmarkGrok 4Yi-34B
LMArena Vision1210—
GeoBench45%—

Multilingual Grok 4 leads

Grok 4: 51.8 (#103), Yi-34B: 29.7 (#264)

BenchmarkGrok 4Yi-34B
LMArena Non-English14031079
LMArena Chinese14271176
LMArena French14181081
LMArena German14291042
LMArena Japanese1394993
LMArena Korean1377959
LMArena Russian14101050
LMArena Spanish14201070

Instruction Following Grok 4 leads

Grok 4: 79.2 (#5), Yi-34B: 56.2 (#274)

BenchmarkGrok 4Yi-34B
LMArena Instruction Following13871091
IFEval94.9%—

Long Context Grok 4 leads

Grok 4: 63.1 (#4), Yi-34B: 33.2 (#264)

BenchmarkGrok 4Yi-34B
LMArena Longer Query14091094
Fiction.LiveBench94.4%—

Writing & Preference Grok 4 leads

Grok 4: 58.5 (#116), Yi-34B: 34.1 (#273)

BenchmarkGrok 4Yi-34B
LMArena Text14111129
LMArena Creative Writing13971108
LMArena Multi-Turn14161113
Short-Story Creative Writing76.9%—
WildBench79.7%—

Frequently asked questions

Is Grok 4 better than Yi-34B?

Grok 4 is the stronger model overall, scoring 48.1 to 27.8 on the Noometry Index.

Is Grok 4 or Yi-34B better for coding?

Grok 4 scores higher on coding benchmarks: 50.3 versus 32.3 in the Noometry coding category.

How many benchmarks do Grok 4 and Yi-34B share?

19 benchmarks have published results for both models. Grok 4 has 48 scored results on Noometry and Yi-34B has 23.

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