Noometry

Model comparison

Claude Sonnet 4 vs Yi-34B

Claude Sonnet 4 is the stronger model overall, scoring 40.8 to 27.8 on the Noometry Index.

Last verified . 20 shared benchmarks.

Claude Sonnet 4 Anthropic

40.8

Rank #145 Confirmed

Yi-34B 01.AI

27.8

Rank #329 Confirmed

Summary

  • They share 20 benchmarks with published results for both. Claude Sonnet 4 scores higher in 8 categories and Yi-34B in 0 categories; 7 gaps are clear of the uncertainty.
  • The widest gap is in knowledge, where Claude Sonnet 4 leads 41.8 to 7.5.
  • The biggest single-benchmark swing is MATH Level 5: 84.4% for Claude Sonnet 4 and 5.1% for Yi-34B.
  • Yi-34B has downloadable open weights; the other is API-only.

Side by side

Claude Sonnet 4Yi-34B
ProviderAnthropic01.AI
Noometry Index40.827.8
Released2025-05-222023-11-02
WeightsProprietaryOpen
Context window200K—
Max output64K—
Input $ / M tokens$3—
Output $ / M tokens$15—
Results tracked5823

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Category by category

Coding Claude Sonnet 4 leads

Claude Sonnet 4: 43.5 (#88), Yi-34B: 32.3 (#274)

BenchmarkClaude Sonnet 4Yi-34B
LMArena Coding14141112
SWE-bench Verified (bash only)64.9%—
Aider Polyglot61.3%—
SciCode40%—
GSO4.9%—
WeirdML46.1%—
ALE-Bench655.35—

Agentic & Tool Use Not comparable

Claude Sonnet 4: 38.5 (#31), Yi-34B: —

BenchmarkClaude Sonnet 4Yi-34B
TheAgentCompany33.1%—
Cybench35%—
DeepResearch Bench46.6%—
OSWorld43.9%—
METR Time Horizons62%—

Reasoning Claude Sonnet 4 leads

Claude Sonnet 4: 22.9 (#187), Yi-34B: 21.2 (#226)

BenchmarkClaude Sonnet 4Yi-34B
LMArena Hard Prompts13721104
Epoch Capabilities Index141.69117.39
ARC-AGI-25.9%—
SimpleBench45.5%—
Kagi LLM Benchmark73%—
ARC-AGI-140%—
CritPt0.3%—
EnigmaEval3.1%—
DTBench77.1%—
LMCA29%—
BIG-Bench Hard—71.7%
ForecastBench60.2—

Math Claude Sonnet 4 leads

Claude Sonnet 4: 43.3 (#80), Yi-34B: 21.6 (#282)

BenchmarkClaude Sonnet 4Yi-34B
LMArena Math13751114
MATH Level 584.4%5.1%
OTIS Mock AIME 2024-202571.1%—
Omni-MATH60.2%—
FrontierMath (Feb 2025 set)4.1%—
FrontierMath Tier 4 (v1)0%—
GSM8K—76%

Knowledge Claude Sonnet 4 leads

Claude Sonnet 4: 41.8 (#108), Yi-34B: 7.5 (#309)

BenchmarkClaude Sonnet 4Yi-34B
GPQA Diamond79.2%14.7%
LMArena Expert13721061
Humanity's Last Exam7.8%—
MMLU-Pro84.3%—
Confabulations13.2%—
Vectara Hallucination Rate10.3%—
GPQA (HELM)70.6%—
MMLU—76.3%

Multimodal Not comparable

Claude Sonnet 4: 26.2 (#121), Yi-34B: —

BenchmarkClaude Sonnet 4Yi-34B
LMArena Vision1191—
GeoBench37%—
VPCT34%—
MindCube44.8%—

Multilingual Claude Sonnet 4 leads

Claude Sonnet 4: 46.7 (#156), Yi-34B: 29.7 (#264)

BenchmarkClaude Sonnet 4Yi-34B
LMArena Non-English13331079
LMArena Chinese13501176
LMArena French13631081
LMArena German13311042
LMArena Japanese1302993
LMArena Korean1291959
LMArena Russian13551050
LMArena Spanish13571070

Instruction Following Claude Sonnet 4 leads

Claude Sonnet 4: 71.7 (#145), Yi-34B: 56.2 (#274)

BenchmarkClaude Sonnet 4Yi-34B
LMArena Instruction Following13761091
IFEval84%—

Long Context Too close to call

Claude Sonnet 4: 33.7 (#259), Yi-34B: 33.2 (#264)

BenchmarkClaude Sonnet 4Yi-34B
LMArena Longer Query13981094
Fiction.LiveBench46.9%—

Writing & Preference Claude Sonnet 4 leads

Claude Sonnet 4: 57.1 (#132), Yi-34B: 34.1 (#273)

BenchmarkClaude Sonnet 4Yi-34B
LMArena Text13511129
LMArena Creative Writing13451108
LMArena Multi-Turn13761113
Short-Story Creative Writing81.4%—
EQ-Bench Creative Writing1483—
WildBench83.8%—

Frequently asked questions

Is Claude Sonnet 4 better than Yi-34B?

Claude Sonnet 4 is the stronger model overall, scoring 40.8 to 27.8 on the Noometry Index.

Is Claude Sonnet 4 or Yi-34B better for coding?

Claude Sonnet 4 scores higher on coding benchmarks: 43.5 versus 32.3 in the Noometry coding category.

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

20 benchmarks have published results for both models. Claude Sonnet 4 has 58 scored results on Noometry and Yi-34B has 23.

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