Noometry

Model comparison

Claude Opus 4 vs Yi-34B

Claude Opus 4 is the stronger model overall, scoring 43.1 to 27.8 on the Noometry Index.

Last verified . 20 shared benchmarks.

Claude Opus 4 Anthropic

43.1

Rank #100 Confirmed

Yi-34B 01.AI

27.8

Rank #329 Confirmed

Summary

  • They share 20 benchmarks with published results for both. Claude Opus 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 Claude Opus 4 leads 44.0 to 7.5.
  • The biggest single-benchmark swing is MATH Level 5: 85% for Claude Opus 4 and 5.1% for Yi-34B.
  • Yi-34B has downloadable open weights; the other is API-only.

Side by side

Claude Opus 4Yi-34B
ProviderAnthropic01.AI
Noometry Index43.127.8
Released2025-05-222023-11-02
WeightsProprietaryOpen
Context window200K—
Max output32K—
Input $ / M tokens$15—
Output $ / M tokens$75—
Results tracked5623

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Category by category

Coding Claude Opus 4 leads

Claude Opus 4: 47.2 (#62), Yi-34B: 32.3 (#274)

BenchmarkClaude Opus 4Yi-34B
LMArena Coding14421112
SWE-bench Verified70.7%—
SWE-bench Verified (bash only)67.6%—
Aider Polyglot72%—
GSO6.9%—
WeirdML43.7%—
AlgoTune1.33—

Agentic & Tool Use Not comparable

Claude Opus 4: 34.8 (#42), Yi-34B: —

BenchmarkClaude Opus 4Yi-34B
Cybench38%—
DeepResearch Bench46.8%—
LMArena Search1127—
METR Time Horizons63.9%—

Reasoning Claude Opus 4 leads

Claude Opus 4: 27.3 (#121), Yi-34B: 21.2 (#226)

BenchmarkClaude Opus 4Yi-34B
LMArena Hard Prompts13991104
Epoch Capabilities Index142.67117.39
ARC-AGI-28.6%—
SimpleBench58.8%—
Kagi LLM Benchmark74.3%—
ARC-AGI-135.7%—
CritPt0.3%—
EnigmaEval5.6%—
DTBench81.6%—
LMCA37.4%—
BIG-Bench Hard—71.7%
ForecastBench61.1—

Math Claude Opus 4 leads

Claude Opus 4: 42.0 (#86), Yi-34B: 21.6 (#282)

BenchmarkClaude Opus 4Yi-34B
LMArena Math13901114
MATH Level 585%5.1%
OTIS Mock AIME 2024-202564.4%—
Omni-MATH61.6%—
FrontierMath (Feb 2025 set)4.5%—
FrontierMath Tier 4 (v1)4.2%—
GSM8K—76%

Knowledge Claude Opus 4 leads

Claude Opus 4: 44.0 (#88), Yi-34B: 7.5 (#309)

BenchmarkClaude Opus 4Yi-34B
GPQA Diamond76.3%14.7%
LMArena Expert13861061
Humanity's Last Exam10.7%—
MMLU-Pro87.5%—
Confabulations15.9%—
Vectara Hallucination Rate12%—
GPQA (HELM)70.8%—
MMLU—76.3%

Multimodal Not comparable

Claude Opus 4: 31.5 (#106), Yi-34B: —

BenchmarkClaude Opus 4Yi-34B
LMArena Vision1192—
GeoBench49%—
VPCT38%—

Multilingual Claude Opus 4 leads

Claude Opus 4: 48.8 (#138), Yi-34B: 29.7 (#264)

BenchmarkClaude Opus 4Yi-34B
LMArena Non-English13621079
LMArena Chinese13861176
LMArena French13721081
LMArena German13911042
LMArena Japanese1331993
LMArena Korean1321959
LMArena Russian13921050
LMArena Spanish13891070

Instruction Following Claude Opus 4 leads

Claude Opus 4: 77.1 (#28), Yi-34B: 56.2 (#274)

BenchmarkClaude Opus 4Yi-34B
LMArena Instruction Following14061091
IFEval91.8%—

Long Context Claude Opus 4 leads

Claude Opus 4: 39.6 (#172), Yi-34B: 33.2 (#264)

BenchmarkClaude Opus 4Yi-34B
LMArena Longer Query14221094
Fiction.LiveBench61.1%—

Writing & Preference Claude Opus 4 leads

Claude Opus 4: 61.2 (#89), Yi-34B: 34.1 (#273)

BenchmarkClaude Opus 4Yi-34B
LMArena Text13771129
LMArena Creative Writing13871108
LMArena Multi-Turn13961113
Short-Story Creative Writing83.6%—
EQ-Bench Creative Writing1580—
WildBench85.2%—

Frequently asked questions

Is Claude Opus 4 better than Yi-34B?

Claude Opus 4 is the stronger model overall, scoring 43.1 to 27.8 on the Noometry Index.

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

Claude Opus 4 scores higher on coding benchmarks: 47.2 versus 32.3 in the Noometry coding category.

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

20 benchmarks have published results for both models. Claude Opus 4 has 56 scored results on Noometry and Yi-34B has 23.

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