Noometry

Model comparison

Claude Opus 4 vs Yi-1.5-34B

Claude Opus 4 is the stronger model overall, scoring 42.9 to 30.2 on the Noometry Index.

Last verified . 19 shared benchmarks.

Claude Opus 4 Anthropic

42.9

Rank #93 Confirmed

Yi-1.5-34B 01.AI

30.2

Rank #286 Confirmed

Summary

  • They share 19 benchmarks with published results for both. Claude Opus 4 scores higher in 8 categories and Yi-1.5-34B in 0 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in knowledge, where Claude Opus 4 leads 43.9 to 14.8.
  • The biggest single-benchmark swing is MATH Level 5: 85% for Claude Opus 4 and 25.5% for Yi-1.5-34B.
  • Yi-1.5-34B has downloadable open weights; the other is API-only.

Side by side

Claude Opus 4Yi-1.5-34B
ProviderAnthropic01.AI
Noometry Index42.930.2
Released2025-05-222024-05-13
WeightsProprietaryOpen
Context window200K—
Max output32K—
Input $ / M tokens$15—
Output $ / M tokens$75—
Results tracked5621

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Category by category

Coding Claude Opus 4 leads

Claude Opus 4: 47.8 (#55), Yi-1.5-34B: 31.9 (#267)

BenchmarkClaude Opus 4Yi-1.5-34B
LMArena Coding14421169
SWE-bench Verified70.7%—
SWE-bench Verified (bash only)67.6%—
Aider Polyglot72%—
GSO6.9%—
WeirdML43.7%—
BigCodeBench Instruct—33.9%
BigCodeBench Complete—43.8%
AlgoTune1.33—

Agentic & Tool Use Not comparable

Claude Opus 4: 34.5 (#39), Yi-1.5-34B: —

BenchmarkClaude Opus 4Yi-1.5-34B
Cybench38%—
DeepResearch Bench46.8%—
LMArena Search1127—
METR Time Horizons63.9%—

Reasoning Claude Opus 4 leads

Claude Opus 4: 27.4 (#104), Yi-1.5-34B: 21.5 (#195)

BenchmarkClaude Opus 4Yi-1.5-34B
LMArena Hard Prompts13991160
ARC-AGI-28.6%—
SimpleBench58.8%—
Kagi LLM Benchmark74.3%—
ARC-AGI-135.7%—
CritPt0.3%—
EnigmaEval5.6%—
DTBench81.6%—
LMCA37.4%—
Epoch Capabilities Index142.67—
ForecastBench61.1—

Math Claude Opus 4 leads

Claude Opus 4: 40.2 (#80), Yi-1.5-34B: 25.3 (#248)

BenchmarkClaude Opus 4Yi-1.5-34B
LMArena Math13911182
MATH Level 585%25.5%
OTIS Mock AIME 2024-202564.4%—
Omni-MATH61.6%—
FrontierMath (Feb 2025 set)4.5%—
FrontierMath Tier 4 (v1)4.2%—

Knowledge Claude Opus 4 leads

Claude Opus 4: 43.9 (#82), Yi-1.5-34B: 14.8 (#290)

BenchmarkClaude Opus 4Yi-1.5-34B
GPQA Diamond76.3%32%
LMArena Expert13841144
Humanity's Last Exam10.7%—
MMLU-Pro87.5%—
Confabulations15.9%—
Vectara Hallucination Rate12%—
GPQA (HELM)70.8%—

Multimodal Not comparable

Claude Opus 4: 30.9 (#101), Yi-1.5-34B: —

BenchmarkClaude Opus 4Yi-1.5-34B
LMArena Vision1192—
GeoBench49%—
VPCT38%—

Multilingual Claude Opus 4 leads

Claude Opus 4: 49.0 (#133), Yi-1.5-34B: 32.5 (#251)

BenchmarkClaude Opus 4Yi-1.5-34B
LMArena Non-English13621121
LMArena Chinese13861213
LMArena French13701155
LMArena German13911111
LMArena Japanese13321021
LMArena Korean13181005
LMArena Russian13921091
LMArena Spanish13881120

Instruction Following Claude Opus 4 leads

Claude Opus 4: 77.3 (#26), Yi-1.5-34B: 59.4 (#252)

BenchmarkClaude Opus 4Yi-1.5-34B
LMArena Instruction Following14061139
IFEval91.8%—

Long Context Claude Opus 4 leads

Claude Opus 4: 39.5 (#167), Yi-1.5-34B: 34.6 (#243)

BenchmarkClaude Opus 4Yi-1.5-34B
LMArena Longer Query14221144
Fiction.LiveBench61.1%—

Writing & Preference Claude Opus 4 leads

Claude Opus 4: 61.4 (#85), Yi-1.5-34B: 37.6 (#252)

BenchmarkClaude Opus 4Yi-1.5-34B
LMArena Text13771173
LMArena Creative Writing13861135
LMArena Multi-Turn13961153
Short-Story Creative Writing83.6%—
EQ-Bench Creative Writing1580—
WildBench85.2%—

Frequently asked questions

Is Claude Opus 4 better than Yi-1.5-34B?

Claude Opus 4 is the stronger model overall, scoring 42.9 to 30.2 on the Noometry Index.

Is Claude Opus 4 or Yi-1.5-34B better for coding?

Claude Opus 4 scores higher on coding benchmarks: 47.8 versus 31.9 in the Noometry coding category.

How many benchmarks do Claude Opus 4 and Yi-1.5-34B share?

19 benchmarks have published results for both models. Claude Opus 4 has 56 scored results on Noometry and Yi-1.5-34B has 21.

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