Noometry

Model comparison

Claude Opus 4.1 vs Yi-34B

Claude Opus 4.1 is the stronger model overall, scoring 41.0 to 27.8 on the Noometry Index.

Last verified . 19 shared benchmarks.

Claude Opus 4.1 Anthropic

41.0

Rank #142 Confirmed

Yi-34B 01.AI

27.8

Rank #329 Confirmed

Summary

  • They share 19 benchmarks with published results for both. Claude Opus 4.1 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 Opus 4.1 leads 42.0 to 7.5.
  • The biggest single-benchmark swing is GPQA Diamond: 77.3% for Claude Opus 4.1 and 14.7% for Yi-34B.
  • Yi-34B has downloadable open weights; the other is API-only.

Side by side

Claude Opus 4.1Yi-34B
ProviderAnthropic01.AI
Noometry Index41.027.8
Released2025-08-052023-11-02
WeightsProprietaryOpen
Context window200K—
Max output32K—
Input $ / M tokens$15—
Output $ / M tokens$75—
Results tracked4823

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Category by category

Coding Claude Opus 4.1 leads

Claude Opus 4.1: 44.4 (#73), Yi-34B: 32.3 (#274)

BenchmarkClaude Opus 4.1Yi-34B
LMArena Coding14791112
SWE-bench Verified73.3%—
LMArena WebDev1390—
WeirdML45.9%—
ALE-Bench674.77—
AlgoTune1.34—

Agentic & Tool Use Not comparable

Claude Opus 4.1: 35.0 (#41), Yi-34B: —

BenchmarkClaude Opus 4.1Yi-34B
Terminal-Bench38%—
GDPval43.6%—
Cybench42%—
DeepResearch Bench48.3%—
LMArena Search1148—
METR Time Horizons66.8%—

Reasoning Claude Opus 4.1 leads

Claude Opus 4.1: 32.2 (#76), Yi-34B: 21.2 (#226)

BenchmarkClaude Opus 4.1Yi-34B
LMArena Hard Prompts14431104
Epoch Capabilities Index144.12117.39
SimpleBench60%—
Chess Puzzles7%—
EnigmaEval7.2%—
EBR-Bench7.9%—
Mystery Game Puzzles21%—
DTBench80%—
LMCA37.1%—
BIG-Bench Hard—71.7%
ForecastBench62—

Math Too close to call

Claude Opus 4.1: 22.3 (#277), Yi-34B: 21.6 (#282)

BenchmarkClaude Opus 4.1Yi-34B
LMArena Math14311114
FrontierMath (Tiers 1-3)12.6%—
FrontierMath Tier 42.4%—
OTIS Mock AIME 2024-202568.9%—
MATH Level 5—5.1%
FrontierMath (Feb 2025 set)7.2%—
FrontierMath Tier 4 (v1)4.2%—
GSM8K—76%

Knowledge Claude Opus 4.1 leads

Claude Opus 4.1: 42.0 (#101), Yi-34B: 7.5 (#309)

BenchmarkClaude Opus 4.1Yi-34B
GPQA Diamond77.3%14.7%
LMArena Expert14391061
Humanity's Last Exam11.5%—
Confabulations17.1%—
Vectara Hallucination Rate11.8%—
MMLU—76.3%

Multimodal Not comparable

Claude Opus 4.1: 26.8 (#119), Yi-34B: —

BenchmarkClaude Opus 4.1Yi-34B
VPCT35%—

Multilingual Claude Opus 4.1 leads

Claude Opus 4.1: 52.0 (#95), Yi-34B: 29.7 (#264)

BenchmarkClaude Opus 4.1Yi-34B
LMArena Non-English14051079
LMArena Chinese14271176
LMArena French14311081
LMArena German14131042
LMArena Japanese1378993
LMArena Korean1380959
LMArena Russian14221050
LMArena Spanish14481070

Instruction Following Claude Opus 4.1 leads

Claude Opus 4.1: 75.6 (#58), Yi-34B: 56.2 (#274)

BenchmarkClaude Opus 4.1Yi-34B
LMArena Instruction Following14351091

Long Context Claude Opus 4.1 leads

Claude Opus 4.1: 44.5 (#63), Yi-34B: 33.2 (#264)

BenchmarkClaude Opus 4.1Yi-34B
LMArena Longer Query14551094

Writing & Preference Claude Opus 4.1 leads

Claude Opus 4.1: 62.4 (#74), Yi-34B: 34.1 (#273)

BenchmarkClaude Opus 4.1Yi-34B
LMArena Text14191129
LMArena Creative Writing14121108
LMArena Multi-Turn14441113
Short-Story Creative Writing84.7%—

Frequently asked questions

Is Claude Opus 4.1 better than Yi-34B?

Claude Opus 4.1 is the stronger model overall, scoring 41.0 to 27.8 on the Noometry Index.

Is Claude Opus 4.1 or Yi-34B better for coding?

Claude Opus 4.1 scores higher on coding benchmarks: 44.4 versus 32.3 in the Noometry coding category.

How many benchmarks do Claude Opus 4.1 and Yi-34B share?

19 benchmarks have published results for both models. Claude Opus 4.1 has 48 scored results on Noometry and Yi-34B has 23.

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