Noometry

Model comparison

Claude Opus 4.1 vs Yi-34B

Claude Opus 4.1 is the stronger model overall, scoring 40.8 to 27.4 on the Noometry Index.

Last verified . 19 shared benchmarks.

Claude Opus 4.1 Anthropic

40.8

Rank #136 Confirmed

Yi-34B 01.AI

27.4

Rank #325 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; 8 gaps are clear of the uncertainty.
  • The widest gap is in knowledge, where Claude Opus 4.1 leads 41.9 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 Index40.827.4
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: 44.3 (#69), Yi-34B: 31.8 (#269)

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: 34.8 (#38), 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: 31.6 (#70), Yi-34B: 20.3 (#222)

BenchmarkClaude Opus 4.1Yi-34B
LMArena Hard Prompts14431104
Epoch Capabilities Index144.11117.28
SimpleBench60%—
Chess Puzzles7%—
EnigmaEval7.2%—
EBR-Bench7.9%—
Mystery Game Puzzles21%—
DTBench80%—
LMCA37.1%—
BIG-Bench Hard—71.7%
ForecastBench62—

Math Claude Opus 4.1 leads

Claude Opus 4.1: 22.0 (#267), Yi-34B: 19.8 (#277)

BenchmarkClaude Opus 4.1Yi-34B
LMArena Math14301114
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: 41.9 (#93), Yi-34B: 7.5 (#304)

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: 26.2 (#114), Yi-34B: —

BenchmarkClaude Opus 4.1Yi-34B
VPCT35%—

Multilingual Claude Opus 4.1 leads

Claude Opus 4.1: 52.1 (#90), Yi-34B: 29.9 (#259)

BenchmarkClaude Opus 4.1Yi-34B
LMArena Non-English14051079
LMArena Chinese14271175
LMArena French14321080
LMArena German14121042
LMArena Japanese1378993
LMArena Korean1381959
LMArena Russian14211050
LMArena Spanish14481070

Instruction Following Claude Opus 4.1 leads

Claude Opus 4.1: 75.8 (#53), Yi-34B: 56.4 (#269)

BenchmarkClaude Opus 4.1Yi-34B
LMArena Instruction Following14361091

Long Context Claude Opus 4.1 leads

Claude Opus 4.1: 44.5 (#60), Yi-34B: 33.2 (#259)

BenchmarkClaude Opus 4.1Yi-34B
LMArena Longer Query14551094

Writing & Preference Claude Opus 4.1 leads

Claude Opus 4.1: 62.6 (#70), Yi-34B: 34.3 (#268)

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 40.8 to 27.4 on the Noometry Index.

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

Claude Opus 4.1 scores higher on coding benchmarks: 44.3 versus 31.8 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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