Noometry

Model comparison

Claude Sonnet 4.6 vs Yi-1.5-34B

Claude Sonnet 4.6 is the stronger model overall, scoring 50.3 to 30.6 on the Noometry Index.

Last verified . 18 shared benchmarks.

Claude Sonnet 4.6 Anthropic

50.3

Rank #50 Confirmed

Yi-1.5-34B 01.AI

30.6

Rank #289 Confirmed

Summary

  • They share 18 benchmarks with published results for both. Claude Sonnet 4.6 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 Sonnet 4.6 leads 51.7 to 14.8.
  • The biggest single-benchmark swing is GPQA Diamond: 87.4% for Claude Sonnet 4.6 and 32% for Yi-1.5-34B.
  • Yi-1.5-34B has downloadable open weights; the other is API-only.

Side by side

Claude Sonnet 4.6Yi-1.5-34B
ProviderAnthropic01.AI
Noometry Index50.330.6
Released2026-02-172024-05-13
WeightsProprietaryOpen
Context window1M—
Max output128K—
Input $ / M tokens$3—
Output $ / M tokens$15—
Results tracked5721

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Category by category

Coding Claude Sonnet 4.6 leads

Claude Sonnet 4.6: 46.3 (#67), Yi-1.5-34B: 32.4 (#272)

BenchmarkClaude Sonnet 4.6Yi-1.5-34B
LMArena Coding15041169
SWE-bench Verified75.2%—
DeepSWE29.9%—
FrontierCode24.3%—
LMArena WebDev1522—
SciCode46.8%—
WeirdML66.1%—
BigCodeBench Instruct—33.9%
BigCodeBench Complete—43.8%
ALE-Bench1,327—

Agentic & Tool Use Not comparable

Claude Sonnet 4.6: 39.1 (#28), Yi-1.5-34B: —

BenchmarkClaude Sonnet 4.6Yi-1.5-34B
Terminal-Bench53.4%—
APEX-Agents43%—
OSWorld 2.09.3%—
DeepResearch Bench54.9%—
OSWorld72.1%—
ExploitBench23.6%—
GBAEval48.8%—
GDP.pdf18%—
LMArena Search1221—
Vending-Bench 27,204—

Reasoning Claude Sonnet 4.6 leads

Claude Sonnet 4.6: 46.1 (#45), Yi-1.5-34B: 22.5 (#191)

BenchmarkClaude Sonnet 4.6Yi-1.5-34B
LMArena Hard Prompts14841160
ARC-AGI-260.4%—
NYT Connections (extended)80.9%—
ARC-AGI-186.5%—
CritPt3.1%—
Chess Puzzles13%—
Thematic Generalization76.3%—
Mystery Game Puzzles16%—
DTBench89.9%—
LMCA46.5%—
Epoch Capabilities Index152.24—
ForecastBench62—

Math Claude Sonnet 4.6 leads

Claude Sonnet 4.6: 52.9 (#49), Yi-1.5-34B: 27.5 (#249)

BenchmarkClaude Sonnet 4.6Yi-1.5-34B
LMArena Math14621182
OTIS Mock AIME 2024-202585.8%—
ProofBench45%—
MATH Level 5—25.5%
FrontierMath (Feb 2025 set)32.4%—
FrontierMath Tier 4 (v1)8.3%—

Knowledge Claude Sonnet 4.6 leads

Claude Sonnet 4.6: 51.7 (#65), Yi-1.5-34B: 14.8 (#295)

BenchmarkClaude Sonnet 4.6Yi-1.5-34B
GPQA Diamond87.4%32%
LMArena Expert15001144
SimpleQA Verified35.5%—
Vectara Hallucination Rate10.6%—

Multimodal Not comparable

Claude Sonnet 4.6: 38.0 (#68), Yi-1.5-34B: —

BenchmarkClaude Sonnet 4.6Yi-1.5-34B
LMArena Vision1283—
Blueprint-Bench 26.7%—
LMArena Document1482—

Multilingual Claude Sonnet 4.6 leads

Claude Sonnet 4.6: 54.4 (#41), Yi-1.5-34B: 32.3 (#256)

BenchmarkClaude Sonnet 4.6Yi-1.5-34B
LMArena Non-English14401121
LMArena Chinese14911213
LMArena French14651156
LMArena German14281111
LMArena Japanese14201021
LMArena Korean14111005
LMArena Russian14401091
LMArena Spanish14641121

Instruction Following Claude Sonnet 4.6 leads

Claude Sonnet 4.6: 77.4 (#25), Yi-1.5-34B: 59.2 (#257)

BenchmarkClaude Sonnet 4.6Yi-1.5-34B
LMArena Instruction Following14751139

Long Context Claude Sonnet 4.6 leads

Claude Sonnet 4.6: 45.3 (#44), Yi-1.5-34B: 34.6 (#248)

BenchmarkClaude Sonnet 4.6Yi-1.5-34B
LMArena Longer Query14791143

Writing & Preference Claude Sonnet 4.6 leads

Claude Sonnet 4.6: 70.2 (#22), Yi-1.5-34B: 37.4 (#257)

BenchmarkClaude Sonnet 4.6Yi-1.5-34B
LMArena Text14581173
LMArena Creative Writing14351135
LMArena Multi-Turn14641153
EQ-Bench Creative Writing1810—
EQ-Bench 41207—

Frequently asked questions

Is Claude Sonnet 4.6 better than Yi-1.5-34B?

Claude Sonnet 4.6 is the stronger model overall, scoring 50.3 to 30.6 on the Noometry Index.

Is Claude Sonnet 4.6 or Yi-1.5-34B better for coding?

Claude Sonnet 4.6 scores higher on coding benchmarks: 46.3 versus 32.4 in the Noometry coding category.

How many benchmarks do Claude Sonnet 4.6 and Yi-1.5-34B share?

18 benchmarks have published results for both models. Claude Sonnet 4.6 has 57 scored results on Noometry and Yi-1.5-34B has 21.

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