Model comparison

o4-mini vs Yi-34B

o4-mini is the stronger model overall, scoring 41.6 to 27.8 on the Noometry Index.

Last verified . 20 shared benchmarks.

o4-mini OpenAI

41.6

Rank #132 Confirmed

Yi-34B 01.AI

27.8

Rank #329 Confirmed

Summary

  • They share 20 benchmarks with published results for both. o4-mini 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 o4-mini leads 43.6 to 7.5.
  • The biggest single-benchmark swing is MATH Level 5: 97.8% for o4-mini and 5.1% for Yi-34B.
  • Yi-34B has downloadable open weights; the other is API-only.

Side by side

o4-mini and Yi-34B specifications
o4-miniYi-34B
ProviderOpenAI01.AI
Noometry Index41.627.8
Released2025-04-162023-11-02
WeightsProprietaryOpen
Context window200K—
Max output100K—
Input $ / M tokens$1.10—
Output $ / M tokens$4.40—
Results tracked6023

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Category by category

Coding o4-mini leads

o4-mini: 40.9 (#127), Yi-34B: 32.3 (#274)

Coding benchmarks
Benchmarko4-miniYi-34B
LMArena Coding13681112
SWE-bench Verified (bash only)45%—
Aider Polyglot72%—
GSO3.6%—
WeirdML52.6%—
CadEval62%—
ALE-Bench826.17—
AlgoTune1.72—

Agentic & Tool Use Not comparable

o4-mini: 32.6 (#61), Yi-34B: —

Agentic & Tool Use benchmarks
Benchmarko4-miniYi-34B
Berkeley Function Calling Leaderboard53.2%—
GDPval25.3%—
METR Time Horizons63.9%—

Reasoning o4-mini leads

o4-mini: 24.6 (#162), Yi-34B: 21.2 (#226)

Reasoning benchmarks
Benchmarko4-miniYi-34B
LMArena Hard Prompts13511104
Epoch Capabilities Index145.64117.39
ARC-AGI-26.1%—
SimpleBench38.7%—
Kagi LLM Benchmark67.6%—
ARC-AGI-158.7%—
CritPt0.6%—
Chess Puzzles26%—
EnigmaEval9.2%—
Mystery Game Puzzles5%—
DTBench77.6%—
LMCA26.5%—
BIG-Bench Hard—71.7%
ForecastBench61.8—

Math o4-mini leads

o4-mini: 40.8 (#89), Yi-34B: 21.6 (#282)

Math benchmarks
Benchmarko4-miniYi-34B
LMArena Math13891114
MATH Level 597.8%5.1%
FrontierMath (Tiers 1-3)36.1%—
FrontierMath Tier 44.9%—
OTIS Mock AIME 2024-202581.7%—
Omni-MATH72%—
FrontierMath (Feb 2025 set)24.8%—
FrontierMath Tier 4 (v1)6.3%—
GSM8K—76%

Knowledge o4-mini leads

o4-mini: 43.6 (#91), Yi-34B: 7.5 (#309)

Knowledge benchmarks
Benchmarko4-miniYi-34B
GPQA Diamond79.6%14.7%
LMArena Expert13431061
Humanity's Last Exam18.1%—
SimpleQA Verified19.6%—
MMLU-Pro82%—
Confabulations15.8%—
Vectara Hallucination Rate18.6%—
GPQA (HELM)73.5%—
MMLU—76.3%

Multimodal Not comparable

o4-mini: 40.2 (#49), Yi-34B: —

Multimodal benchmarks
Benchmarko4-miniYi-34B
LMArena Vision1194—
GeoBench64%—
VPCT57.5%—

Multilingual o4-mini leads

o4-mini: 47.0 (#154), Yi-34B: 29.7 (#264)

Multilingual benchmarks
Benchmarko4-miniYi-34B
LMArena Non-English13371079
LMArena Chinese13541176
LMArena French13641081
LMArena German13361042
LMArena Japanese1308993
LMArena Korean1312959
LMArena Russian13341050
LMArena Spanish13471070

Instruction Following o4-mini leads

o4-mini: 75.2 (#68), Yi-34B: 56.2 (#274)

Instruction Following benchmarks
Benchmarko4-miniYi-34B
LMArena Instruction Following13211091
IFEval92.8%—

Long Context o4-mini leads

o4-mini: 45.5 (#33), Yi-34B: 33.2 (#264)

Long Context benchmarks
Benchmarko4-miniYi-34B
LMArena Longer Query13151094
Fiction.LiveBench77.8%—

Writing & Preference o4-mini leads

o4-mini: 54.0 (#152), Yi-34B: 34.1 (#273)

Writing & Preference benchmarks
Benchmarko4-miniYi-34B
LMArena Text13531129
LMArena Creative Writing12941108
LMArena Multi-Turn13501113
Short-Story Creative Writing75%—
WildBench85.4%—

Frequently asked questions

Is o4-mini better than Yi-34B?

o4-mini is the stronger model overall, scoring 41.6 to 27.8 on the Noometry Index.

Is o4-mini or Yi-34B better for coding?

o4-mini scores higher on coding benchmarks: 40.9 versus 32.3 in the Noometry coding category.

How many benchmarks do o4-mini and Yi-34B share?

20 benchmarks have published results for both models. o4-mini has 60 scored results on Noometry and Yi-34B has 23.

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