Model comparison

GPT-5.4 mini vs Yi-34B

GPT-5.4 mini is the stronger model overall, scoring 45.0 to 27.8 on the Noometry Index.

Last verified . 19 shared benchmarks.

GPT-5.4 mini OpenAI

45.0

Rank #76 Confirmed

Yi-34B 01.AI

27.8

Rank #329 Confirmed

Summary

  • They share 19 benchmarks with published results for both. GPT-5.4 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 GPT-5.4 mini leads 51.5 to 7.5.
  • The biggest single-benchmark swing is GPQA Diamond: 86.9% for GPT-5.4 mini and 14.7% for Yi-34B.
  • Yi-34B has downloadable open weights; the other is API-only.

Side by side

GPT-5.4 mini and Yi-34B specifications
GPT-5.4 miniYi-34B
ProviderOpenAI01.AI
Noometry Index45.027.8
Released2026-03-172023-11-02
WeightsProprietaryOpen
Context window400K—
Max output128K—
Input $ / M tokens$0.75—
Output $ / M tokens$4.50—
Results tracked4623

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Category by category

Coding GPT-5.4 mini leads

GPT-5.4 mini: 45.2 (#72), Yi-34B: 32.3 (#274)

Coding benchmarks
BenchmarkGPT-5.4 miniYi-34B
LMArena Coding14381112
FrontierCode27%—
LMArena WebDev1397—
SciCode49.9%—
WeirdML60.3%—
ALE-Bench1,189—

Agentic & Tool Use Not comparable

GPT-5.4 mini: 29.9 (#81), Yi-34B: —

Agentic & Tool Use benchmarks
BenchmarkGPT-5.4 miniYi-34B
DeepResearch Bench36.3%—

Reasoning GPT-5.4 mini leads

GPT-5.4 mini: 30.4 (#85), Yi-34B: 21.2 (#226)

Reasoning benchmarks
BenchmarkGPT-5.4 miniYi-34B
LMArena Hard Prompts14241104
Epoch Capabilities Index148.84117.39
ARC-AGI-218.9%—
Kagi LLM Benchmark37.9%—
NYT Connections (extended)61.8%—
ARC-AGI-163.7%—
CritPt10%—
Chess Puzzles24%—
Thematic Generalization61.7%—
Mystery Game Puzzles11%—
DTBench80%—
LMCA40.8%—
BIG-Bench Hard—71.7%
ForecastBench57—

Math GPT-5.4 mini leads

GPT-5.4 mini: 45.5 (#75), Yi-34B: 21.6 (#282)

Math benchmarks
BenchmarkGPT-5.4 miniYi-34B
LMArena Math14191114
FrontierMath (Tiers 1-3)51.2%—
FrontierMath Tier 49.8%—
OTIS Mock AIME 2024-202588.9%—
ProofBench21%—
MATH Level 5—5.1%
FrontierMath (Feb 2025 set)28.3%—
FrontierMath Tier 4 (v1)2.1%—
GSM8K—76%

Knowledge GPT-5.4 mini leads

GPT-5.4 mini: 51.5 (#67), Yi-34B: 7.5 (#309)

Knowledge benchmarks
BenchmarkGPT-5.4 miniYi-34B
GPQA Diamond86.9%14.7%
LMArena Expert14351061
SimpleQA Verified29.4%—
Vectara Hallucination Rate5.5%—
MMLU—76.3%

Multimodal Not comparable

GPT-5.4 mini: 39.7 (#56), Yi-34B: —

Multimodal benchmarks
BenchmarkGPT-5.4 miniYi-34B
LMArena Vision1245—

Multilingual GPT-5.4 mini leads

GPT-5.4 mini: 51.9 (#96), Yi-34B: 29.7 (#264)

Multilingual benchmarks
BenchmarkGPT-5.4 miniYi-34B
LMArena Non-English14051079
LMArena Chinese14461176
LMArena French14401081
LMArena German14091042
LMArena Japanese1374993
LMArena Korean1368959
LMArena Russian14171050
LMArena Spanish14051070

Instruction Following GPT-5.4 mini leads

GPT-5.4 mini: 74.1 (#102), Yi-34B: 56.2 (#274)

Instruction Following benchmarks
BenchmarkGPT-5.4 miniYi-34B
LMArena Instruction Following14051091

Long Context GPT-5.4 mini leads

GPT-5.4 mini: 43.0 (#112), Yi-34B: 33.2 (#264)

Long Context benchmarks
BenchmarkGPT-5.4 miniYi-34B
LMArena Longer Query14071094

Writing & Preference GPT-5.4 mini leads

GPT-5.4 mini: 64.0 (#58), Yi-34B: 34.1 (#273)

Writing & Preference benchmarks
BenchmarkGPT-5.4 miniYi-34B
LMArena Text14121129
LMArena Creative Writing13701108
LMArena Multi-Turn14291113
EQ-Bench Creative Writing1665—

Frequently asked questions

Is GPT-5.4 mini better than Yi-34B?

GPT-5.4 mini is the stronger model overall, scoring 45.0 to 27.8 on the Noometry Index.

Is GPT-5.4 mini or Yi-34B better for coding?

GPT-5.4 mini scores higher on coding benchmarks: 45.2 versus 32.3 in the Noometry coding category.

How many benchmarks do GPT-5.4 mini and Yi-34B share?

19 benchmarks have published results for both models. GPT-5.4 mini has 46 scored results on Noometry and Yi-34B has 23.

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