Noometry

Model comparison

GPT-5.4 mini vs Yi-Lightning

GPT-5.4 mini is the stronger model overall, scoring 45.0 to 37.1 on the Noometry Index.

Last verified . 17 shared benchmarks.

GPT-5.4 mini OpenAI

45.0

Rank #76 Confirmed

Yi-Lightning 01.AI

37.1

Rank #209 Confirmed

Summary

  • They share 17 benchmarks with published results for both. GPT-5.4 mini scores higher in 8 categories and Yi-Lightning in 0 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in coding, where GPT-5.4 mini leads 45.2 to 27.4.

Side by side

GPT-5.4 miniYi-Lightning
ProviderOpenAI01.AI
Noometry Index45.037.1
Released2026-03-172024-12-02
WeightsProprietaryProprietary
Context window400K—
Max output128K—
Input $ / M tokens$0.75—
Output $ / M tokens$4.50—
Results tracked4618

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Category by category

Coding GPT-5.4 mini leads

GPT-5.4 mini: 45.2 (#72), Yi-Lightning: 27.4 (#320)

BenchmarkGPT-5.4 miniYi-Lightning
LMArena Coding14381312
FrontierCode27%—
Aider Polyglot—12.9%
LMArena WebDev1397—
SciCode49.9%—
WeirdML60.3%—
ALE-Bench1,189—

Agentic & Tool Use Not comparable

GPT-5.4 mini: 29.9 (#81), Yi-Lightning: —

BenchmarkGPT-5.4 miniYi-Lightning
DeepResearch Bench36.3%—

Reasoning GPT-5.4 mini leads

GPT-5.4 mini: 30.4 (#85), Yi-Lightning: 25.9 (#139)

BenchmarkGPT-5.4 miniYi-Lightning
LMArena Hard Prompts14241302
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%—
Epoch Capabilities Index148.84—
ForecastBench57—

Math GPT-5.4 mini leads

GPT-5.4 mini: 45.5 (#75), Yi-Lightning: 36.2 (#172)

BenchmarkGPT-5.4 miniYi-Lightning
LMArena Math14191300
FrontierMath (Tiers 1-3)51.2%—
FrontierMath Tier 49.8%—
OTIS Mock AIME 2024-202588.9%—
ProofBench21%—
FrontierMath (Feb 2025 set)28.3%—
FrontierMath Tier 4 (v1)2.1%—

Knowledge GPT-5.4 mini leads

GPT-5.4 mini: 51.5 (#67), Yi-Lightning: 35.4 (#185)

BenchmarkGPT-5.4 miniYi-Lightning
LMArena Expert14351286
GPQA Diamond86.9%—
SimpleQA Verified29.4%—
Vectara Hallucination Rate5.5%—

Multimodal Not comparable

GPT-5.4 mini: 39.7 (#56), Yi-Lightning: —

BenchmarkGPT-5.4 miniYi-Lightning
LMArena Vision1245—

Multilingual GPT-5.4 mini leads

GPT-5.4 mini: 51.9 (#96), Yi-Lightning: 42.2 (#196)

BenchmarkGPT-5.4 miniYi-Lightning
LMArena Non-English14051269
LMArena Chinese14461320
LMArena French14401305
LMArena German14091267
LMArena Japanese13741228
LMArena Korean13681192
LMArena Russian14171255
LMArena Spanish14051315

Instruction Following GPT-5.4 mini leads

GPT-5.4 mini: 74.1 (#102), Yi-Lightning: 67.4 (#196)

BenchmarkGPT-5.4 miniYi-Lightning
LMArena Instruction Following14051278

Long Context GPT-5.4 mini leads

GPT-5.4 mini: 43.0 (#112), Yi-Lightning: 39.4 (#181)

BenchmarkGPT-5.4 miniYi-Lightning
LMArena Longer Query14071297

Writing & Preference GPT-5.4 mini leads

GPT-5.4 mini: 64.0 (#58), Yi-Lightning: 50.2 (#184)

BenchmarkGPT-5.4 miniYi-Lightning
LMArena Text14121302
LMArena Creative Writing13701280
LMArena Multi-Turn14291311
EQ-Bench Creative Writing1665—

Frequently asked questions

Is GPT-5.4 mini better than Yi-Lightning?

GPT-5.4 mini is the stronger model overall, scoring 45.0 to 37.1 on the Noometry Index.

Is GPT-5.4 mini or Yi-Lightning better for coding?

GPT-5.4 mini scores higher on coding benchmarks: 45.2 versus 27.4 in the Noometry coding category.

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

17 benchmarks have published results for both models. GPT-5.4 mini has 46 scored results on Noometry and Yi-Lightning has 18.

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