Noometry

Model comparison

GPT-5.4 mini vs Hy3

GPT-5.4 mini and Hy3 score almost the same on the Noometry Index (45.0 vs 44.2), so choose on price, context window or the category you care about most.

Last verified . 19 shared benchmarks.

GPT-5.4 mini OpenAI

45.0

Rank #76 Confirmed

Hy3 Tencent

44.2

Rank #79 Confirmed

Summary

  • They share 19 benchmarks with published results for both. GPT-5.4 mini scores higher in 4 categories and Hy3 in 4 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in knowledge, where GPT-5.4 mini leads 51.5 to 40.8.
  • The biggest single-benchmark swing is NYT Connections (extended): 61.8% for GPT-5.4 mini and 41.2% for Hy3.
  • Hy3 is cheaper at $0.0825 / $0.33 per million input/output tokens, against $0.75 / $4.50 for GPT-5.4 mini.
  • GPT-5.4 mini accepts more context: 400K tokens versus 262K.
  • Hy3 has downloadable open weights; the other is API-only.

Side by side

GPT-5.4 miniHy3
ProviderOpenAITencent
Noometry Index45.044.2
Released2026-03-172026-07-06
WeightsProprietaryOpen
Context window400K262K
Max output128K128K
Input $ / M tokens$0.75$0.0825
Output $ / M tokens$4.50$0.33
Results tracked4619

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Category by category

Coding Hy3 leads

GPT-5.4 mini: 45.2 (#72), Hy3: 46.8 (#63)

BenchmarkGPT-5.4 miniHy3
LMArena WebDev13971508
LMArena Coding14381464
FrontierCode27%—
SciCode49.9%—
WeirdML60.3%—
ALE-Bench1,189—

Agentic & Tool Use Not comparable

GPT-5.4 mini: 29.9 (#81), Hy3: —

BenchmarkGPT-5.4 miniHy3
DeepResearch Bench36.3%—

Reasoning GPT-5.4 mini leads

GPT-5.4 mini: 30.4 (#85), Hy3: 26.1 (#136)

BenchmarkGPT-5.4 miniHy3
NYT Connections (extended)61.8%41.2%
LMArena Hard Prompts14241447
ARC-AGI-218.9%—
Kagi LLM Benchmark37.9%—
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), Hy3: 40.1 (#93)

BenchmarkGPT-5.4 miniHy3
LMArena Math14191475
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), Hy3: 40.8 (#114)

BenchmarkGPT-5.4 miniHy3
LMArena Expert14351460
GPQA Diamond86.9%—
SimpleQA Verified29.4%—
Vectara Hallucination Rate5.5%—

Multimodal Not comparable

GPT-5.4 mini: 39.7 (#56), Hy3: —

BenchmarkGPT-5.4 miniHy3
LMArena Vision1245—

Multilingual Hy3 leads

GPT-5.4 mini: 51.9 (#96), Hy3: 53.5 (#65)

BenchmarkGPT-5.4 miniHy3
LMArena Non-English14051426
LMArena Chinese14461493
LMArena French14401461
LMArena German14091439
LMArena Japanese13741392
LMArena Korean13681395
LMArena Russian14171432
LMArena Spanish14051456

Instruction Following Hy3 leads

GPT-5.4 mini: 74.1 (#102), Hy3: 75.1 (#70)

BenchmarkGPT-5.4 miniHy3
LMArena Instruction Following14051426

Long Context Hy3 leads

GPT-5.4 mini: 43.0 (#112), Hy3: 44.1 (#75)

BenchmarkGPT-5.4 miniHy3
LMArena Longer Query14071442

Writing & Preference GPT-5.4 mini leads

GPT-5.4 mini: 64.0 (#58), Hy3: 62.2 (#81)

BenchmarkGPT-5.4 miniHy3
LMArena Text14121439
LMArena Creative Writing13701402
LMArena Multi-Turn14291436
EQ-Bench Creative Writing1665—

Frequently asked questions

Is GPT-5.4 mini better than Hy3?

GPT-5.4 mini and Hy3 score almost the same on the Noometry Index (45.0 vs 44.2), so choose on price, context window or the category you care about most.

Which is cheaper, GPT-5.4 mini or Hy3?

Hy3 is cheaper. It lists at $0.0825 per million input tokens and $0.33 per million output tokens; GPT-5.4 mini lists at $0.75 and $4.50.

Is GPT-5.4 mini or Hy3 better for coding?

Hy3 scores higher on coding benchmarks: 46.8 versus 45.2 in the Noometry coding category.

Which has the bigger context window?

GPT-5.4 mini does, with 400K tokens against 262K.

How many benchmarks do GPT-5.4 mini and Hy3 share?

19 benchmarks have published results for both models. GPT-5.4 mini has 46 scored results on Noometry and Hy3 has 19.

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