Noometry

Model comparison

GPT-4.1 vs Hy4 preview

Hy4 preview is the stronger model overall, scoring 44.6 to 35.7 on the Noometry Index.

Last verified . 0 shared benchmarks.

GPT-4.1 OpenAI

35.7

Rank #215 Confirmed

Hy4 preview Tencent

44.6

Rank #73 Reported

Summary

  • The widest gap is in math, where Hy4 preview leads 54.5 to 21.4.
  • Hy4 preview is cheaper at $0.83 / $2.50 per million input/output tokens, against $2 / $8 for GPT-4.1.
  • Hy4 preview accepts more context: 1.05M tokens versus 1.05M.
  • Hy4 preview has downloadable open weights; the other is API-only.

Side by side

GPT-4.1Hy4 preview
ProviderOpenAITencent
Noometry Index35.744.6
Released2025-04-142026-08-28
WeightsProprietaryOpen
Context window1.05M1.05M
Max output33K64K
Input $ / M tokens$2$0.83
Output $ / M tokens$8$2.50
Results tracked523

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Category by category

Coding Hy4 preview leads

GPT-4.1: 34.2 (#228), Hy4 preview: 51.4 (#36)

BenchmarkGPT-4.1Hy4 preview
SWE-bench Verified48.5%—
SWE-bench Verified (bash only)39.6%—
Aider Polyglot52.4%—
LMArena WebDev—1633
WeirdML39%—
LMArena Coding1391—
CadEval42%—
ALE-Bench558.1—

Agentic & Tool Use Not comparable

GPT-4.1: 34.4 (#40), Hy4 preview: —

BenchmarkGPT-4.1Hy4 preview
Berkeley Function Calling Leaderboard54%—

Reasoning Hy4 preview leads

GPT-4.1: 11.7 (#334), Hy4 preview: 30.6 (#75)

BenchmarkGPT-4.1Hy4 preview
ARC-AGI-20.4%—
SimpleBench27%—
Kagi LLM Benchmark52.3%—
NYT Connections (extended)—68.2%
ARC-AGI-15.5%—
Chess Puzzles6%—
EnigmaEval2.2%—
LMArena Hard Prompts1384—
DTBench68.3%—
LMCA25.6%—
Epoch Capabilities Index136.79—
ForecastBench61.5—

Math Hy4 preview leads

GPT-4.1: 21.4 (#269), Hy4 preview: 54.5 (#37)

BenchmarkGPT-4.1Hy4 preview
FrontierMath (Tiers 1-3)6%—
OTIS Mock AIME 2024-202538.3%—
ProofBench—75%
Omni-MATH47.1%—
LMArena Math1369—
MATH Level 583%—
FrontierMath (Feb 2025 set)5.5%—
FrontierMath Tier 4 (v1)0%—

Knowledge Not comparable

GPT-4.1: 37.0 (#152), Hy4 preview: —

BenchmarkGPT-4.1Hy4 preview
GPQA Diamond66.9%—
Humanity's Last Exam5.4%—
SimpleQA Verified31.1%—
MMLU-Pro81.1%—
Vectara Hallucination Rate5.6%—
GPQA (HELM)65.9%—
LMArena Expert1364—

Multimodal Not comparable

GPT-4.1: 37.5 (#66), Hy4 preview: —

BenchmarkGPT-4.1Hy4 preview
LMArena Vision1210—
GeoBench72%—

Multilingual Not comparable

GPT-4.1: 49.6 (#128), Hy4 preview: —

BenchmarkGPT-4.1Hy4 preview
LMArena Non-English1370—
LMArena Chinese1382—
LMArena French1383—
LMArena German1380—
LMArena Japanese1320—
LMArena Korean1339—
LMArena Russian1377—
LMArena Spanish1375—

Instruction Following Not comparable

GPT-4.1: 71.5 (#148), Hy4 preview: —

BenchmarkGPT-4.1Hy4 preview
IFEval83.8%—
LMArena Instruction Following1367—

Long Context Not comparable

GPT-4.1: 40.0 (#158), Hy4 preview: —

BenchmarkGPT-4.1Hy4 preview
Fiction.LiveBench63.9%—
LMArena Longer Query1385—

Writing & Preference Not comparable

GPT-4.1: 57.8 (#120), Hy4 preview: —

BenchmarkGPT-4.1Hy4 preview
LMArena Text1383—
LMArena Creative Writing1363—
EQ-Bench Creative Writing1420—
WildBench85.4%—
LMArena Multi-Turn1398—

Frequently asked questions

Is GPT-4.1 better than Hy4 preview?

Hy4 preview is the stronger model overall, scoring 44.6 to 35.7 on the Noometry Index.

Which is cheaper, GPT-4.1 or Hy4 preview?

Hy4 preview is cheaper. It lists at $0.83 per million input tokens and $2.50 per million output tokens; GPT-4.1 lists at $2 and $8.

Is GPT-4.1 or Hy4 preview better for coding?

Hy4 preview scores higher on coding benchmarks: 51.4 versus 34.2 in the Noometry coding category.

Which has the bigger context window?

Hy4 preview does, with 1.05M tokens against 1.05M.

How many benchmarks do GPT-4.1 and Hy4 preview share?

0 benchmarks have published results for both models. GPT-4.1 has 52 scored results on Noometry and Hy4 preview has 3.

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