Noometry

Model comparison

Claude Sonnet 4.6 vs Hy3

Claude Sonnet 4.6 is the stronger model overall, scoring 50.3 to 44.2 on the Noometry Index. Hy3 costs 42× less per token, which makes it the better buy when Claude Sonnet 4.6's lead doesn't matter for your workload.

Last verified . 19 shared benchmarks.

Claude Sonnet 4.6 Anthropic

50.3

Rank #50 Confirmed

Hy3 Tencent

44.2

Rank #79 Confirmed

Summary

  • They share 19 benchmarks with published results for both. Claude Sonnet 4.6 scores higher in 7 categories and Hy3 in 1 category; 6 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Claude Sonnet 4.6 leads 46.1 to 26.1.
  • The biggest single-benchmark swing is NYT Connections (extended): 80.9% for Claude Sonnet 4.6 and 41.2% for Hy3.
  • Hy3 is cheaper at $0.0825 / $0.33 per million input/output tokens, against $3 / $15 for Claude Sonnet 4.6.
  • Claude Sonnet 4.6 accepts more context: 1M tokens versus 262K.
  • Hy3 has downloadable open weights; the other is API-only.

Side by side

Claude Sonnet 4.6Hy3
ProviderAnthropicTencent
Noometry Index50.344.2
Released2026-02-172026-07-06
WeightsProprietaryOpen
Context window1M262K
Max output128K128K
Input $ / M tokens$3$0.0825
Output $ / M tokens$15$0.33
Results tracked5719

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Category by category

Coding Too close to call

Claude Sonnet 4.6: 46.3 (#67), Hy3: 46.8 (#63)

BenchmarkClaude Sonnet 4.6Hy3
LMArena WebDev15221508
LMArena Coding15041464
SWE-bench Verified75.2%—
DeepSWE29.9%—
FrontierCode24.3%—
SciCode46.8%—
WeirdML66.1%—
ALE-Bench1,327—

Agentic & Tool Use Not comparable

Claude Sonnet 4.6: 39.1 (#28), Hy3: —

BenchmarkClaude Sonnet 4.6Hy3
Terminal-Bench53.4%—
APEX-Agents43%—
OSWorld 2.09.3%—
DeepResearch Bench54.9%—
OSWorld72.1%—
ExploitBench23.6%—
GBAEval48.8%—
GDP.pdf18%—
LMArena Search1221—
Vending-Bench 27,204—

Reasoning Claude Sonnet 4.6 leads

Claude Sonnet 4.6: 46.1 (#45), Hy3: 26.1 (#136)

BenchmarkClaude Sonnet 4.6Hy3
NYT Connections (extended)80.9%41.2%
LMArena Hard Prompts14841447
ARC-AGI-260.4%—
ARC-AGI-186.5%—
CritPt3.1%—
Chess Puzzles13%—
Thematic Generalization76.3%—
Mystery Game Puzzles16%—
DTBench89.9%—
LMCA46.5%—
Epoch Capabilities Index152.24—
ForecastBench62—

Math Claude Sonnet 4.6 leads

Claude Sonnet 4.6: 52.9 (#49), Hy3: 40.1 (#93)

BenchmarkClaude Sonnet 4.6Hy3
LMArena Math14621475
OTIS Mock AIME 2024-202585.8%—
ProofBench45%—
FrontierMath (Feb 2025 set)32.4%—
FrontierMath Tier 4 (v1)8.3%—

Knowledge Claude Sonnet 4.6 leads

Claude Sonnet 4.6: 51.7 (#65), Hy3: 40.8 (#114)

BenchmarkClaude Sonnet 4.6Hy3
LMArena Expert15001460
GPQA Diamond87.4%—
SimpleQA Verified35.5%—
Vectara Hallucination Rate10.6%—

Multimodal Not comparable

Claude Sonnet 4.6: 38.0 (#68), Hy3: —

BenchmarkClaude Sonnet 4.6Hy3
LMArena Vision1283—
Blueprint-Bench 26.7%—
LMArena Document1482—

Multilingual Too close to call

Claude Sonnet 4.6: 54.4 (#41), Hy3: 53.5 (#65)

BenchmarkClaude Sonnet 4.6Hy3
LMArena Non-English14401426
LMArena Chinese14911493
LMArena French14651461
LMArena German14281439
LMArena Japanese14201392
LMArena Korean14111395
LMArena Russian14401432
LMArena Spanish14641456

Instruction Following Claude Sonnet 4.6 leads

Claude Sonnet 4.6: 77.4 (#25), Hy3: 75.1 (#70)

BenchmarkClaude Sonnet 4.6Hy3
LMArena Instruction Following14751426

Long Context Claude Sonnet 4.6 leads

Claude Sonnet 4.6: 45.3 (#44), Hy3: 44.1 (#75)

BenchmarkClaude Sonnet 4.6Hy3
LMArena Longer Query14791442

Writing & Preference Claude Sonnet 4.6 leads

Claude Sonnet 4.6: 70.2 (#22), Hy3: 62.2 (#81)

BenchmarkClaude Sonnet 4.6Hy3
LMArena Text14581439
LMArena Creative Writing14351402
LMArena Multi-Turn14641436
EQ-Bench Creative Writing1810—
EQ-Bench 41207—

Frequently asked questions

Is Claude Sonnet 4.6 better than Hy3?

Claude Sonnet 4.6 is the stronger model overall, scoring 50.3 to 44.2 on the Noometry Index. Hy3 costs 42× less per token, which makes it the better buy when Claude Sonnet 4.6's lead doesn't matter for your workload.

Which is cheaper, Claude Sonnet 4.6 or Hy3?

Hy3 is cheaper. It lists at $0.0825 per million input tokens and $0.33 per million output tokens; Claude Sonnet 4.6 lists at $3 and $15.

Is Claude Sonnet 4.6 or Hy3 better for coding?

They score almost the same on coding (46.3 vs 46.8); test both on your own repository before choosing.

Which has the bigger context window?

Claude Sonnet 4.6 does, with 1M tokens against 262K.

How many benchmarks do Claude Sonnet 4.6 and Hy3 share?

19 benchmarks have published results for both models. Claude Sonnet 4.6 has 57 scored results on Noometry and Hy3 has 19.

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