Noometry

Model comparison

Claude Opus 5.5 vs Hy3

Claude Opus 5.5 is the stronger model overall, scoring 68.6 to 44.2 on the Noometry Index. Hy3 costs 35× less per token, which makes it the better buy when Claude Opus 5.5's lead doesn't matter for your workload.

Last verified . 16 shared benchmarks.

Claude Opus 5.5 Anthropic

68.6

Rank #3 Confirmed

Hy3 Tencent

44.2

Rank #79 Confirmed

Summary

  • They share 16 benchmarks with published results for both. Claude Opus 5.5 scores higher in 8 categories and Hy3 in 0 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Claude Opus 5.5 leads 80.2 to 26.1.
  • The biggest single-benchmark swing is NYT Connections (extended): 88.5% for Claude Opus 5.5 and 41.2% for Hy3.
  • Hy3 is cheaper at $0.13 / $0.53 per million input/output tokens, against $4 / $20 for Claude Opus 5.5.
  • Claude Opus 5.5 accepts more context: 1M tokens versus 262K.
  • Hy3 has downloadable open weights; the other is API-only.

Side by side

Claude Opus 5.5Hy3
ProviderAnthropicTencent
Noometry Index68.644.2
Released2026-09-222026-07-06
WeightsProprietaryOpen
Context window1M262K
Max output128K128K
Input $ / M tokens$4$0.13
Output $ / M tokens$20$0.53
Results tracked4419

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Category by category

Coding Claude Opus 5.5 leads

Claude Opus 5.5: 71.9 (#3), Hy3: 46.8 (#63)

BenchmarkClaude Opus 5.5Hy3
LMArena WebDev18131508
LMArena Coding15471464
FrontierCode54.6%—
CursorBench57.8%—
FrontierSWE62.3%—
SciCode66.9%—
MirrorCode77.4%—
ALE-Bench2,147—

Agentic & Tool Use Not comparable

Claude Opus 5.5: 45.3 (#15), Hy3: —

BenchmarkClaude Opus 5.5Hy3
APEX-Agents73.5%—
GDP.pdf30.6%—
Vending-Bench 29,235—

Reasoning Claude Opus 5.5 leads

Claude Opus 5.5: 80.2 (#3), Hy3: 26.1 (#136)

BenchmarkClaude Opus 5.5Hy3
NYT Connections (extended)88.5%41.2%
LMArena Hard Prompts15351447
ARC-AGI-293.3%—
ARC-AGI-198.5%—
CritPt31.7%—
EBR-Bench71.4%—
Mystery Game Puzzles71%—
DTBench98.9%—
LMCA68.2%—
Epoch Capabilities Index167.33—

Math Claude Opus 5.5 leads

Claude Opus 5.5: 91.8 (#3), Hy3: 40.1 (#93)

BenchmarkClaude Opus 5.5Hy3
LMArena Math15061475
FrontierMath (Tiers 1-3)91.2%—
FrontierMath Tier 495%—
OTIS Mock AIME 2024-2025100%—
ProofBench100%—
FrontierMath Erdős2.9%—

Knowledge Claude Opus 5.5 leads

Claude Opus 5.5: 66.4 (#10), Hy3: 40.8 (#114)

BenchmarkClaude Opus 5.5Hy3
LMArena Expert15471460
GPQA Diamond90.6%—
SimpleQA Verified72.2%—

Multimodal Not comparable

Claude Opus 5.5: 57.8 (#1), Hy3: —

BenchmarkClaude Opus 5.5Hy3
LMArena Vision1321—
Blueprint-Bench 251.2%—
Furniture Assembly83.3%—

Multilingual Claude Opus 5.5 leads

Claude Opus 5.5: 59.1 (#2), Hy3: 53.5 (#65)

BenchmarkClaude Opus 5.5Hy3
LMArena Non-English15071426
LMArena Chinese15881493
LMArena French15141461
LMArena Russian15201432
LMArena Spanish15071456
LMArena German—1439
LMArena Japanese—1392
LMArena Korean—1395

Instruction Following Claude Opus 5.5 leads

Claude Opus 5.5: 80.0 (#3), Hy3: 75.1 (#70)

BenchmarkClaude Opus 5.5Hy3
LMArena Instruction Following15371426

Long Context Claude Opus 5.5 leads

Claude Opus 5.5: 47.1 (#19), Hy3: 44.1 (#75)

BenchmarkClaude Opus 5.5Hy3
LMArena Longer Query15321442

Writing & Preference Claude Opus 5.5 leads

Claude Opus 5.5: 78.2 (#3), Hy3: 62.2 (#81)

BenchmarkClaude Opus 5.5Hy3
LMArena Text15151439
LMArena Creative Writing15331402
LMArena Multi-Turn14991436
EQ-Bench Creative Writing2050—

Frequently asked questions

Is Claude Opus 5.5 better than Hy3?

Claude Opus 5.5 is the stronger model overall, scoring 68.6 to 44.2 on the Noometry Index. Hy3 costs 35× less per token, which makes it the better buy when Claude Opus 5.5's lead doesn't matter for your workload.

Which is cheaper, Claude Opus 5.5 or Hy3?

Hy3 is cheaper. It lists at $0.13 per million input tokens and $0.53 per million output tokens; Claude Opus 5.5 lists at $4 and $20.

Is Claude Opus 5.5 or Hy3 better for coding?

Claude Opus 5.5 scores higher on coding benchmarks: 71.9 versus 46.8 in the Noometry coding category.

Which has the bigger context window?

Claude Opus 5.5 does, with 1M tokens against 262K.

How many benchmarks do Claude Opus 5.5 and Hy3 share?

16 benchmarks have published results for both models. Claude Opus 5.5 has 44 scored results on Noometry and Hy3 has 19.

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