Noometry

Model comparison

Claude Sonnet 5.5 vs QwQ Plus

Claude Sonnet 5.5 has enough public results to be ranked (#10); QwQ Plus does not yet, so treat this comparison as directional.

Last verified . 1 shared benchmarks.

Claude Sonnet 5.5 Anthropic

61.9

Rank #10 Confirmed

QwQ Plus Alibaba (Qwen)

38.0

Unranked Sparse

Summary

  • They share 1 benchmark with published results for both. Claude Sonnet 5.5 scores higher in 1 category and QwQ Plus in 0 categories; one gap is clear of the uncertainty.
  • The widest gap is in knowledge, where Claude Sonnet 5.5 leads 66.0 to 36.4.
  • The biggest single-benchmark swing is GPQA Diamond: 95.6% for Claude Sonnet 5.5 and 65.4% for QwQ Plus.
  • QwQ Plus is cheaper at $0.80 / $2.40 per million input/output tokens, against $2 / $10 for Claude Sonnet 5.5.
  • Claude Sonnet 5.5 accepts more context: 1M tokens versus 131K.

Side by side

Claude Sonnet 5.5QwQ Plus
ProviderAnthropicAlibaba (Qwen)
Noometry Index61.938.0
Released2026-09-282025-03-05
WeightsProprietaryProprietary
Context window1M131K
Max output128K8K
Input $ / M tokens$2$0.80
Output $ / M tokens$10$2.40
Results tracked321

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Category by category

Coding Not comparable

Claude Sonnet 5.5: 67.3 (#6), QwQ Plus: —

BenchmarkClaude Sonnet 5.5QwQ Plus
FrontierCode52.1%—
CursorBench55.5%—
LMArena WebDev1774—
FrontierSWE61.9%—
SciCode61%—
LMArena Coding1513—
ALE-Bench1,819—

Agentic & Tool Use Not comparable

Claude Sonnet 5.5: 45.0 (#16), QwQ Plus: —

BenchmarkClaude Sonnet 5.5QwQ Plus
APEX-Agents75.5%—

Reasoning Not comparable

Claude Sonnet 5.5: 54.0 (#28), QwQ Plus: —

BenchmarkClaude Sonnet 5.5QwQ Plus
NYT Connections (extended)80.5%—
CritPt31.4%—
LMArena Hard Prompts1495—
Mystery Game Puzzles65%—
Epoch Capabilities Index165.03—

Math Not comparable

Claude Sonnet 5.5: 87.9 (#6), QwQ Plus: —

BenchmarkClaude Sonnet 5.5QwQ Plus
FrontierMath (Tiers 1-3)88.8%—
FrontierMath Tier 480.5%—
OTIS Mock AIME 2024-2025100%—
ProofBench100%—
LMArena Math1510—
FrontierMath Erdős2.9%—

Knowledge Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 66.0 (#12), QwQ Plus: 36.4

BenchmarkClaude Sonnet 5.5QwQ Plus
GPQA Diamond95.6%65.4%
SimpleQA Verified46.5%—
LMArena Expert1540—

Multimodal Not comparable

Claude Sonnet 5.5: 51.5 (#6), QwQ Plus: —

BenchmarkClaude Sonnet 5.5QwQ Plus
LMArena Vision1289—
Furniture Assembly75%—

Multilingual Not comparable

Claude Sonnet 5.5: 55.3 (#30), QwQ Plus: —

BenchmarkClaude Sonnet 5.5QwQ Plus
LMArena Non-English1452—
LMArena Chinese1522—
LMArena Russian1451—

Instruction Following Not comparable

Claude Sonnet 5.5: 78.3 (#11), QwQ Plus: —

BenchmarkClaude Sonnet 5.5QwQ Plus
LMArena Instruction Following1495—

Long Context Not comparable

Claude Sonnet 5.5: 45.9 (#28), QwQ Plus: —

BenchmarkClaude Sonnet 5.5QwQ Plus
LMArena Longer Query1498—

Writing & Preference Not comparable

Claude Sonnet 5.5: 66.0 (#40), QwQ Plus: —

BenchmarkClaude Sonnet 5.5QwQ Plus
LMArena Text1471—
LMArena Creative Writing1465—
LMArena Multi-Turn1474—

Frequently asked questions

Is Claude Sonnet 5.5 better than QwQ Plus?

Claude Sonnet 5.5 has enough public results to be ranked (#10); QwQ Plus does not yet, so treat this comparison as directional.

Which is cheaper, Claude Sonnet 5.5 or QwQ Plus?

QwQ Plus is cheaper. It lists at $0.80 per million input tokens and $2.40 per million output tokens; Claude Sonnet 5.5 lists at $2 and $10.

Which has the bigger context window?

Claude Sonnet 5.5 does, with 1M tokens against 131K.

How many benchmarks do Claude Sonnet 5.5 and QwQ Plus share?

1 benchmark has published results for both models. Claude Sonnet 5.5 has 32 scored results on Noometry and QwQ Plus has 1.

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