Noometry

Model comparison

Claude Sonnet 5.5 vs Qwen3 Coder Plus

Claude Sonnet 5.5 has enough public results to be ranked (#10); Qwen3 Coder 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

Qwen3 Coder Plus Alibaba (Qwen)

—

Unranked

Summary

  • They share 1 benchmark with published results for both.
  • Qwen3 Coder Plus is cheaper at $1 / $5 per million input/output tokens, against $2 / $10 for Claude Sonnet 5.5.
  • Qwen3 Coder Plus accepts more context: 1.05M tokens versus 1M.
  • Qwen3 Coder Plus has downloadable open weights; the other is API-only.

Side by side

Claude Sonnet 5.5Qwen3 Coder Plus
ProviderAnthropicAlibaba (Qwen)
Noometry Index61.9—
Released2026-09-282025-07-23
WeightsProprietaryOpen
Context window1M1.05M
Max output128K66K
Input $ / M tokens$2$1
Output $ / M tokens$10$5
Results tracked321

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Category by category

Coding Not comparable

Claude Sonnet 5.5: 67.3 (#6), Qwen3 Coder Plus: —

BenchmarkClaude Sonnet 5.5Qwen3 Coder Plus
ALE-Bench1,819456.5
FrontierCode52.1%—
CursorBench55.5%—
LMArena WebDev1774—
FrontierSWE61.9%—
SciCode61%—
LMArena Coding1513—

Agentic & Tool Use Not comparable

Claude Sonnet 5.5: 45.0 (#16), Qwen3 Coder Plus: —

BenchmarkClaude Sonnet 5.5Qwen3 Coder Plus
APEX-Agents75.5%—

Reasoning Not comparable

Claude Sonnet 5.5: 54.0 (#28), Qwen3 Coder Plus: —

BenchmarkClaude Sonnet 5.5Qwen3 Coder 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), Qwen3 Coder Plus: —

BenchmarkClaude Sonnet 5.5Qwen3 Coder Plus
FrontierMath (Tiers 1-3)88.8%—
FrontierMath Tier 480.5%—
OTIS Mock AIME 2024-2025100%—
ProofBench100%—
LMArena Math1510—
FrontierMath Erdős2.9%—

Knowledge Not comparable

Claude Sonnet 5.5: 66.0 (#12), Qwen3 Coder Plus: —

BenchmarkClaude Sonnet 5.5Qwen3 Coder Plus
GPQA Diamond95.6%—
SimpleQA Verified46.5%—
LMArena Expert1540—

Multimodal Not comparable

Claude Sonnet 5.5: 51.5 (#6), Qwen3 Coder Plus: —

BenchmarkClaude Sonnet 5.5Qwen3 Coder Plus
LMArena Vision1289—
Furniture Assembly75%—

Multilingual Not comparable

Claude Sonnet 5.5: 55.3 (#30), Qwen3 Coder Plus: —

BenchmarkClaude Sonnet 5.5Qwen3 Coder Plus
LMArena Non-English1452—
LMArena Chinese1522—
LMArena Russian1451—

Instruction Following Not comparable

Claude Sonnet 5.5: 78.3 (#11), Qwen3 Coder Plus: —

BenchmarkClaude Sonnet 5.5Qwen3 Coder Plus
LMArena Instruction Following1495—

Long Context Not comparable

Claude Sonnet 5.5: 45.9 (#28), Qwen3 Coder Plus: —

BenchmarkClaude Sonnet 5.5Qwen3 Coder Plus
LMArena Longer Query1498—

Writing & Preference Not comparable

Claude Sonnet 5.5: 66.0 (#40), Qwen3 Coder Plus: —

BenchmarkClaude Sonnet 5.5Qwen3 Coder Plus
LMArena Text1471—
LMArena Creative Writing1465—
LMArena Multi-Turn1474—

Frequently asked questions

Is Claude Sonnet 5.5 better than Qwen3 Coder Plus?

Claude Sonnet 5.5 has enough public results to be ranked (#10); Qwen3 Coder Plus does not yet, so treat this comparison as directional.

Which is cheaper, Claude Sonnet 5.5 or Qwen3 Coder Plus?

Qwen3 Coder Plus is cheaper. It lists at $1 per million input tokens and $5 per million output tokens; Claude Sonnet 5.5 lists at $2 and $10.

Which has the bigger context window?

Qwen3 Coder Plus does, with 1.05M tokens against 1M.

How many benchmarks do Claude Sonnet 5.5 and Qwen3 Coder Plus share?

1 benchmark has published results for both models. Claude Sonnet 5.5 has 32 scored results on Noometry and Qwen3 Coder Plus has 1.

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