Noometry

Model comparison

Claude Sonnet 5 vs Qwen3.7 Flash

Claude Sonnet 5 is the stronger model overall, scoring 54.6 to 39.9 on the Noometry Index. Qwen3.7 Flash costs 73× less per token, which makes it the better buy when Claude Sonnet 5's lead doesn't matter for your workload.

Last verified . 7 shared benchmarks.

Claude Sonnet 5 Anthropic

54.6

Rank #29 Confirmed

Qwen3.7 Flash Alibaba (Qwen)

39.9

Rank #156 Confirmed

Summary

  • They share 7 benchmarks with published results for both. Claude Sonnet 5 scores higher in 3 categories and Qwen3.7 Flash in 0 categories; 3 gaps are clear of the uncertainty.
  • The widest gap is in math, where Claude Sonnet 5 leads 66.2 to 38.3.
  • The biggest single-benchmark swing is FrontierMath (Tiers 1-3): 65.6% for Claude Sonnet 5 and 19.3% for Qwen3.7 Flash.
  • Qwen3.7 Flash is cheaper at $0.03 / $0.13 per million input/output tokens, against $2 / $10 for Claude Sonnet 5.

Side by side

Claude Sonnet 5Qwen3.7 Flash
ProviderAnthropicAlibaba (Qwen)
Noometry Index54.639.9
Released2026-06-292026-07-15
WeightsProprietaryProprietary
Context window1M1M
Max output128K131K
Input $ / M tokens$2$0.03
Output $ / M tokens$10$0.13
Results tracked517

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Category by category

Coding Not comparable

Claude Sonnet 5: 55.5 (#26), Qwen3.7 Flash: —

BenchmarkClaude Sonnet 5Qwen3.7 Flash
DeepSWE53.8%—
FrontierCode42.7%—
CursorBench34.1%—
LMArena WebDev1541—
SciCode54.3%—
GSO37.3%—
WeirdML68.8%—
LMArena Coding1483—
ALE-Bench1,463—

Agentic & Tool Use Not comparable

Claude Sonnet 5: 42.8 (#18), Qwen3.7 Flash: —

BenchmarkClaude Sonnet 5Qwen3.7 Flash
APEX-Agents54.5%—
GBAEval65.3%—
LMArena Search1194—
Vending-Bench 26,378—

Reasoning Claude Sonnet 5 leads

Claude Sonnet 5: 49.1 (#39), Qwen3.7 Flash: 28.2 (#108)

BenchmarkClaude Sonnet 5Qwen3.7 Flash
NYT Connections (extended)75.1%43.8%
Chess Puzzles35%23%
Mystery Game Puzzles35%15%
Epoch Capabilities Index156.21144.64
SimpleBench60.6%—
CritPt16.9%—
LMArena Hard Prompts1461—
DTBench92.5%—
LMCA50%—
Surface Evolver Bench60%—
Bench to the Future 30.14—
ForecastBench61.1—

Math Claude Sonnet 5 leads

Claude Sonnet 5: 66.2 (#27), Qwen3.7 Flash: 38.3 (#140)

BenchmarkClaude Sonnet 5Qwen3.7 Flash
FrontierMath (Tiers 1-3)65.6%19.3%
OTIS Mock AIME 2024-202594.7%86.7%
FrontierMath Tier 429.3%—
ProofBench77%—
LMArena Math1467—

Knowledge Claude Sonnet 5 leads

Claude Sonnet 5: 55.6 (#47), Qwen3.7 Flash: 48.9 (#75)

BenchmarkClaude Sonnet 5Qwen3.7 Flash
GPQA Diamond90.5%82.3%
SimpleQA Verified33.7%—
LMArena Expert1490—

Multimodal Not comparable

Claude Sonnet 5: 42.4 (#31), Qwen3.7 Flash: —

BenchmarkClaude Sonnet 5Qwen3.7 Flash
LMArena Vision1274—
Blueprint-Bench 224.9%—
LMArena Document1466—

Multilingual Not comparable

Claude Sonnet 5: 53.8 (#55), Qwen3.7 Flash: —

BenchmarkClaude Sonnet 5Qwen3.7 Flash
LMArena Non-English1431—
LMArena Chinese1477—
LMArena French1460—
LMArena German1440—
LMArena Japanese1422—
LMArena Korean1411—
LMArena Russian1451—
LMArena Spanish1437—

Instruction Following Not comparable

Claude Sonnet 5: 76.3 (#41), Qwen3.7 Flash: —

BenchmarkClaude Sonnet 5Qwen3.7 Flash
LMArena Instruction Following1452—

Long Context Not comparable

Claude Sonnet 5: 44.8 (#55), Qwen3.7 Flash: —

BenchmarkClaude Sonnet 5Qwen3.7 Flash
LMArena Longer Query1463—

Writing & Preference Not comparable

Claude Sonnet 5: 69.2 (#25), Qwen3.7 Flash: —

BenchmarkClaude Sonnet 5Qwen3.7 Flash
LMArena Text1442—
LMArena Creative Writing1416—
EQ-Bench Creative Writing1794—
EQ-Bench 41236—
LMArena Multi-Turn1454—

Frequently asked questions

Is Claude Sonnet 5 better than Qwen3.7 Flash?

Claude Sonnet 5 is the stronger model overall, scoring 54.6 to 39.9 on the Noometry Index. Qwen3.7 Flash costs 73× less per token, which makes it the better buy when Claude Sonnet 5's lead doesn't matter for your workload.

Which is cheaper, Claude Sonnet 5 or Qwen3.7 Flash?

Qwen3.7 Flash is cheaper. It lists at $0.03 per million input tokens and $0.13 per million output tokens; Claude Sonnet 5 lists at $2 and $10.

Which has the bigger context window?

Both accept 1M tokens.

How many benchmarks do Claude Sonnet 5 and Qwen3.7 Flash share?

7 benchmarks have published results for both models. Claude Sonnet 5 has 51 scored results on Noometry and Qwen3.7 Flash has 7.

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