Noometry

Model comparison

Claude Sonnet 5 vs Qwen2.5-Coder (1.5B)

Claude Sonnet 5 has enough public results to be ranked (#29); Qwen2.5-Coder (1.5B) does not yet, so treat this comparison as directional.

Last verified . 1 shared benchmarks.

Claude Sonnet 5 Anthropic

54.6

Rank #29 Confirmed

Qwen2.5-Coder (1.5B) Alibaba (Qwen)

—

Unranked

Summary

  • They share 1 benchmark with published results for both.
  • Qwen2.5-Coder (1.5B) has downloadable open weights; the other is API-only.

Side by side

Claude Sonnet 5Qwen2.5-Coder (1.5B)
ProviderAnthropicAlibaba (Qwen)
Noometry Index54.6—
Released2026-06-292024-09-18
WeightsProprietaryOpen
Context window1M—
Max output128K—
Input $ / M tokens$2—
Output $ / M tokens$10—
Results tracked516

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Category by category

Coding Not comparable

Claude Sonnet 5: 55.5 (#26), Qwen2.5-Coder (1.5B): —

BenchmarkClaude Sonnet 5Qwen2.5-Coder (1.5B)
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), Qwen2.5-Coder (1.5B): —

BenchmarkClaude Sonnet 5Qwen2.5-Coder (1.5B)
APEX-Agents54.5%—
GBAEval65.3%—
LMArena Search1194—
Vending-Bench 26,378—

Reasoning Not comparable

Claude Sonnet 5: 49.1 (#39), Qwen2.5-Coder (1.5B): —

BenchmarkClaude Sonnet 5Qwen2.5-Coder (1.5B)
Epoch Capabilities Index156.21113.14
SimpleBench60.6%—
NYT Connections (extended)75.1%—
CritPt16.9%—
Chess Puzzles35%—
LMArena Hard Prompts1461—
Mystery Game Puzzles35%—
DTBench92.5%—
LMCA50%—
Surface Evolver Bench60%—
Bench to the Future 30.14—
ForecastBench61.1—
HellaSwag—76.8%
WinoGrande—72.9%

Math Not comparable

Claude Sonnet 5: 66.2 (#27), Qwen2.5-Coder (1.5B): —

BenchmarkClaude Sonnet 5Qwen2.5-Coder (1.5B)
FrontierMath (Tiers 1-3)65.6%—
FrontierMath Tier 429.3%—
OTIS Mock AIME 2024-202594.7%—
ProofBench77%—
LMArena Math1467—
GSM8K—86.7%

Knowledge Not comparable

Claude Sonnet 5: 55.6 (#47), Qwen2.5-Coder (1.5B): —

BenchmarkClaude Sonnet 5Qwen2.5-Coder (1.5B)
GPQA Diamond90.5%—
SimpleQA Verified33.7%—
LMArena Expert1490—
ARC (AI2) Challenge—60.9%
MMLU—68%

Multimodal Not comparable

Claude Sonnet 5: 42.4 (#31), Qwen2.5-Coder (1.5B): —

BenchmarkClaude Sonnet 5Qwen2.5-Coder (1.5B)
LMArena Vision1274—
Blueprint-Bench 224.9%—
LMArena Document1466—

Multilingual Not comparable

Claude Sonnet 5: 53.8 (#55), Qwen2.5-Coder (1.5B): —

BenchmarkClaude Sonnet 5Qwen2.5-Coder (1.5B)
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), Qwen2.5-Coder (1.5B): —

BenchmarkClaude Sonnet 5Qwen2.5-Coder (1.5B)
LMArena Instruction Following1452—

Long Context Not comparable

Claude Sonnet 5: 44.8 (#55), Qwen2.5-Coder (1.5B): —

BenchmarkClaude Sonnet 5Qwen2.5-Coder (1.5B)
LMArena Longer Query1463—

Writing & Preference Not comparable

Claude Sonnet 5: 69.2 (#25), Qwen2.5-Coder (1.5B): —

BenchmarkClaude Sonnet 5Qwen2.5-Coder (1.5B)
LMArena Text1442—
LMArena Creative Writing1416—
EQ-Bench Creative Writing1794—
EQ-Bench 41236—
LMArena Multi-Turn1454—

Frequently asked questions

Is Claude Sonnet 5 better than Qwen2.5-Coder (1.5B)?

Claude Sonnet 5 has enough public results to be ranked (#29); Qwen2.5-Coder (1.5B) does not yet, so treat this comparison as directional.

How many benchmarks do Claude Sonnet 5 and Qwen2.5-Coder (1.5B) share?

1 benchmark has published results for both models. Claude Sonnet 5 has 51 scored results on Noometry and Qwen2.5-Coder (1.5B) has 6.

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