Noometry

Model comparison

Claude Sonnet 4.6 vs Qwen3.8 Flash

Claude Sonnet 4.6 has enough public results to be ranked (#42); Qwen3.8 Flash does not yet, so treat this comparison as directional.

Last verified . 1 shared benchmarks.

Claude Sonnet 4.6 Anthropic

50.1

Rank #42 Confirmed

Qwen3.8 Flash Alibaba (Qwen)

35.1

Unranked Sparse

Summary

  • They share 1 benchmark with published results for both. Claude Sonnet 4.6 scores higher in 1 category and Qwen3.8 Flash in 0 categories; one gap is clear of the uncertainty.
  • The widest gap is in agentic & tool use, where Claude Sonnet 4.6 leads 39.1 to 31.2.
  • Qwen3.8 Flash is cheaper at $0.15 / $0.47 per million input/output tokens, against $3 / $15 for Claude Sonnet 4.6.

Side by side

Claude Sonnet 4.6Qwen3.8 Flash
ProviderAnthropicAlibaba (Qwen)
Noometry Index50.135.1
Released2026-02-172026-08-26
WeightsProprietaryProprietary
Context window1M1M
Max output128K131K
Input $ / M tokens$3$0.15
Output $ / M tokens$15$0.47
Results tracked571

Sponsored placements are available on pages like this one. Advertise on Noometry

Category by category

Coding Not comparable

Claude Sonnet 4.6: 46.0 (#62), Qwen3.8 Flash: —

BenchmarkClaude Sonnet 4.6Qwen3.8 Flash
SWE-bench Verified75.2%—
DeepSWE29.9%—
FrontierCode24.3%—
LMArena WebDev1521—
SciCode46.8%—
WeirdML66.1%—
LMArena Coding1504—
ALE-Bench1,327—

Agentic & Tool Use Claude Sonnet 4.6 leads

Claude Sonnet 4.6: 39.1 (#26), Qwen3.8 Flash: 31.2

BenchmarkClaude Sonnet 4.6Qwen3.8 Flash
GDP.pdf18%16.6%
Terminal-Bench53.4%—
APEX-Agents43%—
OSWorld 2.09.3%—
DeepResearch Bench54.9%—
OSWorld72.1%—
ExploitBench23.6%—
GBAEval48.8%—
LMArena Search1221—
Vending-Bench 27,204—

Reasoning Not comparable

Claude Sonnet 4.6: 46.1 (#40), Qwen3.8 Flash: —

BenchmarkClaude Sonnet 4.6Qwen3.8 Flash
ARC-AGI-260.4%—
NYT Connections (extended)80.9%—
ARC-AGI-186.5%—
CritPt3.1%—
Chess Puzzles13%—
Thematic Generalization76.3%—
LMArena Hard Prompts1485—
Mystery Game Puzzles16%—
DTBench89.9%—
LMCA46.5%—
Epoch Capabilities Index152.25—
ForecastBench62—

Math Not comparable

Claude Sonnet 4.6: 51.9 (#41), Qwen3.8 Flash: —

BenchmarkClaude Sonnet 4.6Qwen3.8 Flash
OTIS Mock AIME 2024-202585.8%—
ProofBench45%—
LMArena Math1463—
FrontierMath (Feb 2025 set)32.4%—
FrontierMath Tier 4 (v1)8.3%—

Knowledge Not comparable

Claude Sonnet 4.6: 51.6 (#60), Qwen3.8 Flash: —

BenchmarkClaude Sonnet 4.6Qwen3.8 Flash
GPQA Diamond87.4%—
SimpleQA Verified35.5%—
Vectara Hallucination Rate10.6%—
LMArena Expert1500—

Multimodal Not comparable

Claude Sonnet 4.6: 38.0 (#61), Qwen3.8 Flash: —

BenchmarkClaude Sonnet 4.6Qwen3.8 Flash
LMArena Vision1283—
Blueprint-Bench 26.7%—
LMArena Document1482—

Multilingual Not comparable

Claude Sonnet 4.6: 54.6 (#39), Qwen3.8 Flash: —

BenchmarkClaude Sonnet 4.6Qwen3.8 Flash
LMArena Non-English1440—
LMArena Chinese1491—
LMArena French1465—
LMArena German1428—
LMArena Japanese1419—
LMArena Korean1411—
LMArena Russian1440—
LMArena Spanish1465—

Instruction Following Not comparable

Claude Sonnet 4.6: 77.6 (#23), Qwen3.8 Flash: —

BenchmarkClaude Sonnet 4.6Qwen3.8 Flash
LMArena Instruction Following1476—

Long Context Not comparable

Claude Sonnet 4.6: 45.3 (#40), Qwen3.8 Flash: —

BenchmarkClaude Sonnet 4.6Qwen3.8 Flash
LMArena Longer Query1479—

Writing & Preference Not comparable

Claude Sonnet 4.6: 70.4 (#22), Qwen3.8 Flash: —

BenchmarkClaude Sonnet 4.6Qwen3.8 Flash
LMArena Text1458—
LMArena Creative Writing1435—
EQ-Bench Creative Writing1810—
EQ-Bench 41207—
LMArena Multi-Turn1464—

Frequently asked questions

Is Claude Sonnet 4.6 better than Qwen3.8 Flash?

Claude Sonnet 4.6 has enough public results to be ranked (#42); Qwen3.8 Flash does not yet, so treat this comparison as directional.

Which is cheaper, Claude Sonnet 4.6 or Qwen3.8 Flash?

Qwen3.8 Flash is cheaper. It lists at $0.15 per million input tokens and $0.47 per million output tokens; Claude Sonnet 4.6 lists at $3 and $15.

Which has the bigger context window?

Both accept 1M tokens.

How many benchmarks do Claude Sonnet 4.6 and Qwen3.8 Flash share?

1 benchmark has published results for both models. Claude Sonnet 4.6 has 57 scored results on Noometry and Qwen3.8 Flash has 1.

Related comparisons

Go deeper