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Anthropic: Claude Sonnet 4.6 vs Qwen3.6 Plus Preview

Last updated at: 2026-04-04

Metric Claude Sonnet 4.6 Claude Sonnet 4.6 medium Release: 2026-02-17 Qwen3.6 Plus Preview Qwen3.6 Plus Preview medium Release: 2026-03-30
Score 7.9 8.5
Rank #25 #7
Consistency 9.5 10.0
Tests Correct
Attempt pass rate 72.6% 76.5%
Flaky tests 1 0
Total Runs 51 49
Cost per result 8.531 0.000
Total Cost $1.024 $0.000
Input Price $3.000 / 1M $0.000 / 1M
Output Price $15.000 / 1M $0.000 / 1M
Output Tokens 35,174 1,756
Reasoning Tokens 24,687 77,213
Response Time (avg) 10.09s 13.94s
Response Time (max) 46.35s 43.55s
Response Time (total) 90.85s 237.01s

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Category Breakdown

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Sonnet 4.6 6.5 10.0 50.0% 0 2.98s 1,046 1,093
Qwen3.6 Plus Preview 10.0 10.0 100.0% 0 9.90s 207 7,557
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Sonnet 4.6 10.0 10.0 100.0% 0 46.35s 5,871 3,962
Qwen3.6 Plus Preview 10.0 10.0 100.0% 0 34.95s 452 13,073
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Sonnet 4.6 10.0 10.0 100.0% 0 13.90s 649 742
Qwen3.6 Plus Preview 10.0 10.0 100.0% 0 14.95s 270 10,706
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Sonnet 4.6 2.9 7.2 11.1% 1 0ms 25,790 16,919
Qwen3.6 Plus Preview 3.0 10.0 0.0% 0 22.08s 49 26,895
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Sonnet 4.6 10.0 10.0 100.0% 0 4.94s 256 433
Qwen3.6 Plus Preview 5.1 10.0 0.0% 0 27.05s 111 5,232
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Sonnet 4.6 10.0 10.0 100.0% 0 2.61s 318 552
Qwen3.6 Plus Preview 10.0 10.0 100.0% 0 7.54s 102 5,552
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Sonnet 4.6 10.0 10.0 100.0% 0 4.80s 589 635
Qwen3.6 Plus Preview 10.0 10.0 100.0% 0 6.11s 298 6,868
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Sonnet 4.6 10.0 10.0 100.0% 0 7.48s 655 351
Qwen3.6 Plus Preview 10.0 10.0 100.0% 0 5.87s 267 1,330

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