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Anthropic: Claude Sonnet 4.6 vs Qwen: Qwen3.5 Plus 2026-02-15

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Last updated at : 2026-02-27 15:16

Summary

Metric Anthropic: Claude Sonnet 4.6 none Release: Unknown release date Qwen: Qwen3.5 Plus 2026-02-15 medium Release: Unknown release date
Rank #14 #4
Score 6.36 8.64
Consistency 9.50 10.00
Cost per result 1.325 1.955
Total Cost $0.106 $0.235
Tests Correct
Wrong Tests 6 2
Attempt pass rate 59.5% 85.7%
Flaky tests 1 0
Output Tokens 2,637 1,258
Reasoning Tokens 0 93,374

Category Breakdown

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
Anthropic: Claude Sonnet 4.6 4.00 10.00 33.3% 0 1,199 0
Qwen: Qwen3.5 Plus 2026-02-15 10.00 10.00 100.0% 0 186 5,926
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
Anthropic: Claude Sonnet 4.6 10.00 10.00 100.0% 0 252 0
Qwen: Qwen3.5 Plus 2026-02-15 10.00 10.00 100.0% 0 283 14,892
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
Anthropic: Claude Sonnet 4.6 7.00 10.00 66.7% 0 54 0
Qwen: Qwen3.5 Plus 2026-02-15 4.00 10.00 33.3% 0 56 39,882
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
Anthropic: Claude Sonnet 4.6 5.50 10.00 50.0% 0 90 0
Qwen: Qwen3.5 Plus 2026-02-15 9.50 9.99 100.0% 0 102 9,257
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
Anthropic: Claude Sonnet 4.6 5.00 7.68 44.4% 1 595 0
Qwen: Qwen3.5 Plus 2026-02-15 10.00 10.00 100.0% 0 322 22,508
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
Anthropic: Claude Sonnet 4.6 10.00 10.00 100.0% 0 447 0
Qwen: Qwen3.5 Plus 2026-02-15 10.00 10.00 100.0% 0 309 909

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