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

Last updated at: 2026-05-01

Metric Claude Opus 4.6 Claude Opus 4.6 medium Release: 2026-02-05 Qwen3.5 Plus 2026-02-15 Qwen3.5 Plus 2026-02-15 none Release: 2026-02-15
Score 7.6 6.8
Rank #50 #65
Reliability N/A N/A
Consistency 9.1 9.3
Tests Correct
Attempt pass rate 70.4% 53.7%
Flaky tests 2 2
Total Runs 54 54
Cost per result 12.047 0.182
Total Cost $1.446 $0.017
Input Price $5.000 / 1M $0.260 / 1M
Output Price $25.000 / 1M $1.560 / 1M
Output Tokens 29,829 2,461
Reasoning Tokens 18,938 0
Response Time (avg) 21.08s 2.60s
Response Time (max) 83.40s 6.65s
Response Time (total) 231.84s 31.23s

Top Models by Score

Score vs Total Cost

Response Time (avg)

Score vs Response Time (avg)

Total Output Tokens

Score vs Total Output Tokens

Category Breakdown

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Opus 4.6 6.4 5.8 66.7% 2 7.45s 986 1,071
Qwen3.5 Plus 2026-02-15 4.8 10.0 25.0% 0 1.91s 517 0
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Opus 4.6 10.0 10.0 100.0% 0 23.11s 3,486 1,504
Qwen3.5 Plus 2026-02-15 6.3 3.7 33.3% 1 3.63s 443 0
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Opus 4.6 10.0 10.0 100.0% 0 76.66s 8,178 5,194
Qwen3.5 Plus 2026-02-15 3.0 10.0 0.0% 0 6.65s 314 0
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Opus 4.6 10.0 10.0 100.0% 0 7.37s 691 757
Qwen3.5 Plus 2026-02-15 10.0 10.0 100.0% 0 1.89s 243 0
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Opus 4.6 3.0 10.0 0.0% 0 83.40s 14,642 8,687
Qwen3.5 Plus 2026-02-15 5.3 10.0 33.3% 0 1.17s 17 0
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Opus 4.6 10.0 10.0 100.0% 0 5.04s 188 292
Qwen3.5 Plus 2026-02-15 4.4 3.0 33.3% 1 2.26s 117 0
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Opus 4.6 10.0 10.0 100.0% 0 2.43s 266 467
Qwen3.5 Plus 2026-02-15 10.0 10.0 100.0% 0 1.67s 72 0
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Opus 4.6 7.7 10.0 66.7% 0 4.60s 531 637
Qwen3.5 Plus 2026-02-15 7.7 10.0 66.7% 0 2.82s 516 0
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Opus 4.6 10.0 10.0 100.0% 0 9.73s 861 329
Qwen3.5 Plus 2026-02-15 10.0 10.0 100.0% 0 3.33s 222 0

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