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Anthropic: Claude Opus 4.8 vs Qwen: Qwen3.5-27B

Last updated at: 2026-06-02

Metric Claude Opus 4.8 Claude Opus 4.8 none Release: 2026-05-28 Qwen3.5-27B Qwen3.5-27B medium Release: 2026-02-24
Score 7.3 7.9
Rank #66 #27
Reliability 10.0 10.0
Consistency 9.2 8.9
Tests Correct
Attempt pass rate 65.0% 73.3%
Flaky tests 2 3
Total Runs 60 60
Cost per result 4.324 4.532
Total Cost $0.519 $0.488
Input Price $5.000 / 1M $0.195 / 1M
Output Price $25.000 / 1M $1.560 / 1M
Total Input Tokens 63,282 39,329
Output Tokens 8,098 2,569
Reasoning Tokens 0 304,894
Response Time (avg) 3.51s 60.09s
Response Time (max) 17.73s 177.36s
Response Time (total) 70.19s 1201.89s

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Category Breakdown

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Claude Opus 4.8 6.5 10.0 50.0% 0 3.40s 834 1,472 0
Qwen3.5-27B 8.7 7.9 91.7% 1 19.75s 672 569 31,505
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Claude Opus 4.8 6.8 10.0 50.0% 0 3.59s 6,768 1,323 0
Qwen3.5-27B 7.0 9.8 50.0% 0 123.86s 5,060 416 64,993
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Claude Opus 4.8 9.5 10.0 100.0% 0 17.73s 29,658 3,259 0
Qwen3.5-27B 10.0 10.0 100.0% 0 163.96s 14,946 483 9,991
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Claude Opus 4.8 7.3 5.8 83.3% 1 1.77s 10,503 308 0
Qwen3.5-27B 10.0 10.0 100.0% 0 30.26s 7,782 270 16,150
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Claude Opus 4.8 5.3 7.2 44.4% 1 1.66s 975 61 0
Qwen3.5-27B 5.3 10.0 33.3% 0 79.53s 553 43 52,368
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Claude Opus 4.8 10.0 10.0 100.0% 0 3.48s 708 230 0
Qwen3.5-27B 6.1 3.1 66.7% 1 101.41s 524 70 23,147
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Claude Opus 4.8 9.9 10.0 100.0% 0 1.37s 909 95 0
Qwen3.5-27B 10.0 10.0 100.0% 0 19.66s 699 97 11,638
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Claude Opus 4.8 7.7 10.0 66.7% 0 2.74s 894 783 0
Qwen3.5-27B 8.2 7.7 77.8% 1 59.60s 696 242 70,096
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Claude Opus 4.8 10.0 10.0 100.0% 0 5.35s 11,775 355 0
Qwen3.5-27B 10.0 10.0 100.0% 0 7.45s 8,193 348 1,323
Trivia Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Claude Opus 4.8 3.0 10.0 0.0% 0 3.41s 258 212 0
Qwen3.5-27B 3.0 10.0 0.0% 0 85.11s 204 31 23,683

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