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Anthropic: Claude Sonnet 4.6 vs Qwen: Qwen3.5-27B

Summary

Claude Sonnet 4.6 vs Qwen3.5-27B benchmark comparison: Qwen3.5-27B leads on average score with 7.9 vs 7.8. Qwen3.5-27B has the lower benchmark cost at $0.536 vs $1.418. Claude Sonnet 4.6 is faster at 17.06s vs 68.39s, with pass rates of 65.1% vs 73.0%.

Recommended model: Qwen3.5-27B - It has the best score here (7.9), while costing about 2.6x less than Claude Sonnet 4.6.

Last updated at: 2026-06-18

Metric Claude Sonnet 4.6 Claude Sonnet 4.6 medium Release: 2026-02-17 Qwen3.5-27B Qwen3.5-27B medium Release: 2026-02-24
Score 7.8 7.9
Rank #31 #29
Reliability 10.0 10.0
Consistency 9.1 8.5
Tests Correct
Attempt pass rate 65.1% 73.0%
Flaky tests 2 4
Total Runs 63 63
Cost per result 10.904 4.901
Total Cost $1.418 $0.536
Input Price $3.000 / 1M $0.195 / 1M
Output Price $15.000 / 1M $1.560 / 1M
Total Input Tokens 49,112 42,164
Output Tokens 54,703 8,534
Reasoning Tokens 29,970 329,289
Response Time (avg) 17.06s 68.39s
Response Time (max) 46.35s 234.36s
Response Time (total) 221.83s 1436.24s

Generation showcase

Hamster playing table tennis

Prompt: Create a detailed SVG illustration of a hamster playing table tennis.

#31 Claude Sonnet 4.6

medium
Invalid SVG
Cost
$0.000
Time
300.0s
Tokens
0 tok

#29 Qwen3.5-27B

medium
Cost
$0.008
Time
62.0s
Tokens
3,099 tok

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) Input Tokens Output Tokens Reasoning Tokens
Claude Sonnet 4.6 6.5 10.0 50.0% 0 2.98s 789 1,046 1,093
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 Sonnet 4.6 5.7 6.6 44.4% 1 33.29s 6,995 16,089 3,686
Qwen3.5-27B 6.2 7.1 55.6% 1 160.69s 7,895 6,381 89,388
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Claude Sonnet 4.6 10.0 10.0 100.0% 0 46.35s 18,351 5,871 3,962
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 Sonnet 4.6 10.0 10.0 100.0% 0 13.90s 8,676 649 742
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 Sonnet 4.6 2.9 7.2 11.1% 1 0ms 471 25,790 16,919
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 Sonnet 4.6 10.0 10.0 100.0% 0 4.94s 564 256 433
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 Sonnet 4.6 10.0 10.0 100.0% 0 2.61s 792 318 552
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 Sonnet 4.6 10.0 10.0 100.0% 0 5.31s 816 592 646
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 Sonnet 4.6 10.0 10.0 100.0% 0 7.48s 11,454 655 351
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 Sonnet 4.6 3.0 10.0 0.0% 0 30.09s 204 3,437 1,586
Qwen3.5-27B 3.0 10.0 0.0% 0 85.11s 204 31 23,683

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