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Qwen: Qwen3.5-27B vs Qwen3.6 Plus Preview

Last updated at: 2026-04-11

Metric Qwen3.5-27B Qwen3.5-27B none Release: 2026-02-24 Qwen3.6 Plus Preview Qwen3.6 Plus Preview medium Release: 2026-03-30 Free Available
Score 5.9 8.5
Rank #64 #7
Consistency 9.2 10.0
Tests Correct
Attempt pass rate 38.9% 76.5%
Flaky tests 2 0
Total Runs 54 49
Cost per result 0.265 0.000
Total Cost $0.016 $0.000
Input Price $0.195 / 1M $0.000 / 1M
Output Price $1.560 / 1M $0.000 / 1M
Output Tokens 3,545 1,756
Reasoning Tokens 0 77,213
Response Time (avg) 1.74s 13.94s
Response Time (max) 9.39s 43.55s
Response Time (total) 31.32s 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
Qwen3.5-27B 4.8 10.0 25.0% 0 788ms 267 0
Qwen3.6 Plus Preview 10.0 10.0 100.0% 0 9.90s 207 7,557
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Qwen3.5-27B 10.0 10.0 100.0% 0 2.51s 381 0
Qwen3.6 Plus Preview - - - - - - - -
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Qwen3.5-27B 2.8 1.6 33.3% 1 9.39s 1,461 0
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
Qwen3.5-27B 10.0 10.0 100.0% 0 1.43s 243 0
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
Qwen3.5-27B 3.0 10.0 0.0% 0 540ms 15 0
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
Qwen3.5-27B 5.0 10.0 0.0% 0 2.51s 126 0
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
Qwen3.5-27B 4.8 10.0 0.0% 0 815ms 69 0
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
Qwen3.5-27B 6.7 7.9 55.6% 1 1.37s 680 0
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
Qwen3.5-27B 10.0 10.0 100.0% 0 3.54s 303 0
Qwen3.6 Plus Preview 10.0 10.0 100.0% 0 5.87s 267 1,330

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