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Google: Gemini 2.5 Flash vs Qwen: Qwen3.5 Plus 2026-04-20

Last updated at: 2026-05-22

Metric Gemini 2.5 Flash Gemini 2.5 Flash medium Release: 2025-06-17 Qwen3.5 Plus 2026-04-20 Qwen3.5 Plus 2026-04-20 medium Release: 2026-04-20
Score 7.7 7.6
Rank #36 #42
Reliability 10.0 9.6
Consistency 9.6 8.7
Tests Correct
Attempt pass rate 68.3% 71.7%
Flaky tests 1 3
Total Runs 60 60
Cost per result 2.750 2.789
Total Cost $0.358 $0.363
Input Price $0.300 / 1M $0.300 / 1M
Output Price $2.500 / 1M $1.800 / 1M
Output Tokens 1,924 2,245
Reasoning Tokens 137,255 150,235
Response Time (avg) 15.69s 43.63s
Response Time (max) 95.48s 189.38s
Response Time (total) 313.76s 872.61s

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Score vs Total Cost

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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
Gemini 2.5 Flash 8.4 10.0 75.0% 0 6.30s 255 10,233
Qwen3.5 Plus 2026-04-20 10.0 10.0 100.0% 0 10.84s 215 7,748
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 2.5 Flash 6.6 10.0 50.0% 0 54.56s 537 24,413
Qwen3.5 Plus 2026-04-20 5.4 6.0 66.7% 1 137.55s 287 42,318
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 2.5 Flash 10.0 10.0 100.0% 0 28.44s 303 11,922
Qwen3.5 Plus 2026-04-20 10.0 10.0 100.0% 0 92.41s 483 17,490
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 2.5 Flash 10.0 10.0 100.0% 0 4.06s 279 2,325
Qwen3.5 Plus 2026-04-20 10.0 10.0 100.0% 0 38.32s 270 14,668
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 2.5 Flash 5.9 7.2 55.6% 1 37.34s 18 80,702
Qwen3.5 Plus 2026-04-20 2.9 7.2 11.1% 1 53.10s 63 28,414
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 2.5 Flash 4.8 10.0 0.0% 0 4.86s 92 1,899
Qwen3.5 Plus 2026-04-20 4.9 9.6 0.0% 0 25.30s 125 4,792
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 2.5 Flash 9.8 10.0 100.0% 0 2.62s 69 1,203
Qwen3.5 Plus 2026-04-20 10.0 10.0 100.0% 0 20.25s 103 7,689
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 2.5 Flash 7.7 10.0 66.7% 0 3.94s 126 2,499
Qwen3.5 Plus 2026-04-20 8.2 7.2 88.9% 1 17.58s 324 9,786
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 2.5 Flash 10.0 10.0 100.0% 0 6.20s 234 1,140
Qwen3.5 Plus 2026-04-20 10.0 10.0 100.0% 0 14.72s 348 2,164
Trivia Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 2.5 Flash 3.0 10.0 0.0% 0 2.76s 11 919
Qwen3.5 Plus 2026-04-20 3.0 10.0 0.0% 0 92.57s 27 15,166

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