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Google: Gemini 3 Flash Preview vs Qwen: Qwen3.5 Plus 2026-04-20

Summary

Gemini 3 Flash Preview vs Qwen3.5 Plus 2026-04-20 benchmark comparison: Gemini 3 Flash Preview leads on average score with 9.8 vs 7.6. Qwen3.5 Plus 2026-04-20 has the lower benchmark cost at $0.317 vs $0.667. Gemini 3 Flash Preview is faster at 18.64s vs 46.36s, with pass rates of 98.4% vs 66.7%.

Recommended model: Gemini 3 Flash Preview - It has the best score here (9.8), while responding about 2.5x faster than Qwen3.5 Plus 2026-04-20.

Last updated at: 2026-06-10

Metric Gemini 3 Flash Preview Gemini 3 Flash Preview medium Release: 2025-12-17 Qwen3.5 Plus 2026-04-20 Qwen3.5 Plus 2026-04-20 medium Release: 2026-04-20
Score 9.8 7.6
Rank #1 #37
Reliability 10.0 10.0
Consistency 9.7 9.0
Tests Correct
Attempt pass rate 98.4% 66.7%
Flaky tests 1 2
Total Runs 63 63
Cost per result 3.335 3.023
Total Cost $0.667 $0.317
Input Price $0.500 / 1M $0.300 / 1M
Output Price $3.000 / 1M $1.800 / 1M
Total Input Tokens 37,017 42,097
Output Tokens 2,006 2,280
Reasoning Tokens 214,153 166,613
Response Time (avg) 18.64s 46.36s
Response Time (max) 117.26s 189.38s
Response Time (total) 391.35s 973.57s

Generation showcase

Hamster playing table tennis

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

#1 Gemini 3 Flash Preview

medium
Cost
$0.010
Time
17.9s
Tokens
3,236 tok

#37 Qwen3.5 Plus 2026-04-20

medium
Cost
$0.008
Time
76.7s
Tokens
4,355 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
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 3.88s 494 330 3,216
Qwen3.5 Plus 2026-04-20 10.0 10.0 100.0% 0 10.84s 672 215 7,748
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3 Flash Preview 8.6 7.6 88.9% 1 84.40s 8,122 462 161,084
Qwen3.5 Plus 2026-04-20 6.2 8.7 33.3% 0 125.25s 7,630 308 58,682
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 22.42s 12,873 351 10,485
Qwen3.5 Plus 2026-04-20 10.0 10.0 100.0% 0 92.41s 14,934 483 17,490
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 5.43s 7,548 279 4,893
Qwen3.5 Plus 2026-04-20 10.0 10.0 100.0% 0 38.32s 7,782 270 14,668
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 15.27s 633 12 21,684
Qwen3.5 Plus 2026-04-20 2.9 7.2 11.1% 1 53.10s 771 63 28,414
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 5.19s 486 72 1,905
Qwen3.5 Plus 2026-04-20 4.9 9.6 0.0% 0 25.30s 516 125 4,792
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 4.04s 615 72 2,709
Qwen3.5 Plus 2026-04-20 10.0 10.0 100.0% 0 20.25s 699 103 7,689
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 4.05s 558 183 4,365
Qwen3.5 Plus 2026-04-20 8.2 7.2 88.9% 1 17.67s 696 338 9,800
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 12.60s 5,532 234 1,487
Qwen3.5 Plus 2026-04-20 10.0 10.0 100.0% 0 14.72s 8,193 348 2,164
Trivia Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 5.50s 156 11 2,325
Qwen3.5 Plus 2026-04-20 3.0 10.0 0.0% 0 92.57s 204 27 15,166

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