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

Qwen3.5 Plus 2026-04-20 leads on average score with 6.1 vs 6.0. Gemini 2.5 Flash has the lower benchmark cost at $0.017 vs $0.122. Gemini 2.5 Flash is faster at 6.19s vs 13.10s, with pass rates of 39.4% vs 43.9%.

Last updated at: 2026-09-08

Compared models

Rank
#205
Total Output Tokens
1,890
Response Time (avg)
6.19s
Total Cost
$0.017
Rank
#202
Total Output Tokens
51,487
Response Time (avg)
13.10s
Total Cost
$0.122
Recommended model Gemini 2.5 Flash

Its score stays close to the best score here (6.0 vs 6.1), while costing about 7.3x less than Qwen3.5 Plus 2026-04-20.

Detailed comparison

Metric Gemini 2.5 Flash Gemini 2.5 Flash none Release: 2025-06-17 Qwen3.5 Plus 2026-04-20 Qwen3.5 Plus 2026-04-20 none Release: 2026-04-20
Score 6.0 6.1
Rank #205 #202
Reliability 10.0 10.0
Consistency 9.6 8.7
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 39.4% 43.9%
Flaky tests 1 4
Total Runs 66 66
Cost per result 0.209 1.636
Total Cost $0.017 $0.122
Input Price $0.300 / 1M $0.300 / 1M
Output Price $2.500 / 1M $1.800 / 1M
Total Input Tokens 39,886 94,477
Output Tokens 1,890 51,487
Reasoning Tokens 0 0
Response Time (avg) 6.19s 13.10s
Response Time (max) 118.00s 206.05s
Response Time (total) 136.23s 288.23s
Parameters ~350B total (~20B active) ~397B total (~17B active)
Availability Closed Closed

Model generation showcase

Hamster playing table tennis

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

#205 Gemini 2.5 Flash

none
Invalid SVG
Cost
$0.164
Time
215.5s
Tokens
65,659 tok

#202 Qwen3.5 Plus 2026-04-20

none
Cost
$0.008
Time
77.0s
Tokens
4,369 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

Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 2.5 Flash 5.5 10.0 33.3% 0 736ms 8,122 483 0
Qwen3.5 Plus 2026-04-20 3.9 7.8 11.1% 1 1.69s 7,913 480 0

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