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Qwen3.5-Flash (medium) vs Qwen3.5 Plus 2026-04-20

The average score is effectively tied at 6.1 vs 6.1. Qwen3.5 Plus 2026-04-20 has the lower benchmark cost at $0.122 vs $0.142. Qwen3.5 Plus 2026-04-20 is faster at 13.10s vs 84.44s, with pass rates of 65.2% vs 43.9%.

Last updated at: 2026-08-26

Rank
#176
Total Output Tokens
512,846
Response Time (avg)
84.44s
Total Cost
$0.142
Rank
#181
Total Output Tokens
51,487
Response Time (avg)
13.10s
Total Cost
$0.122
Recommended model Qwen3.5 Plus 2026-04-20

It has the best score here (6.1), while responding about 6.4x faster than Qwen3.5-Flash (medium).

Detailed comparison

Metric Qwen3.5-Flash Qwen3.5-Flash medium Release: 2026-02-24 Qwen3.5 Plus 2026-04-20 Qwen3.5 Plus 2026-04-20 none Release: 2026-04-20
Score 6.1 6.1
Rank #176 #181
Reliability 10.0 10.0
Consistency 7.8 8.7
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 65.2% 43.9%
Flaky tests 6 4
Total Runs 66 66
Cost per result 1.491 1.636
Total Cost $0.142 $0.122
Input Price $0.065 / 1M $0.300 / 1M
Output Price $0.260 / 1M $1.800 / 1M
Total Input Tokens 118,508 94,477
Output Tokens 35,457 51,487
Reasoning Tokens 477,389 0
Response Time (avg) 84.44s 13.10s
Response Time (max) 515.38s 206.05s
Response Time (total) 1773.20s 288.23s
Parameters ~35B total (~3B 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.

#176 Qwen3.5-Flash

medium
Cost
$0.002
Time
25.8s
Tokens
4,294 tok

#181 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
Qwen3.5-Flash 3.7 7.2 22.2% 1 58.87s 6,685 302 90,081
Qwen3.5 Plus 2026-04-20 3.9 7.8 11.1% 1 1.69s 7,913 480 0

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