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DeepSeek V4 Flash 0731 (medium) vs Qwen3.5 Plus 2026-04-20 (medium)

DeepSeek V4 Flash 0731 (medium) leads on average score with 7.3 vs 7.2. DeepSeek V4 Flash 0731 (medium) has the lower benchmark cost at $0.066 vs $0.323. Qwen3.5 Plus 2026-04-20 (medium) is faster at 46.97s vs 84.66s, with pass rates of 71.2% vs 63.6%.

Last updated at: 2026-09-08

Compared models

Rank
#122
Total Output Tokens
550,855
Response Time (avg)
84.66s
Total Cost
$0.066
Rank
#127
Total Output Tokens
172,123
Response Time (avg)
46.97s
Total Cost
$0.323
Recommended model DeepSeek V4 Flash 0731 (medium)

It has the best score here (7.3), while costing about 4.9x less than Qwen3.5 Plus 2026-04-20 (medium).

Detailed comparison

Metric DeepSeek V4 Flash 0731 DeepSeek V4 Flash 0731 medium Release: 2026-08-01 Qwen3.5 Plus 2026-04-20 Qwen3.5 Plus 2026-04-20 medium Release: 2026-04-20
Score 7.3 7.2
Rank #122 #127
Reliability 10.0 9.6
Consistency 7.1 9.0
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 71.2% 63.6%
Flaky tests 8 2
Total Runs 66 66
Cost per result 0.960 3.048
Total Cost $0.066 $0.323
Input Price $0.065 / 1M $0.300 / 1M
Output Price $0.180 / 1M $1.800 / 1M
Total Input Tokens 89,819 42,106
Output Tokens 58,398 2,280
Reasoning Tokens 492,457 169,843
Response Time (avg) 84.66s 46.97s
Response Time (max) 288.78s 189.38s
Response Time (total) 1862.46s 986.35s
Parameters 284B total (13B 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.

#122 DeepSeek V4 Flash 0731

medium
Cost
$0.004
Time
93.3s
Tokens
13,252 tok

#127 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

Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
DeepSeek V4 Flash 0731 6.4 4.4 77.8% 2 198.78s 6,032 4,109 160,154
Qwen3.5 Plus 2026-04-20 6.2 8.7 33.3% 0 125.25s 7,630 308 58,682

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