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DeepSeek: DeepSeek V4 Flash vs Kwaipilot: KAT-Coder-Air V2.5

Summary

DeepSeek V4 Flash leads on average score with 5.5 vs 4.9. DeepSeek V4 Flash has the lower benchmark cost at $0.007 vs $0.037. KAT-Coder-Air V2.5 is faster at 6.99s vs 26.75s, with pass rates of 30.2% vs 38.1%.

Recommended modelDeepSeek V4 FlashIt has the best score here (5.5), while costing about 5.2x less than KAT-Coder-Air V2.5.

Last updated at: 2026-07-14

Metric DeepSeek V4 Flash DeepSeek V4 Flash none Release: 2026-04-24 KAT-Coder-Air V2.5 KAT-Coder-Air V2.5 none Release: 2026-07-14
Score 5.5 4.9
Rank #142 #168
Reliability 10.0 10.0
Consistency 8.9 7.1
Tests Correct
Attempt pass rate 30.2% 38.1%
Flaky tests 3 7
Total Runs 63 63
Cost per result 0.203 0.724
Total Cost $0.007 $0.037
Input Price $0.090 / 1M $0.150 / 1M
Output Price $0.180 / 1M $0.600 / 1M
Total Input Tokens 50,127 41,328
Output Tokens 13,710 49,933
Reasoning Tokens 0 0
Response Time (avg) 26.75s 6.99s
Response Time (max) 111.96s 24.94s
Response Time (total) 561.82s 146.78s

Generation showcase

Hamster playing table tennis

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

#142 DeepSeek V4 Flash

none
Cost
$0.004
Time
157.6s
Tokens
11,297 tok

#168 KAT-Coder-Air V2.5

none
Cost
$0.002
Time
14.5s
Tokens
2,619 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 4.2 7.4 11.1% 1 17.13s 7,279 9,717 0
KAT-Coder-Air V2.5 3.3 9.6 0.0% 0 14.31s 6,472 16,918 0

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