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Kwaipilot: KAT-Coder-Air V2.5 vs Mistral: Mistral Small 4

KAT-Coder-Air V2.5 (high) leads on average score with 5.6 vs 5.1. Mistral Small 4 has the lower benchmark cost at $0.022 vs $0.077. Mistral Small 4 is faster at 1.20s vs 15.90s, with pass rates of 43.9% vs 25.8%.

Recommended modelMistral Small 4Its score stays close to the best score here (5.1 vs 5.6), while costing about 3.6x less than KAT-Coder-Air V2.5 (high).

Last updated at: 2026-07-20

Metric KAT-Coder-Air V2.5 KAT-Coder-Air V2.5 high Release: 2026-07-14 Mistral Small 4 Mistral Small 4 none Release: 2026-03-16
Score 5.6 5.1
Rank #144 #165
Reliability 9.9 10.0
Consistency 7.7 9.6
Tests Correct
Attempt pass rate 43.9% 25.8%
Flaky tests 6 1
Total Runs 66 66
Cost per result 1.097 0.432
Total Cost $0.077 $0.022
Input Price $0.150 / 1M $0.150 / 1M
Output Price $0.600 / 1M $0.600 / 1M
Total Input Tokens 50,470 104,708
Output Tokens 3,957 9,812
Reasoning Tokens 111,374 0
Response Time (avg) 15.90s 1.20s
Response Time (max) 118.35s 13.16s
Response Time (total) 349.71s 26.38s

Hamster playing table tennis

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

#144 KAT-Coder-Air V2.5

high
Invalid SVG
Cost
$0.000
Time
300.0s
Tokens
0 tok

#165 Mistral Small 4

none
Cost
$0.002
Time
10.4s
Tokens
2,370 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
KAT-Coder-Air V2.5 4.3 7.3 11.1% 1 39.07s 6,948 1,166 55,883
Mistral Small 4 3.7 9.7 0.0% 0 901ms 7,636 619 0

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