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Kwaipilot: KAT-Coder-Air V2.5 vs OpenAI: GPT-5.5

Summary

The average score is effectively tied at 6.2 vs 6.3. KAT-Coder-Air V2.5 (high) has the lower benchmark cost at $0.064 vs $0.231. GPT-5.5 is faster at 1.89s vs 11.02s, with pass rates of 46.0% vs 54.0%.

Recommended modelGPT-5.5It has the best score here (6.3), while responding about 5.8x faster than KAT-Coder-Air V2.5 (high).

Last updated at: 2026-07-14

Metric KAT-Coder-Air V2.5 KAT-Coder-Air V2.5 high Release: 2026-07-14 GPT-5.5 GPT-5.5 none Release: 2026-04-24
Score 6.2 6.3
Rank #110 #109
Reliability 9.7 10.0
Consistency 7.6 8.8
Tests Correct
Attempt pass rate 46.0% 54.0%
Flaky tests 6 3
Total Runs 63 63
Cost per result 0.910 2.302
Total Cost $0.064 $0.231
Input Price $0.150 / 1M $5.000 / 1M
Output Price $0.600 / 1M $30.000 / 1M
Total Input Tokens 41,748 34,212
Output Tokens 3,894 1,971
Reasoning Tokens 91,773 0
Response Time (avg) 11.02s 1.89s
Response Time (max) 104.98s 5.56s
Response Time (total) 231.37s 39.64s

Generation showcase

Hamster playing table tennis

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

#110 KAT-Coder-Air V2.5

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

#109 GPT-5.5

none
Cost
$0.090
Time
54.3s
Tokens
3,063 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
GPT-5.5 5.5 10.0 33.3% 0 1.35s 7,305 462 0

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