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

Summary

GPT-5.5 (low) leads on average score with 9.3 vs 6.2. KAT-Coder-Air V2.5 (high) has the lower benchmark cost at $0.064 vs $0.907. GPT-5.5 (low) is faster at 9.76s vs 11.02s, with pass rates of 46.0% vs 85.7%.

Recommended modelGPT-5.5 (low)It has the strongest score in this comparison (9.3) and the best overall balance of cost and response time across all 2 models.

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 low Release: 2026-04-24
Score 6.2 9.3
Rank #110 #7
Reliability 9.7 10.0
Consistency 7.6 10.0
Tests Correct
Attempt pass rate 46.0% 85.7%
Flaky tests 6 0
Total Runs 63 63
Cost per result 0.910 5.035
Total Cost $0.064 $0.907
Input Price $0.150 / 1M $5.000 / 1M
Output Price $0.600 / 1M $30.000 / 1M
Total Input Tokens 41,748 34,209
Output Tokens 3,894 2,046
Reasoning Tokens 91,773 22,460
Response Time (avg) 11.02s 9.76s
Response Time (max) 104.98s 56.19s
Response Time (total) 231.37s 204.92s

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

#7 GPT-5.5

low
Cost
$0.068
Time
37.0s
Tokens
2,339 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 10.0 10.0 100.0% 0 15.04s 7,302 423 6,402

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