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

Summary

KAT-Coder-Pro V2.5 (medium) leads on average score with 6.9 vs 6.9. KAT-Coder-Pro V2.5 (medium) has the lower benchmark cost at $0.467 vs $0.544. GPT-5.5 is faster at 2.36s vs 24.04s, with pass rates of 63.6% vs 56.1%.

Recommended modelGPT-5.5Its score stays close to the best score here (6.9 vs 6.9), while responding about 10.2x faster than KAT-Coder-Pro V2.5 (medium).

Last updated at: 2026-07-17

Metric KAT-Coder-Pro V2.5 KAT-Coder-Pro V2.5 medium Release: 2026-07-14 GPT-5.5 GPT-5.5 none Release: 2026-04-24
Score 6.9 6.9
Rank #78 #84
Reliability 10.0 10.0
Consistency 7.4 8.9
Tests Correct
Attempt pass rate 63.6% 56.1%
Flaky tests 7 3
Total Runs 66 66
Cost per result 4.237 4.945
Total Cost $0.467 $0.544
Input Price $0.740 / 1M $5.000 / 1M
Output Price $2.960 / 1M $30.000 / 1M
Total Input Tokens 87,907 79,285
Output Tokens 7,213 4,915
Reasoning Tokens 128,251 0
Response Time (avg) 24.04s 2.36s
Response Time (max) 257.00s 12.24s
Response Time (total) 528.92s 51.88s

Generation showcase

Hamster playing table tennis

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

#78 KAT-Coder-Pro V2.5

medium
Cost
$0.009
Time
25.6s
Tokens
2,939 tok

#84 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-Pro V2.5 7.8 10.0 66.7% 0 33.10s 7,893 416 33,658
GPT-5.5 5.5 10.0 33.3% 0 1.35s 7,305 462 0

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