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

Summary

GPT-5.5 (low) leads on average score with 9.3 vs 7.7. KAT-Coder-Pro V2.5 (high) has the lower benchmark cost at $0.246 vs $0.907. GPT-5.5 (low) is faster at 9.76s vs 12.30s, with pass rates of 63.5% 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-Pro V2.5 KAT-Coder-Pro V2.5 high Release: 2026-07-14 GPT-5.5 GPT-5.5 low Release: 2026-04-24
Score 7.7 9.3
Rank #53 #7
Reliability 10.0 10.0
Consistency 8.1 10.0
Tests Correct
Attempt pass rate 63.5% 85.7%
Flaky tests 5 0
Total Runs 63 63
Cost per result 2.228 5.035
Total Cost $0.246 $0.907
Input Price $0.740 / 1M $5.000 / 1M
Output Price $2.960 / 1M $30.000 / 1M
Total Input Tokens 42,750 34,209
Output Tokens 2,509 2,046
Reasoning Tokens 69,594 22,460
Response Time (avg) 12.30s 9.76s
Response Time (max) 95.65s 56.19s
Response Time (total) 258.34s 204.92s

Generation showcase

Hamster playing table tennis

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

#53 KAT-Coder-Pro V2.5

high
Cost
$0.009
Time
26.4s
Tokens
3,117 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-Pro V2.5 6.4 7.9 44.4% 1 22.00s 7,893 422 20,461
GPT-5.5 10.0 10.0 100.0% 0 15.04s 7,302 423 6,402

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