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KAT-Coder-Pro V2.5 (medium) vs GPT-5.5

GPT-5.5 leads on average score with 7.0 vs 6.9. KAT-Coder-Pro V2.5 (medium) has the lower benchmark cost at $0.478 vs $0.544. GPT-5.5 is faster at 2.35s vs 24.87s, with pass rates of 65.2% vs 59.1%.

Last updated at: 2026-08-29

Rank
#126
Total Output Tokens
139,375
Response Time (avg)
24.87s
Total Cost
$0.478
Rank
#121
Total Output Tokens
4,915
Response Time (avg)
2.35s
Total Cost
$0.544
Recommended model GPT-5.5

It has the best score here (7.0), while responding about 10.6x faster than KAT-Coder-Pro V2.5 (medium).

Detailed comparison

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 7.0
Rank #126 #121
Reliability 10.0 10.0
Consistency 7.0 9.2
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 65.2% 59.1%
Flaky tests 8 2
Total Runs 66 66
Cost per result 4.342 4.533
Total Cost $0.478 $0.544
Input Price $0.740 / 1M $5.000 / 1M
Output Price $2.960 / 1M $30.000 / 1M
Total Input Tokens 87,916 79,294
Output Tokens 7,213 4,915
Reasoning Tokens 132,162 0
Response Time (avg) 24.87s 2.35s
Response Time (max) 257.00s 12.24s
Response Time (total) 547.14s 51.78s
Parameters ~700B total (~72B active) ~1.5T total (~100B active)
Availability Closed Closed

Model generation showcase

Hamster playing table tennis

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

#126 KAT-Coder-Pro V2.5

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

#121 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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