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KAT-Coder-Air V2.5 (low) vs Laguna S 2.1 (high)

The average score is effectively tied at 5.4 vs 5.4. KAT-Coder-Air V2.5 (low) has the lower benchmark cost at $0.046 vs $0.114. KAT-Coder-Air V2.5 (low) is faster at 10.63s vs 111.60s, with pass rates of 43.9% vs 27.3%.

Last updated at: 2026-09-04

Rank
#240
Total Output Tokens
60,414
Response Time (avg)
10.63s
Total Cost
$0.046
Rank
#245
Total Output Tokens
584,864
Response Time (avg)
111.60s
Total Cost
$0.114
Recommended model KAT-Coder-Air V2.5 (low)

It has the best score here (5.4), while costing about 2.5x less than Laguna S 2.1 (high).

Detailed comparison

Metric KAT-Coder-Air V2.5 KAT-Coder-Air V2.5 low Release: 2026-07-14 Laguna S 2.1 Laguna S 2.1 high Release: 2026-07-21 Free Available
Score 5.4 5.4
Rank #240 #245
Reliability 9.9 10.0
Consistency 7.8 8.1
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 43.9% 27.3%
Flaky tests 6 5
Total Runs 66 66
Cost per result 0.649 3.153
Total Cost $0.046 $0.114
Input Price $0.150 / 1M $0.090 / 1M
Output Price $0.600 / 1M $0.180 / 1M
Total Input Tokens 61,094 208,937
Output Tokens 6,532 175,588
Reasoning Tokens 53,882 409,276
Response Time (avg) 10.63s 111.60s
Response Time (max) 86.23s 1190.11s
Response Time (total) 233.77s 2455.24s
Parameters ~35B total (~3B active) 118B total (8B active)
Availability Closed Weights available

Model generation showcase

Hamster playing table tennis

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

#240 KAT-Coder-Air V2.5

low
Cost
$0.004
Time
29.9s
Tokens
6,008 tok

#245 Laguna S 2.1

high
Cost
$0.001
Time
6.8s
Tokens
1,389 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 3.5 7.3 11.1% 1 11.06s 7,893 2,001 13,623
Laguna S 2.1 5.3 7.2 44.4% 1 271.42s 6,496 59,355 151,009

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