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Mercury 2.5 (low) vs KAT Coder AIR V2.5 (medium)

The average score is effectively tied at 5.1 vs 5.1. Mercury 2.5 (low) has the lower benchmark cost at $0.020 vs $0.048. Mercury 2.5 (low) is faster at 3.34s vs 8.32s, with pass rates of 37.7% vs 43.5%.

Last updated at: 2026-10-01

Compared models

Rank
#293
Total Output Tokens
40,302
Response Time (avg)
3.34s
Total Cost
$0.020
Rank
#294
Total Output Tokens
66,576
Response Time (avg)
8.32s
Total Cost
$0.048
Recommended model Mercury 2.5 (low)

It has the best score here (5.1), while costing about 2.5x less than KAT Coder AIR V2.5 (medium).

Detailed comparison

Metric Mercury 2.5 Mercury 2.5 low Release: 2026-09-08 KAT Coder AIR V2.5 KAT Coder AIR V2.5 medium Release: 2026-07-14
Score 5.1 5.1
Rank #293 #294
Reliability 9.8 9.6
Consistency 8.2 8.9
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 37.7% 43.5%
Flaky tests 5 3
Total Runs 69 69
Cost per result 0.319 0.596
Total Cost $0.020 $0.048
Input Price $0.040 / 1M $0.000 / 1M
Output Price $0.150 / 1M $0.000 / 1M
Total Input Tokens 326,083 51,369
Output Tokens 7,224 8,008
Reasoning Tokens 33,078 58,568
Response Time (avg) 3.34s 8.32s
Response Time (max) 47.06s 48.19s
Response Time (total) 76.80s 191.40s
Parameters ~100B ~35B total (~3B active)
Availability Closed Closed

Model generation showcase

Hamster playing table tennis

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

#293 Mercury 2.5

low
Cost
$0.001
Time
2.4s
Tokens
1,236 tok

#294 KAT Coder AIR V2.5

medium
Cost
$0.003
Time
23.7s
Tokens
4,924 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
Mercury 2.5 5.5 10.0 33.3% 0 972ms 7,909 521 2,269
KAT Coder AIR V2.5 3.6 7.0 22.2% 1 23.37s 7,893 5,199 29,973

Quick Compare

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