Navigate
Advertise here

KAT Coder AIR V2.5 (medium) vs Nemotron 3.5 Lightning (high)

Nemotron 3.5 Lightning (high) leads on average score with 5.2 vs 5.1. KAT Coder AIR V2.5 (medium) has the lower benchmark cost at $0.048 vs $0.168. KAT Coder AIR V2.5 (medium) is faster at 8.32s vs 77.08s, with pass rates of 43.5% vs 47.8%.

Last updated at: 2026-11-10

Compared models

Rank
#378
Total Output Tokens
66,576
Response Time (avg)
8.32s
Total Cost
$0.048
Rank
#371
Total Output Tokens
626,081
Response Time (avg)
77.08s
Total Cost
$0.168
Recommended model KAT Coder AIR V2.5 (medium)

Its score stays close to the best score here (5.1 vs 5.2), while costing about 3.5x less than Nemotron 3.5 Lightning (high).

Detailed comparison

Metric KAT Coder AIR V2.5 KAT Coder AIR V2.5 medium Release: 2026-07-14 Nemotron 3.5 Lightning Nemotron 3.5 Lightning high Release: 2026-08-11 Free Available
Score 5.1 5.2
Rank #378 #371
Reliability 9.6 9.6
Consistency 8.9 5.7
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 43.5% 47.8%
Flaky tests 3 12
Total Runs 69 69
Cost per result 0.596 0.000
Total Cost $0.048 $0.168
Input Price $0.150 / 1M $0.060 / 1M
Output Price $0.600 / 1M $0.160 / 1M
Cache Read Price N/A $0.030 / 1M
Cache Write Price N/A N/A
Total Input Tokens 51,369 170,517
Output Tokens 8,008 149,968
Reasoning Tokens 58,568 509,725
Response Time (avg) 8.32s 77.08s
Response Time (max) 48.19s 490.99s
Response Time (total) 191.40s 1772.78s
Parameters ~35B total (~3B active) 30B total (3B active)
Availability Closed Weights available

Cache prices apply to input tokens. Reads reuse cached prompts; writes store them and can cost extra. Output tokens use the output price.

Model generation showcase

Hamster playing table tennis

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

#378 KAT Coder AIR V2.5

medium
Cost
$0.003
Time
23.7s
Tokens
4,924 tok

#371 Nemotron 3.5 Lightning

high
Cost
$0.000
Time
92.8s
Tokens
11,343 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 3.6 7.0 22.2% 1 23.37s 7,893 5,199 29,973
Nemotron 3.5 Lightning 4.4 5.1 33.3% 2 168.41s 7,623 68,533 242,319

Switch Comparison Pair