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

Nemotron 3.5 Lightning (medium) leads on average score with 4.7 vs 4.4. KAT Coder AIR V2.5 has the lower benchmark cost at $0.070 vs $0.137. KAT Coder AIR V2.5 is faster at 11.96s vs 81.93s, with pass rates of 34.8% vs 47.8%.

Last updated at: 2026-10-01

Compared models

Rank
#334
Total Output Tokens
97,752
Response Time (avg)
11.96s
Total Cost
$0.070
Rank
#315
Total Output Tokens
766,130
Response Time (avg)
81.93s
Total Cost
$0.137
Recommended model KAT Coder AIR V2.5

Its score stays close to the best score here (4.4 vs 4.7), while costing about 2.0x less than Nemotron 3.5 Lightning (medium).

Detailed comparison

Metric KAT Coder AIR V2.5 KAT Coder AIR V2.5 none Release: 2026-07-14 Nemotron 3.5 Lightning Nemotron 3.5 Lightning medium Release: 2026-08-11 Free Available
Score 4.4 4.7
Rank #334 #315
Reliability 10.0 9.8
Consistency 7.4 5.8
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 34.8% 47.8%
Flaky tests 7 12
Total Runs 69 69
Cost per result 1.382 0.000
Total Cost $0.070 $0.137
Input Price $0.150 / 1M $0.060 / 1M
Output Price $0.600 / 1M $0.170 / 1M
Cache Read Price N/A $0.030 / 1M
Cache Write Price N/A N/A
Total Input Tokens 69,376 195,780
Output Tokens 97,752 167,746
Reasoning Tokens 0 598,384
Response Time (avg) 11.96s 81.93s
Response Time (max) 121.05s 437.11s
Response Time (total) 275.18s 1884.31s
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.

#334 KAT Coder AIR V2.5

none
Cost
$0.002
Time
14.5s
Tokens
2,619 tok

#315 Nemotron 3.5 Lightning

medium
Cost
$0.000
Time
130.5s
Tokens
6,750 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 3.3 9.6 0.0% 0 14.31s 6,472 16,918 0
Nemotron 3.5 Lightning 4.4 5.1 33.3% 2 285.47s 7,623 78,065 297,359

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