AI BENCHY Compare

Kwaipilot: KAT-Coder-Air V2.5 vs Nemotron 3 Ultra 550b A55b

Summary

Nemotron 3 Ultra 550b A55b (medium) leads on average score with 8.1 vs 6.2. KAT-Coder-Air V2.5 (medium) has the lower benchmark cost at $0.045 vs $0.158. KAT-Coder-Air V2.5 (medium) is faster at 8.28s vs 15.05s, with pass rates of 47.6% vs 69.8%.

Recommended modelNemotron 3 Ultra 550b A55b (medium)It has the strongest score in this comparison (8.1) and the best overall balance of cost and response time across all 2 models.

Last updated at: 2026-07-14

Metric	KAT-Coder-Air V2.5 KAT-Coder-Air V2.5 medium Release: 2026-07-14	Nemotron 3 Ultra 550b A55b Nemotron 3 Ultra 550b A55b medium Release: 2026-06-04 Free Available

Metric	KAT-Coder-Air V2.5 KAT-Coder-Air V2.5 medium Release: 2026-07-14	Nemotron 3 Ultra 550b A55b Nemotron 3 Ultra 550b A55b medium Release: 2026-06-04 Free Available
Score	6.2	8.1
Rank	#115	#31
Reliability	9.7	9.7
Consistency	8.8	8.8
Tests Correct
Attempt pass rate	47.6%	69.8%
Flaky tests	3	3
Total Runs	63	63
Cost per result	0.562	0.000
Total Cost	$0.045	$0.158
Input Price	$0.150 / 1M	$0.500 / 1M
Output Price	$0.600 / 1M	$2.200 / 1M
Total Input Tokens	42,750	46,813
Output Tokens	7,759	18,002
Reasoning Tokens	56,357	53,091
Response Time (avg)	8.28s	15.05s
Response Time (max)	48.19s	43.93s
Response Time (total)	173.80s	316.09s

Generation showcase

Hamster playing table tennis

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

#115 KAT-Coder-Air V2.5

medium

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

#31 Nemotron 3 Ultra 550b A55b

medium

Invalid SVG

Cost: $0.000
Time: 300.0s
Tokens: 0 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

Category:

Anti-AI Tricks	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
KAT-Coder-Air V2.5	8.7	8.0	91.7%	1		3.79s	672	549	4,194
Nemotron 3 Ultra 550b A55b	10.0	10.0	100.0%	0		8.62s	780	835	1,485

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 Ultra 550b A55b	8.4	7.4	88.9%	1		26.53s	7,686	2,854	17,725

Combined	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
KAT-Coder-Air V2.5	10.0	10.0	100.0%	0		27.68s	15,132	372	4,816
Nemotron 3 Ultra 550b A55b	9.8	10.0	100.0%	0		43.93s	17,574	1,040	3,590

Data parsing and extraction	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
KAT-Coder-Air V2.5	6.5	10.0	50.0%	0		3.65s	7,776	268	1,881
Nemotron 3 Ultra 550b A55b	10.0	10.0	100.0%	0		5.68s	7,989	473	1,285

Domain specific	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
KAT-Coder-Air V2.5	3.0	10.0	0.0%	0		4.87s	771	487	4,454
Nemotron 3 Ultra 550b A55b	3.5	4.4	33.3%	2		24.90s	858	11,169	16,249

General Intelligence	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
KAT-Coder-Air V2.5	5.0	10.0	0.0%	0		9.81s	516	189	557
Nemotron 3 Ultra 550b A55b	3.7	9.5	0.0%	0		2.52s	360	70	235

Instructions following	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
KAT-Coder-Air V2.5	10.0	10.0	100.0%	0		1.50s	699	93	730
Nemotron 3 Ultra 550b A55b	9.8	10.0	100.0%	0		6.35s	765	182	1,243

Puzzle Solving	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	7.2	22.2%	1		1.87s	696	265	1,184
Nemotron 3 Ultra 550b A55b	5.5	9.9	33.3%	0		3.54s	792	771	2,055

Tool Calling	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
KAT-Coder-Air V2.5	10.0	10.0	100.0%	0		4.77s	8,391	317	906
Nemotron 3 Ultra 550b A55b	10.0	10.0	100.0%	0		7.72s	9,781	304	984

Trivia	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
KAT-Coder-Air V2.5	3.0	10.0	0.0%	0		15.74s	204	20	7,662
Nemotron 3 Ultra 550b A55b	3.0	10.0	0.0%	0		38.47s	228	304	8,240

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