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MoonshotAI: Kimi K2.5 vs Nemotron 3 Ultra 550b A55b

Summary

Kimi K2.5 vs Nemotron 3 Ultra 550b A55b benchmark comparison: Nemotron 3 Ultra 550b A55b leads on average score with 6.1 vs 5.5. Nemotron 3 Ultra 550b A55b has the lower benchmark cost at $0.027 vs $0.027. Nemotron 3 Ultra 550b A55b is faster at 2.27s vs 13.18s, with pass rates of 34.9% vs 44.4%.

Recommended model: Nemotron 3 Ultra 550b A55b - It has the best score here (6.1), while responding about 5.8x faster than Kimi K2.5.

Last updated at: 2026-07-09

Metric Kimi K2.5 Kimi K2.5 none Release: 2026-01-27 Nemotron 3 Ultra 550b A55b Nemotron 3 Ultra 550b A55b none Release: 2026-06-04 Free Available
Score 5.5 6.1
Rank #135 #114
Reliability 10.0 10.0
Consistency 8.9 9.2
Tests Correct
Attempt pass rate 34.9% 44.4%
Flaky tests 3 2
Total Runs 63 63
Cost per result 0.442 0.000
Total Cost $0.027 $0.027
Input Price $0.375 / 1M $0.500 / 1M
Output Price $2.025 / 1M $2.200 / 1M
Total Input Tokens 36,034 43,326
Output Tokens 6,657 2,138
Reasoning Tokens 0 0
Response Time (avg) 13.18s 2.27s
Response Time (max) 42.13s 13.49s
Response Time (total) 184.47s 47.65s

Generation showcase

Hamster playing table tennis

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

#135 MoonshotAI: Kimi K2.5

none
Cost
$0.015
Time
89.1s
Tokens
5,421 tok

#114 Nemotron 3 Ultra 550b A55b

none
Cost
$0.000
Time
149.6s
Tokens
3,405 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

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Kimi K2.5 3.6 8.4 8.3% 1 6.24s 652 373 0
Nemotron 3 Ultra 550b A55b 3.5 8.0 16.7% 1 2.35s 696 239 0
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Kimi K2.5 5.5 10.0 33.3% 0 24.56s 7,311 4,708 0
Nemotron 3 Ultra 550b A55b 5.5 10.0 33.3% 0 1.02s 7,623 369 0
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Kimi K2.5 2.8 2.1 33.3% 1 19.16s 12,264 748 0
Nemotron 3 Ultra 550b A55b 3.0 10.0 0.0% 0 4.79s 15,558 357 0
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Kimi K2.5 7.3 5.8 83.3% 1 42.13s 7,180 187 0
Nemotron 3 Ultra 550b A55b 10.0 10.0 100.0% 0 1.94s 7,944 249 0
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Kimi K2.5 5.3 10.0 33.3% 0 4.38s 753 29 0
Nemotron 3 Ultra 550b A55b 5.3 10.0 33.3% 0 698ms 789 27 0
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Kimi K2.5 10.0 10.0 100.0% 0 4.00s 483 76 0
Nemotron 3 Ultra 550b A55b 5.0 10.0 0.0% 0 13.49s 516 101 0
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Kimi K2.5 6.5 10.0 50.0% 0 2.67s 677 60 0
Nemotron 3 Ultra 550b A55b 10.0 10.0 100.0% 0 1.46s 723 69 0
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Kimi K2.5 3.0 10.0 0.0% 0 4.04s 667 236 0
Nemotron 3 Ultra 550b A55b 5.9 7.2 55.6% 1 1.06s 726 352 0
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Kimi K2.5 10.0 10.0 100.0% 0 13.99s 5,835 220 0
Nemotron 3 Ultra 550b A55b 10.0 10.0 100.0% 0 2.99s 8,544 264 0
Trivia Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Kimi K2.5 3.0 10.0 0.0% 0 3.90s 212 20 0
Nemotron 3 Ultra 550b A55b 3.0 10.0 0.0% 0 1.83s 207 111 0

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