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Nemotron 3 Ultra 550b A55b vs StepFun: Step 3.5 Flash

Last updated at: 2026-06-04

Metric Nemotron 3 Ultra 550b A55b Nemotron 3 Ultra 550b A55b medium Release: 2026-06-04 Free Available Step 3.5 Flash Step 3.5 Flash medium Release: 2026-02-01
Score 7.5 7.2
Rank #41 #62
Reliability 9.7 10.0
Consistency 8.8 9.4
Tests Correct
Attempt pass rate 69.8% 56.7%
Flaky tests 3 1
Total Runs 63 60
Cost per result 0.000 0.198
Total Cost $0.000 $0.070
Input Price $0.000 / 1M $0.090 / 1M
Output Price $0.000 / 1M $0.300 / 1M
Total Input Tokens 46,813 34,431
Output Tokens 18,002 91,587
Reasoning Tokens 53,091 195,973
Response Time (avg) 15.05s 72.53s
Response Time (max) 43.93s 453.94s
Response Time (total) 316.09s 1015.47s

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Category Breakdown

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Nemotron 3 Ultra 550b A55b 10.0 10.0 100.0% 0 8.62s 780 835 1,485
Step 3.5 Flash 10.0 10.0 100.0% 0 40.57s 694 20,391 24,176
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Nemotron 3 Ultra 550b A55b 8.4 7.4 88.9% 1 26.53s 7,686 2,854 17,725
Step 3.5 Flash 3.5 7.8 0.0% 0 258.38s 2,211 13,207 22,429
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Nemotron 3 Ultra 550b A55b 9.8 10.0 100.0% 0 43.93s 17,574 1,040 3,590
Step 3.5 Flash 10.0 10.0 100.0% 0 29.57s 13,638 1,176 12,984
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Nemotron 3 Ultra 550b A55b 10.0 10.0 100.0% 0 5.68s 7,989 473 1,285
Step 3.5 Flash 10.0 10.0 100.0% 0 15.01s 7,368 600 13,886
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Nemotron 3 Ultra 550b A55b 3.5 4.4 33.3% 2 24.90s 858 11,169 16,249
Step 3.5 Flash 5.3 7.2 44.4% 1 170.45s 673 45,350 90,436
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Nemotron 3 Ultra 550b A55b 3.7 9.5 0.0% 0 2.52s 360 70 235
Step 3.5 Flash 5.5 10.0 0.0% 0 22.39s 509 240 3,506
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Nemotron 3 Ultra 550b A55b 9.8 10.0 100.0% 0 6.35s 765 182 1,243
Step 3.5 Flash 8.3 10.0 50.0% 0 4.78s 705 2,364 3,521
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Nemotron 3 Ultra 550b A55b 5.5 9.9 33.3% 0 3.54s 792 771 2,055
Step 3.5 Flash 5.3 10.0 33.3% 0 7.22s 711 5,630 10,861
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Nemotron 3 Ultra 550b A55b 10.0 10.0 100.0% 0 7.72s 9,781 304 984
Step 3.5 Flash 10.0 10.0 100.0% 0 11.91s 7,701 275 3,802
Trivia Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Nemotron 3 Ultra 550b A55b 3.0 10.0 0.0% 0 38.47s 228 304 8,240
Step 3.5 Flash 3.0 10.0 0.0% 0 108.45s 221 2,354 10,372

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