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Nemotron 3 Ultra 550b A55b vs Grok 4.20 Beta

Summary

Nemotron 3 Ultra 550b A55b vs Grok 4.20 Beta benchmark comparison: Grok 4.20 Beta leads on average score with 8.5 vs 7.5. Nemotron 3 Ultra 550b A55b has the lower benchmark cost at $0.177 vs $0.750. Grok 4.20 Beta is faster at 9.75s vs 15.05s, with pass rates of 69.8% vs 81.5%.

Recommended model: Nemotron 3 Ultra 550b A55b - It offers the best overall trade-off: a competitive score (7.5), lower cost than Grok 4.20 Beta, and balanced response time.

Last updated at: 2026-06-10

Metric Nemotron 3 Ultra 550b A55b Nemotron 3 Ultra 550b A55b medium Release: 2026-06-04 Free Available Grok 4.20 Beta Grok 4.20 Beta medium Release: 2026-03-12
Score 7.5 8.5
Rank #42 #14
Reliability 9.7 N/A
Consistency 8.8 9.5
Tests Correct
Attempt pass rate 69.8% 81.5%
Flaky tests 3 1
Total Runs 63 52
Cost per result 0.000 4.505
Total Cost $0.177 $0.750
Input Price $0.500 / 1M $5.805 / 1M
Output Price $2.500 / 1M $5.805 / 1M
Total Input Tokens 46,813 35,955
Output Tokens 18,002 1,647
Reasoning Tokens 53,091 91,565
Response Time (avg) 15.05s 9.75s
Response Time (max) 43.93s 31.36s
Response Time (total) 316.09s 175.48s

Generation showcase

Hamster playing table tennis

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

#42 Nemotron 3 Ultra 550b A55b

medium
No showcase result has been generated for this model yet.
Cost
$0.000
Time
-
Tokens
0 tok

#14 Grok 4.20 Beta

medium
Cost
$0.034
Time
91.0s
Tokens
13,523 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
Nemotron 3 Ultra 550b A55b 10.0 10.0 100.0% 0 8.62s 780 835 1,485
Grok 4.20 Beta 8.7 7.9 91.7% 1 3.16s 2,010 268 7,583
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
Grok 4.20 Beta 10.0 10.0 100.0% 0 31.36s 360 81 3,987
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
Grok 4.20 Beta 10.0 10.0 100.0% 0 20.93s 12,909 227 12,212
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
Grok 4.20 Beta 10.0 10.0 100.0% 0 4.01s 7,761 180 5,281
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
Grok 4.20 Beta 5.3 10.0 33.3% 0 21.33s 1,764 251 40,255
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
Grok 4.20 Beta 10.0 10.0 100.0% 0 5.78s 825 72 3,440
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
Grok 4.20 Beta 9.8 10.0 100.0% 0 4.89s 1,362 57 7,123
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
Grok 4.20 Beta 10.0 10.0 100.0% 0 3.52s 1,689 328 6,300
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
Grok 4.20 Beta 3.0 10.0 0.0% 0 12.39s 7,275 183 5,384
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
Grok 4.20 Beta - - - - - - - - -

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