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Nemotron 3 Ultra (medium) vs GPT-5.6 Luna (high)

The average score is effectively tied at 7.6 vs 7.6. GPT-5.6 Luna (high) has the lower benchmark cost at $0.179 vs $0.780. GPT-5.6 Luna (high) is faster at 16.49s vs 33.62s, with pass rates of 66.7% vs 69.7%.

Last updated at: 2026-08-20

Rank
#80
Total Output Tokens
184,405
Response Time (avg)
33.62s
Total Cost
$0.780
Rank
#78
Total Output Tokens
135,315
Response Time (avg)
16.49s
Total Cost
$0.179
Recommended model GPT-5.6 Luna (high)

It has the best score here (7.6), while costing about 4.4x less than Nemotron 3 Ultra (medium).

Detailed comparison

Metric Nemotron 3 Ultra Nemotron 3 Ultra medium Release: 2026-06-04 Free Available GPT-5.6 Luna GPT-5.6 Luna high Release: 2026-07-09
Score 7.6 7.6
Rank #80 #78
Reliability 9.8 10.0
Consistency 8.8 8.5
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 66.7% 69.7%
Flaky tests 3 4
Total Runs 66 66
Cost per result 0.000 6.100
Total Cost $0.780 $0.179
Input Price $0.600 / 1M $0.200 / 1M
Output Price $3.600 / 1M $1.200 / 1M
Total Input Tokens 233,415 80,927
Output Tokens 54,384 5,088
Reasoning Tokens 130,021 130,227
Response Time (avg) 33.62s 16.49s
Response Time (max) 392.56s 111.09s
Response Time (total) 739.59s 362.78s
Parameters 550B total (55B active) ~400B total (~17B active)
Availability Weights available Closed

Model generation showcase

Hamster playing table tennis

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

#80 Nemotron 3 Ultra

medium
Invalid SVG
Cost
$0.000
Time
300.0s
Tokens
0 tok

#78 GPT-5.6 Luna

high
Cost
$0.033
Time
34.2s
Tokens
5,484 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
Nemotron 3 Ultra 8.4 7.4 88.9% 1 26.53s 7,686 2,854 17,725
GPT-5.6 Luna 5.5 4.7 55.6% 2 15.63s 7,302 510 17,746

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