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

The average score is effectively tied at 8.0 vs 8.0. GPT-5.6 Luna (high) has the lower benchmark cost at $0.118 vs $0.674. GPT-5.6 Luna (high) is faster at 18.39s vs 40.33s, with pass rates of 68.1% vs 71.0%.

Last updated at: 2026-10-07

Compared models

Rank
#97
Total Output Tokens
196,626
Response Time (avg)
40.33s
Total Cost
$0.674
Rank
#96
Total Output Tokens
139,395
Response Time (avg)
18.39s
Total Cost
$0.118
Recommended model GPT-5.6 Luna (high)

It has the best score here (8.0), while costing about 5.7x 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 8.0 8.0
Rank #97 #96
Reliability 9.8 10.0
Consistency 8.9 8.6
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 68.1% 71.0%
Flaky tests 3 4
Total Runs 69 69
Cost per result 0.000 5.882
Total Cost $0.674 $0.118
Input Price $0.500 / 1M $0.200 / 1M
Output Price $2.200 / 1M $1.200 / 1M
Cache Read Price $0.100 / 1M $0.020 / 1M
Cache Write Price N/A $0.250 / 1M
Total Input Tokens 482,754 197,896
Output Tokens 62,455 6,211
Reasoning Tokens 141,067 133,184
Response Time (avg) 40.33s 18.39s
Response Time (max) 392.56s 111.09s
Response Time (total) 927.65s 422.93s
Parameters 550B total (55B active) ~400B total (~17B active)
Availability Weights available Closed

Cache prices apply to input tokens. Reads reuse cached prompts; writes store them and can cost extra. Output tokens use the output price.

Model generation showcase

Hamster playing table tennis

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

#97 Nemotron 3 Ultra

medium
Reached the allocated time limit (300 seconds) without receiving showcase output.
Cost
$0.000
Time
300.0s
Tokens
0 tok

#96 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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