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Nemotron 3.5 Lightning (medium) vs GPT-5.6 Luna

GPT-5.6 Luna leads on average score with 5.4 vs 5.1. GPT-5.6 Luna has the lower benchmark cost at $0.029 vs $0.156. GPT-5.6 Luna is faster at 1.50s vs 70.11s, with pass rates of 48.5% vs 36.4%.

Last updated at: 2026-08-20

Rank
#234
Total Output Tokens
760,441
Response Time (avg)
70.11s
Total Cost
$0.156
Rank
#221
Total Output Tokens
6,709
Response Time (avg)
1.50s
Total Cost
$0.029
Recommended model GPT-5.6 Luna

It has the best score here (5.4), while costing about 5.5x less than Nemotron 3.5 Lightning (medium).

Detailed comparison

Metric Nemotron 3.5 Lightning Nemotron 3.5 Lightning medium Release: 2026-08-11 Free Available GPT-5.6 Luna GPT-5.6 Luna none Release: 2026-07-09
Score 5.1 5.4
Rank #234 #221
Reliability 9.9 10.0
Consistency 6.0 8.8
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 48.5% 36.4%
Flaky tests 11 3
Total Runs 66 66
Cost per result 0.000 2.357
Total Cost $0.156 $0.029
Input Price $0.080 / 1M $0.200 / 1M
Output Price $0.200 / 1M $1.200 / 1M
Total Input Tokens 126,330 101,332
Output Tokens 165,702 6,709
Reasoning Tokens 594,739 0
Response Time (avg) 70.11s 1.50s
Response Time (max) 437.11s 10.57s
Response Time (total) 1542.52s 33.05s
Parameters 30B total (3B 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.

#234 Nemotron 3.5 Lightning

medium
Cost
$0.000
Time
130.5s
Tokens
6,750 tok

#221 GPT-5.6 Luna

none
Cost
$0.016
Time
15.8s
Tokens
2,685 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 3.5 Lightning 4.4 5.1 33.3% 2 285.47s 7,623 78,065 297,359
GPT-5.6 Luna 3.8 7.2 22.2% 1 980ms 7,302 459 0

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