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Mercury 2.5 Preview (low) vs Nemotron 3.5 Lightning (medium)

Nemotron 3.5 Lightning (medium) leads on average score with 5.1 vs 5.0. Mercury 2.5 Preview (low) has the lower benchmark cost at $0.011 vs $0.156. Mercury 2.5 Preview (low) is faster at 1.31s vs 70.11s, with pass rates of 47.0% vs 48.5%.

Last updated at: 2026-09-02

Rank
#254
Total Output Tokens
31,975
Response Time (avg)
1.31s
Total Cost
$0.011
Rank
#244
Total Output Tokens
760,441
Response Time (avg)
70.11s
Total Cost
$0.156
Recommended model Mercury 2.5 Preview (low)

Its score stays close to the best score here (5.0 vs 5.1), while costing about 15.3x less than Nemotron 3.5 Lightning (medium).

Detailed comparison

Metric Mercury 2.5 Preview Mercury 2.5 Preview low Release: 2026-09-02 Nemotron 3.5 Lightning Nemotron 3.5 Lightning medium Release: 2026-08-11 Free Available
Score 5.0 5.1
Rank #254 #244
Reliability 10.0 9.9
Consistency 7.0 6.0
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 47.0% 48.5%
Flaky tests 8 11
Total Runs 66 66
Cost per result 0.169 0.000
Total Cost $0.011 $0.156
Input Price $0.040 / 1M $0.080 / 1M
Output Price $0.150 / 1M $0.200 / 1M
Total Input Tokens 133,525 126,330
Output Tokens 7,259 165,702
Reasoning Tokens 24,716 594,739
Response Time (avg) 1.31s 70.11s
Response Time (max) 7.29s 437.11s
Response Time (total) 28.77s 1542.52s
Parameters ~100B 30B total (3B active)
Availability Closed Weights available

Model generation showcase

Hamster playing table tennis

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

#254 Mercury 2.5 Preview

low
Cost
$0.001
Time
1.5s
Tokens
1,169 tok

#244 Nemotron 3.5 Lightning

medium
Cost
$0.000
Time
130.5s
Tokens
6,750 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
Mercury 2.5 Preview 5.5 10.0 33.3% 0 972ms 7,794 695 2,263
Nemotron 3.5 Lightning 4.4 5.1 33.3% 2 285.47s 7,623 78,065 297,359

Quick Compare

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