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Mercury 2.5 (low) vs Nemotron 3.5 Lightning (high)

Nemotron 3.5 Lightning (high) leads on average score with 5.2 vs 5.1. Mercury 2.5 (low) has the lower benchmark cost at $0.020 vs $0.111. Mercury 2.5 (low) is faster at 3.34s vs 77.08s, with pass rates of 37.7% vs 47.8%.

Last updated at: 2026-10-01

Compared models

Rank
#293
Total Output Tokens
40,302
Response Time (avg)
3.34s
Total Cost
$0.020
Rank
#287
Total Output Tokens
659,693
Response Time (avg)
77.08s
Total Cost
$0.111
Recommended model Mercury 2.5 (low)

Its score stays close to the best score here (5.1 vs 5.2), while costing about 5.8x less than Nemotron 3.5 Lightning (high).

Detailed comparison

Metric Mercury 2.5 Mercury 2.5 low Release: 2026-09-08 Nemotron 3.5 Lightning Nemotron 3.5 Lightning high Release: 2026-08-11 Free Available
Score 5.1 5.2
Rank #293 #287
Reliability 9.8 9.6
Consistency 8.2 5.7
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 37.7% 47.8%
Flaky tests 5 12
Total Runs 69 69
Cost per result 0.319 0.000
Total Cost $0.020 $0.111
Input Price $0.040 / 1M $0.060 / 1M
Output Price $0.150 / 1M $0.160 / 1M
Total Input Tokens 326,083 170,517
Output Tokens 7,224 149,968
Reasoning Tokens 33,078 509,725
Response Time (avg) 3.34s 77.08s
Response Time (max) 47.06s 490.99s
Response Time (total) 76.80s 1772.78s
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.

#293 Mercury 2.5

low
Cost
$0.001
Time
2.4s
Tokens
1,236 tok

#287 Nemotron 3.5 Lightning

high
Cost
$0.000
Time
92.8s
Tokens
11,343 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 5.5 10.0 33.3% 0 972ms 7,909 521 2,269
Nemotron 3.5 Lightning 4.4 5.1 33.3% 2 168.41s 7,623 68,533 242,319

Quick Compare

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