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Mercury 2.5 Preview (default) vs Laguna S 2.1 (low)

Mercury 2.5 Preview (default) leads on average score with 4.7 vs 4.6. Mercury 2.5 Preview (default) has the lower benchmark cost at $0.023 vs $0.108. Mercury 2.5 Preview (default) is faster at 7.05s vs 88.24s, with pass rates of 29.0% vs 23.2%.

Last updated at: 2026-10-16

Compared models

Rank
#353
Total Output Tokens
86,367
Response Time (avg)
7.05s
Total Cost
$0.023
Rank
#363
Total Output Tokens
437,706
Response Time (avg)
88.24s
Total Cost
$0.108
Recommended model Mercury 2.5 Preview (default)

It has the best score here (4.7), while costing about 4.7x less than Laguna S 2.1 (low).

Detailed comparison

Metric Mercury 2.5 Preview Mercury 2.5 Preview default Release: 2026-09-02 Laguna S 2.1 Laguna S 2.1 low Release: 2026-07-21 Free Available
Score 4.7 4.6
Rank #353 #363
Reliability 9.9 10.0
Consistency 8.3 7.8
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 29.0% 23.2%
Flaky tests 5 6
Total Runs 69 69
Cost per result 0.559 3.627
Total Cost $0.023 $0.108
Input Price $0.040 / 1M $0.090 / 1M
Output Price $0.150 / 1M $0.180 / 1M
Cache Read Price N/A $0.009 / 1M
Cache Write Price N/A N/A
Total Input Tokens 250,541 232,641
Output Tokens 86,367 69,335
Reasoning Tokens 0 426,182
Response Time (avg) 7.05s 88.24s
Response Time (max) 84.96s 814.73s
Response Time (total) 162.25s 2029.57s
Parameters ~100B 118B total (8B active)
Availability Closed Weights available

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.

#353 Mercury 2.5 Preview

default
Invalid SVG
Cost
$0.001
Time
3.3s
Tokens
3,122 tok

#363 Laguna S 2.1

low
Cost
$0.001
Time
6.6s
Tokens
1,314 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 4.7 7.9 22.2% 1 459ms 7,850 650 0
Laguna S 2.1 3.8 7.1 22.2% 1 167.51s 7,917 58,111 119,138

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