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Mercury 2.5 (medium) vs Solar Pro 4 (low)

Solar Pro 4 (low) leads on average score with 6.8 vs 6.8. Mercury 2.5 (medium) has the lower benchmark cost at $0.022 vs $0.044. Mercury 2.5 (medium) is faster at 3.19s vs 136.11s, with pass rates of 65.2% vs 60.6%.

Last updated at: 2026-09-08

Compared models

Rank
#157
Total Output Tokens
120,129
Response Time (avg)
3.19s
Total Cost
$0.022
Rank
#152
Total Output Tokens
338,373
Response Time (avg)
136.11s
Total Cost
$0.044
Recommended model Mercury 2.5 (medium)

Its score stays close to the best score here (6.8 vs 6.8), while costing about 2.0x less than Solar Pro 4 (low).

Detailed comparison

Metric Mercury 2.5 Mercury 2.5 medium Release: 2026-09-08 Solar Pro 4 Solar Pro 4 low Release: 2026-08-11
Score 6.8 6.8
Rank #157 #152
Reliability 9.8 10.0
Consistency 8.6 7.9
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 65.2% 60.6%
Flaky tests 4 6
Total Runs 66 66
Cost per result 0.181 0.394
Total Cost $0.022 $0.044
Input Price $0.040 / 1M $0.030 / 1M
Output Price $0.150 / 1M $0.120 / 1M
Total Input Tokens 91,402 90,556
Output Tokens 3,138 6,153
Reasoning Tokens 116,991 332,220
Response Time (avg) 3.19s 136.11s
Response Time (max) 9.87s 640.89s
Response Time (total) 70.18s 2994.49s
Parameters ~100B ~100B
Availability Closed Closed

Model generation showcase

Hamster playing table tennis

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

#157 Mercury 2.5

medium
Cost
$0.001
Time
3.8s
Tokens
3,386 tok

#152 Solar Pro 4

low
No showcase result has been generated for this model yet.
Cost
N/A
Time
-
Tokens
0 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 5.0 5.1 44.5% 2 3.70s 7,807 488 21,857
Solar Pro 4 5.5 7.4 44.4% 1 259.63s 6,033 515 76,894

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