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Mercury 2.5 Preview (medium) vs Space Bunny Alpha (max)

Mercury 2.5 Preview (medium) leads on average score with 6.8 vs 6.7. Space Bunny Alpha (max) has the lower benchmark cost at $0.000 vs $0.037. Mercury 2.5 Preview (medium) is faster at 6.66s vs 36.24s, with pass rates of 66.7% vs 59.4%.

Last updated at: 2026-10-01

Compared models

Rank
#171
Total Output Tokens
150,107
Response Time (avg)
6.66s
Total Cost
$0.037
Rank
#173
Total Output Tokens
219,014
Response Time (avg)
36.24s
Total Cost
$0.000
Recommended model Mercury 2.5 Preview (medium)

It has the best score here (6.8), while responding about 5.4x faster than Space Bunny Alpha (max).

Detailed comparison

Metric Mercury 2.5 Preview Mercury 2.5 Preview medium Release: 2026-09-02 Space Bunny Alpha Space Bunny Alpha max Release: 2026-09-24
Score 6.8 6.7
Rank #171 #173
Reliability 10.0 10.0
Consistency 9.6 8.3
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 66.7% 59.4%
Flaky tests 1 5
Total Runs 69 69
Cost per result 0.244 0.000
Total Cost $0.037 $0.000
Input Price $0.000 / 1M $0.000 / 1M
Output Price $0.000 / 1M $0.000 / 1M
Total Input Tokens 397,291 315,136
Output Tokens 6,355 219,014
Reasoning Tokens 143,752 0
Response Time (avg) 6.66s 36.24s
Response Time (max) 74.63s 320.00s
Response Time (total) 153.29s 833.43s
Parameters ~100B -
Availability Closed Closed

Model generation showcase

Hamster playing table tennis

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

#171 Mercury 2.5 Preview

medium
Cost
$0.001
Time
2.7s
Tokens
2,241 tok

#173 Space Bunny Alpha

max
Cost
$0.000
Time
183.9s
Tokens
19,570 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 7.8 10.0 66.7% 0 3.86s 7,839 552 22,126
Space Bunny Alpha 5.7 7.1 44.4% 1 17.08s 8,493 16,335 0

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