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Mercury 2.5 Preview (high) vs Space Bunny Alpha (xhigh)

Mercury 2.5 Preview (high) leads on average score with 6.6 vs 6.5. Space Bunny Alpha (xhigh) has the lower benchmark cost at $0.000 vs $0.030. Mercury 2.5 Preview (high) is faster at 4.01s vs 55.53s, with pass rates of 65.2% vs 56.1%.

Last updated at: 2026-09-24

Compared models

Rank
#199
Total Output Tokens
163,505
Response Time (avg)
4.01s
Total Cost
$0.030
Rank
#204
Total Output Tokens
352,867
Response Time (avg)
55.53s
Total Cost
$0.000
Recommended model Mercury 2.5 Preview (high)

It has the best score here (6.6), while responding about 13.8x faster than Space Bunny Alpha (xhigh).

Detailed comparison

Metric Mercury 2.5 Preview Mercury 2.5 Preview high Release: 2026-09-02 Space Bunny Alpha Space Bunny Alpha xhigh Release: 2026-09-24
Score 6.6 6.5
Rank #199 #204
Reliability 10.0 10.0
Consistency 8.2 7.3
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 65.2% 56.1%
Flaky tests 5 7
Total Runs 66 66
Cost per result 0.243 0.000
Total Cost $0.030 $0.000
Input Price $0.040 / 1M $0.000 / 1M
Output Price $0.150 / 1M $0.000 / 1M
Total Input Tokens 115,759 138,715
Output Tokens 2,562 352,867
Reasoning Tokens 160,943 0
Response Time (avg) 4.01s 55.53s
Response Time (max) 17.71s 459.99s
Response Time (total) 88.25s 1221.55s
Parameters ~100B -
Availability Closed Closed

Model generation showcase

Hamster playing table tennis

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

#199 Mercury 2.5 Preview

high
Cost
$0.001
Time
4.5s
Tokens
3,851 tok

#204 Space Bunny Alpha

xhigh
Cost
$0.000
Time
98.6s
Tokens
10,913 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 6.7 7.8 55.6% 1 6.13s 7,751 485 42,569
Space Bunny Alpha 6.6 5.0 66.7% 2 10.64s 8,493 10,115 0

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