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GPT-5.6 Luna (medium) vs Space Bunny Alpha (high)

Space Bunny Alpha (high) leads on average score with 7.5 vs 7.4. Space Bunny Alpha (high) has the lower benchmark cost at $0.000 vs $0.101. GPT-5.6 Luna (medium) is faster at 9.64s vs 29.38s, with pass rates of 62.3% vs 63.8%.

Last updated at: 2026-10-01

Compared models

Rank
#122
Total Output Tokens
47,986
Response Time (avg)
9.64s
Total Cost
$0.101
Rank
#118
Total Output Tokens
181,271
Response Time (avg)
29.38s
Total Cost
$0.000
Recommended model GPT-5.6 Luna (medium)

Its score stays close to the best score here (7.4 vs 7.5), while responding about 3.0x faster than Space Bunny Alpha (high).

Detailed comparison

Metric GPT-5.6 Luna GPT-5.6 Luna medium Release: 2026-07-09 Space Bunny Alpha Space Bunny Alpha high Release: 2026-09-24
Score 7.4 7.5
Rank #122 #118
Reliability 10.0 10.0
Consistency 9.0 8.5
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 62.3% 63.8%
Flaky tests 3 4
Total Runs 69 69
Cost per result 2.822 0.000
Total Cost $0.101 $0.000
Input Price $0.200 / 1M $0.000 / 1M
Output Price $1.200 / 1M $0.000 / 1M
Total Input Tokens 212,780 302,228
Output Tokens 6,849 181,271
Reasoning Tokens 41,137 0
Response Time (avg) 9.64s 29.38s
Response Time (max) 58.09s 234.56s
Response Time (total) 221.62s 675.79s
Parameters ~400B total (~17B active) -
Availability Closed Closed

Model generation showcase

Hamster playing table tennis

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

#122 GPT-5.6 Luna

medium
Cost
$0.014
Time
14.6s
Tokens
2,362 tok

#118 Space Bunny Alpha

high
Cost
$0.000
Time
76.4s
Tokens
8,935 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
GPT-5.6 Luna 5.4 7.2 44.4% 1 10.38s 7,302 564 9,928
Space Bunny Alpha 6.2 7.1 55.6% 1 8.29s 8,493 8,006 0

Quick Compare

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