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Claude Fable 5.1 (low) vs Space Bunny Alpha (xhigh)

Space Bunny Alpha (xhigh) leads on average score with 6.2 vs 6.2. Space Bunny Alpha (xhigh) has the lower benchmark cost at $0.000 vs $3.395. Claude Fable 5.1 (low) is faster at 11.40s vs 60.03s, with pass rates of 55.1% vs 55.1%.

Last updated at: 2026-10-01

Compared models

Rank
#231
Total Output Tokens
26,073
Response Time (avg)
11.40s
Total Cost
$3.395
Rank
#226
Total Output Tokens
381,919
Response Time (avg)
60.03s
Total Cost
$0.000
Recommended model Claude Fable 5.1 (low)

Its score stays close to the best score here (6.2 vs 6.2), while responding about 5.3x faster than Space Bunny Alpha (xhigh).

Detailed comparison

Metric Claude Fable 5.1 Claude Fable 5.1 low Release: 2026-09-02 Space Bunny Alpha Space Bunny Alpha xhigh Release: 2026-09-24
Score 6.2 6.2
Rank #231 #226
Reliability 10.0 10.0
Consistency 8.9 7.1
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 55.1% 55.1%
Flaky tests 3 8
Total Runs 69 69
Cost per result 30.862 0.000
Total Cost $3.395 $0.000
Input Price $10.000 / 1M $0.000 / 1M
Output Price $50.000 / 1M $0.000 / 1M
Total Input Tokens 209,116 363,310
Output Tokens 10,031 381,919
Reasoning Tokens 16,042 0
Response Time (avg) 11.40s 60.03s
Response Time (max) 34.77s 459.99s
Response Time (total) 262.14s 1380.67s
Parameters ~9.5T total (~878B active) -
Availability Closed Closed

Model generation showcase

Hamster playing table tennis

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

#231 Claude Fable 5.1

low
Cost
$0.126
Time
28.5s
Tokens
2,652 tok

#226 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
Claude Fable 5.1 3.4 10.0 0.0% 0 6.75s 10,608 1,753 0
Space Bunny Alpha 6.6 5.0 66.7% 2 10.64s 8,493 10,115 0

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