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Run: 2025-05-22-01JVWKGWJ8SBEKEV4CSGDFK5RR
Run Details
Model:
Claude Opus 4
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
16.8s
Cost:
$0.017460
Evaluation summary
Score
Evaluator
Details Link
65.57%
Matches word count
(details)
Model input
User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 20 words. Please make sure that each sentence has the same length. Only return the opening itself.
Model response
Messages
Meta
AI
The grandfather clock struck midnight when Lady Pemberton discovered Lord William's body sprawled across the Persian rug, blood pooling. Inspector Margaret Hayes arrived within the hour, her keen gray eyes surveying the mahogany study with practiced, methodical precision. The victim's fingers clutched a torn photograph, its edges crimson, depicting five smiling faces from a long-ago Christmas party. Through the French doors, November rain pelted the windows while the household staff huddled together, whispering their fearful suspicions. The butler stood apart from the others, his usually impeccable white gloves now stained with something suspiciously dark and sticky. Lady Pemberton trembled in her silk nightgown, repeating the same words about hearing a terrible crash from the library. Inspector Hayes noted the overturned crystal decanter, the scattered chess pieces, and the peculiar absence of the murder weapon. The study door had been locked from inside, yet no key was found anywhere near Lord William's lifeless form.
total_cost
0.01746
Evaluation details
Result
Evaluator
Details
Meta Data
65.57%
Matches word count
n/a
neededClean
false
sentences
8
wordCounts
0
19
1
19
2
19
3
19
4
20
5
19
6
19
7
19