Run: 2026-04-24-01KQ0N7C6KYC7N0QK92KZS3CC5

Run Details

Model:: GPT-5.5 (Reasoning)
Test:: N-Length Sentences
Scenario:: Write sentences with 5 words each
Duration:: 11.7s
Cost:: $0.019405
Provider:: OpenAI

Evaluation summary

Score	Evaluator	Details Link
100.00%	Matches word count	(details)

Model input

User/Human

Please write the opening scene of a murder mystery where each sentence has exactly 5 words.
Please make sure that each sentence has the same length. Only return the opening itself.

Model response

Fog swallowed Blackthorn Manor tonight.
Inspector Vale arrived before dawn.
Rain stitched silver lines downward.
The gates groaned behind him.
Inside, candles guttered beside portraits.
Mrs. Hawke clutched black pearls.
Her sobbing sounded practiced, brittle.
Lord Blackthorn lay upstairs, murdered.
Blood darkened his white cravat.
A rose rested on him.
Its thorns were freshly clipped.
No one admitted knowing why.
Vale noticed muddy footprints vanish.
They ended beneath the piano.
Then his stopped clock chimed.
Everyone turned toward the library.
Something scratched inside the walls.

Evaluation details

Result

Evaluator

Details

Meta Data

100.00%

Matches word count

n/a

neededClean

false

sentences

wordCounts

0	5
1	5
2	5
3	5
4	5
5	5
6	5
7	5
8	5
9	5
10	5
11	5
12	5
13	5
14	5
15	5
16	5