Run: 2026-04-24-01KQ0MYCEE2YJFYES7CW6JW2QA

Run Details

Model:: GPT-5.5 (Reasoning, Low)
Test:: N-Length Sentences
Scenario:: Write sentences with 10 words each
Duration:: 10.3s
Cost:: $0.015715
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 10 words.
Please make sure that each sentence has the same length. Only return the opening itself.

Model response

Rain needled the manor windows as midnight swallowed everything whole.

Inspector Vale arrived late, carrying roses and a sealed warrant.

Inside, the chandelier trembled above guests pretending not to whisper.

Lord Ashcombe lay facedown, one hand clutching blackened silver cufflinks.

His wife stared calmly, her veil damp with garden rain.

The butler mentioned thunder, though no thunder had sounded tonight.

On the carpet, muddy footprints ended before reaching the body.

Then the grandfather clock struck thirteen, and someone began laughing.

Evaluation details

Result

Evaluator

Details

Meta Data

100.00%

Matches word count

n/a

neededClean

false

sentences

wordCounts

0	10
1	10
2	10
3	10
4	10
5	10
6	10
7	10