Run: 2026-02-16-01KHKAWJSDE3ZWQFWXFSRM68C2

Run Details

Model:: GPT-5 Nano
Test:: N-Length Sentences
Scenario:: Write sentences with 10 words each
Duration:: 15.2s
Cost:: $0.000643
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

The rain hammered the city as midnight shadows stretched inward. A candle guttered in the foyer, revealing a lifeless silhouette. The clock trembled, its hands stalled on a cruel minute. Silence pressed against the room, save for muffled breaths outside. Detective Mara stepped inside, cataloging whispers with practiced, wary calm. A note lay folded near the victim, ink still damp.

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