Model

GPT-4.1

Test

N-Length Sentences

Scenario

Write sentences with 10 words each

Run ID

2025-04-14-01JRTSZS7Y0YBXWAEWPVQSFFCT

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

AI
Fog lingered along the cobblestone street as dawn approached slowly. Detective Marlowe’s footsteps echoed, steady and deliberate in the silence. A gloved hand clutching a notebook revealed his practiced, seasoned nerves. Lights flickered inside the bakery, promising warmth amidst the chill. Mrs. Crane appeared distraught, her apron stained and voice trembling quietly. “They found him there,” she whispered, gesturing toward the wooden counter. A crimson pool marred the flour, stark against the white. Marlowe knelt carefully, inspecting the lifeless figure sprawled near pastries. A single rose rested beside the victim’s open, empty hand. Somewhere outside, a clock chimed, announcing a new mystery’s beginning.
id"gen-1744656394-idSEcyLRb3r2gWrBqYAp" 
upstream_id"chatcmpl-BMJ7CHqa41RCKZUDRV0IhcZKhJvdV" 
total_cost0.00134
cache_discount(null)
provider_name"OpenAI" 
created_at"2025-04-14T18:46:37.11951+00:00" Monday, April 14th, 2025 at 6:46:37 PM GMT+00:00
model"openai/gpt-4.1-2025-04-14" 
app_id182717
streamedtrue
cancelledfalse
latency490
moderation_latency100
generation_time2195
tokens_prompt42
tokens_completion156
native_tokens_prompt42
native_tokens_completion157
native_tokens_reasoning0
num_media_prompt(null)
num_media_completion(null)
num_search_results(null)
origin"https://ncbench.com/" 
is_byokfalse
finish_reason"stop" 
native_finish_reason"stop" 
usage0.00134

Evaluation details

Result Evaluator Details Meta Data
92.2245% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
010
110
211
310
411
511
610
710
810
910