Model

GPT-4.1 Nano

Test

N-Length Sentences

Scenario

Write sentences with 20 words each

Run ID

2025-04-14-01JRTSXDXHRX4Z5742MQY9HNXM

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

AI
The fog crept through the silent streets as Detective Harris arrived at the crime scene, eyes scanning every shadow carefully. A single flickering lantern illuminated the alley, revealing a body sprawled awkwardly beneath a broken wooden crate. Nearby, shattered glass and discarded papers told a story of chaos, struggle, and hurried escape before the murderer's departure. Askew, the victim's face betrayed fear and pain, as blood pooled around him, slick and dark beneath the dim streetlamp glow. Clues lay scattered—an overturned chair, a torn piece of fabric, footsteps leading away into the shadows, silent witnesses to violence. Inside the nearby building, faint screams echoed, hinting at secrets perhaps better left hidden, waiting for discovery by keen eyes. Detective Harris knelt, examining footprints and blood splatters, knowing each detail would weave together the puzzle's tragic narrative. The night air grew colder as whispers of suspicion spread among neighbors, each with stories, fears, secrets buried deep inside themselves.
id"gen-1744656316-RuTWTRQyEeKgngVs8KOY" 
upstream_id"chatcmpl-BMJ5xVj3EwHYGXOPHQk6iVbTxOURL" 
total_cost0.0000874
cache_discount(null)
provider_name"OpenAI" 
created_at"2025-04-14T18:45:18.464813+00:00" Monday, April 14th, 2025 at 6:45:18 PM GMT+00:00
model"openai/gpt-4.1-nano-2025-04-14" 
app_id182717
streamedtrue
cancelledfalse
latency238
moderation_latency169
generation_time492
tokens_prompt42
tokens_completion207
native_tokens_prompt42
native_tokens_completion208
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" 
usage0.0000874

Evaluation details

Result Evaluator Details Meta Data
57.1571% Matches word count n/a
neededCleanfalse
sentences8
wordCounts
020
117
219
321
421
520
618
721