Run: 2026-02-20-01KHXQ3G7TCHA55BXT4F1PHNCQ

Run Details

Duration:
4.7s
Cost:
$0.000112
Provider:
Mistral

Evaluation summary

Score Evaluator
Details Link
26.82% Matches word count (details)

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 rain drummed against the cobblestones as Detective Harlow hurried through the narrow alleyway, his coat damp. A flickering streetlamp cast long shadows, twisting the familiar streets into something sinister and unfamiliar to him. The distant wail of sirens cut through the night, a haunting melody that sent a chill down his spine. A crumpled figure lay sprawled in the gutter, motionless, their face obscured by a pool of dark liquid. Harlow’s breath hitched as he knelt beside the body, his gloved fingers brushing the victim’s cold, lifeless hand. The victim’s eyes stared blankly at the stormy sky, frozen in an expression of sheer, unyielding terror. A single playing card—the ace of spades—was clutched tightly in the victim’s stiffened fingers, a macabre clue. Harlow’s pulse quickened as he scanned the scene, his instincts screaming that this was no ordinary murder. The alley reeked of damp earth and something metallic, the scent of violence lingering in the air like a curse. Footsteps echoed behind him, slow and deliberate, as if someone was watching him from the darkness. A shadowy figure lingered at the alley’s mouth, their face hidden beneath the brim of a wide hat. Harlow stood abruptly, his hand resting on the revolver at his hip, his body tense with anticipation. The figure took a single step forward, then vanished into the night, leaving only silence in their wake. The detective exhaled sharply, his mind racing as he tried to piece together the fragments of this grim puzzle. Somewhere in the city, a killer was waiting, and Harlow knew he had to find them before the next victim fell.
created_at"2026-02-20T14:26:18.501Z" 2/20/2026, 2:26:18 PM
model"mistralai/mistral-small-3.2-24b-instruct-2506"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency210
moderation_latency(null)
generation_time4459
tokens_prompt46
tokens_completion435
native_tokens_prompt39
native_tokens_completion362
native_tokens_completion_images(null)
native_tokens_reasoning0
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"stop"
usage0.0001125
router(null)
provider_responses
0
endpoint_id"23fd6b91-74d8-45fc-ac00-cf141ec7f4a5"
id"f2dfa261d75b48978938af2fd238cf21"
is_byokfalse
latency210
model_permaslug"mistralai/mistral-small-3.2-24b-instruct-2506"
provider_name"Mistral"
status200
api_type"completions"
id"gen-1771597578-dZseYCqMsLl3aTWKzTKq"
upstream_id"f2dfa261d75b48978938af2fd238cf21"
total_cost0.0001125
cache_discount(null)
upstream_inference_cost0
provider_name"Mistral"

Evaluation details

Result Evaluator Details Meta Data
26.82% Matches word count n/a
neededCleanfalse
sentences15
wordCounts
017
117
219
318
418
517
619
717
820
916
1018
1117
1218
1319
1421