Run: 2026-02-20-01KHYAFX0S85N6D4Q9M1FD6RQ9

Run Details

Duration:
4.0s
Cost:
$0.000093
Provider:
Mistral

Evaluation summary

Score Evaluator
Details Link
3.32% 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 windowpanes as Inspector Harlow sipped his cold, bitter coffee by lamplight. A single envelope lay on the desk, its wax seal broken, bearing only a name scrawled in ink. The victim’s last words were whispered into the night, though no one had heard them until now. Outside, the clock tower struck midnight, its chime echoing through the empty, fog-choked streets below. Detective Mara Voss traced the smudged fingerprints on the glass, her breath fogging the surface slightly. The body would be found at dawn, but the killer had already vanished into the labyrinth of alleys. A child’s laughter drifted from a distant courtyard, too cheerful for such a grim discovery awaiting them. The case file was thin, yet every detail hinted at a web of deceit far deeper than expected. Harlow’s partner, a retired sergeant with a limp, shuffled in with a photograph of the crime scene. The victim’s face was frozen in an expression of terror, eyes wide as if seeing something unspeakable. A half-smoked cigarette butt glowed in the ashtray, its ash untouched by the storm’s relentless wind. The police station’s creaking floorboards groaned underfoot, each step carrying them closer to the truth. Someone had locked the front door from the inside, leaving no trace of how they’d escaped afterward. The first witness, a barkeep with bloodshot eyes, claimed he’d seen nothing unusual that night. Yet his hands trembled as he described the stranger who’d lingered too long by the victim’s table. A pocket watch stopped at 11:47, its chain snapped, lying beside the body like a silent accusation. The rain slowed to a drizzle, as if the sky itself hesitated before revealing more secrets. Mara’s flashlight flickered, casting long shadows that seemed to twist into shapes of past betrayals. The killer had left no footprints, no voice, only a trail of questions leading into the unknown abyss.
created_at"2026-02-20T20:05:08.337Z" 2/20/2026, 8:05:08 PM
model"mistralai/ministral-14b-2512"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency197
moderation_latency(null)
generation_time3141
tokens_prompt46
tokens_completion517
native_tokens_prompt39
native_tokens_completion425
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"
usage0.0000928
router(null)
provider_responses
0
endpoint_id"0b53717b-9af5-4de3-80af-ebedd2adf981"
id"3ed5da5056d6410eb2da95eb3cb0e107"
is_byokfalse
latency197
model_permaslug"mistralai/ministral-14b-2512"
provider_name"Mistral"
status200
api_type"completions"
id"gen-1771617908-RGbmeURuIk1j7iMOZM6S"
upstream_id"3ed5da5056d6410eb2da95eb3cb0e107"
total_cost0.0000928
cache_discount(null)
upstream_inference_cost0
provider_name"Mistral"

Evaluation details

Result Evaluator Details Meta Data
3.32% Matches word count n/a
neededCleanfalse
sentences19
wordCounts
016
118
217
316
416
518
617
718
817
917
1017
1115
1217
1315
1417
1517
1616
1715
1818