Run: 2026-02-20-01KHY9JT8PPJEHW9PVW6EZC8W6

Run Details

Duration:
2.8s
Cost:
$0.000076
Provider:
Mistral

Evaluation summary

Score Evaluator
Details Link
4.79% 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 hammered against the old mansion’s leaded windows as Inspector Harlow adjusted his damp coat. A single candle flickered in the grand foyer, casting long shadows over the abandoned silver teapot. Footsteps echoed through the empty halls, though no one else remained inside the decaying estate. The butler’s bloodstained gloves lay crumpled near the threshold, as if hastily discarded in panic. A whisper of perfume lingered in the air, sweet and cloying, like a ghost of the past night’s guests. The locked study door stood ajar, its brass handle still warm to the touch despite the chill. A half-empty glass of brandy sat on the desk, its contents swirled with something darker than liquor. The victim’s journal lay open, the final entry scrawled in frantic, trembling handwriting. *"Someone is here,"* the words seemed to scream, though no one dared speak them aloud. The grandfather clock ticked ominously, each second stretching like a noose around the inspector’s neck. A portrait of the late owner watched silently, his painted eyes following Harlow’s every suspicious movement. The scent of gunpowder hung thick, mingling with the must of forgotten years and betrayal. A single playing card—ace of spades—was tucked beneath the journal, its edges singed black. The inspector’s gloved fingers trembled as he lifted it, the weight of the crime pressing down. Outside, the wind howled like a mournful dirge for the life just snuffed out inside. The mansion’s secrets whispered through the cracks, daring him to uncover the truth before time ran out.
created_at"2026-02-20T19:49:14.659Z" 2/20/2026, 7:49:14 PM
model"mistralai/ministral-14b-2512"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency216
moderation_latency(null)
generation_time2625
tokens_prompt46
tokens_completion424
native_tokens_prompt39
native_tokens_completion342
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"
usage0.0000762
router(null)
provider_responses
0
endpoint_id"0b53717b-9af5-4de3-80af-ebedd2adf981"
id"c4a4113cc2e2400c89ecc5907dd76296"
is_byokfalse
latency216
model_permaslug"mistralai/ministral-14b-2512"
provider_name"Mistral"
status200
api_type"completions"
id"gen-1771616954-MaaRc547d0TWmAKs8MUm"
upstream_id"c4a4113cc2e2400c89ecc5907dd76296"
total_cost0.0000762
cache_discount(null)
upstream_inference_cost0
provider_name"Mistral"

Evaluation details

Result Evaluator Details Meta Data
4.79% Matches word count n/a
neededCleanfalse
sentences16
wordCounts
016
116
215
315
419
517
618
713
815
915
1016
1115
1216
1316
1415
1517