Run: 2026-02-20-01KHXQBNGJHX308J3G92PKH4XD

Run Details

Duration:
4.7s
Cost:
$0.000576
Provider:
Mistral

Evaluation summary

Score Evaluator
Details Link
63.03% 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 grand estate loomed under storm clouds, its gilded gates creaking ominously as thunder rolled across the desolate moors. Detective Harlow adjusted his damp trench coat, eyes narrowing at the flickering candlelight spilling from shattered second-floor windows. A bloodstained glove lay crumpled beside the marble steps, its leather still warm despite the biting wind whipping through skeletal trees. Inside, the air smelled of lavender and gunpowder, mingling with the metallic tang of something far more sinister lurking unseen. Portraits of the deceased family watched silently as Harlow’s boots echoed against the black-and-white checkerboard tiles of the foyer. The butler’s hands trembled slightly while offering a silver tray bearing a single, half-empty glass of bourbon and ice. A woman’s stifled sob came from the library, where shattered crystal glittered like stars beneath the overturned mahogany desk. Harlow’s fingers brushed the cold barrel of his revolver, sensing the weight of secrets pressing down like the estate’s crumbling stone walls. The grandfather clock struck midnight just as a shadow darted past the hallway, its edges blurring into the flickering gaslight’s eerie glow. Somewhere above, a floorboard groaned under unseen footsteps, each creak a whisper of the violence that had unfolded hours before.
created_at"2026-02-20T14:30:46.046Z" 2/20/2026, 2:30:46 PM
model"mistralai/mistral-medium-3.1" 3/1/2001, 12:00:00 AM
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency245
moderation_latency(null)
generation_time4584
tokens_prompt46
tokens_completion354
native_tokens_prompt39
native_tokens_completion280
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"
usage0.0005756
router(null)
provider_responses
0
endpoint_id"13c5002b-8c5b-490c-8a5f-52ec0242804f"
id"6b15ce460c9743489e94c8e331259d84"
is_byokfalse
latency245
model_permaslug"mistralai/mistral-medium-3.1" 3/1/2001, 12:00:00 AM
provider_name"Mistral"
status200
api_type"completions"
id"gen-1771597846-knPFq2BAnongt39mctZO"
upstream_id"6b15ce460c9743489e94c8e331259d84"
total_cost0.0005756
cache_discount(null)
upstream_inference_cost0
provider_name"Mistral"

Evaluation details

Result Evaluator Details Meta Data
63.03% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
019
119
221
320
421
520
619
722
822
920