Run: 2026-02-20-01KHXQH1EVTA87HS122FMD39MJ

Run Details

Duration:
4.9s
Cost:
$0.000354
Provider:
Mistral

Evaluation summary

Score Evaluator
Details Link
0.01% 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 cobblestones, turning the gaslight’s glow into a hazy, golden smear. Detective Harlow adjusted his hat, watching the water pool around his polished, black leather shoes. A scream sliced through the night, sharp as the knife now lodged in the victim’s chest. The body sprawled across the alley, limbs twisted like a broken marionette’s forgotten dance. Blood mixed with rainwater, swirling into the gutter where the city’s secrets always drained away. Harlow knelt, ignoring the cold seeping through his trousers, and studied the victim’s pale, lifeless face. A single playing card—ace of spades—clutched in the dead man’s stiff, unyielding fingers. The killer had left no footprints, only the echo of laughter in the storm’s relentless hiss. Harlow’s breath fogged in the air as he traced the card’s edge with a gloved hand. Behind him, the precinct’s door creaked open, spilling yellow light onto the grim, wet scene.
created_at"2026-02-20T14:33:42.121Z" 2/20/2026, 2:33:42 PM
model"mistralai/mistral-large-2512" 1/1/2512, 12:00:00 AM
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency414
moderation_latency(null)
generation_time4838
tokens_prompt46
tokens_completion262
native_tokens_prompt39
native_tokens_completion223
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"
usage0.000354
router(null)
provider_responses
0
endpoint_id"fa718841-07ea-4b7e-b8a3-6069545c7e6a"
id"a0d9fad4c39f4d87a567ca778605d14b"
is_byokfalse
latency414
model_permaslug"mistralai/mistral-large-2512" 1/1/2512, 12:00:00 AM
provider_name"Mistral"
status200
api_type"completions"
id"gen-1771598022-4dw1fdNHVLNLNbMJlpCT"
upstream_id"a0d9fad4c39f4d87a567ca778605d14b"
total_cost0.000354
cache_discount(null)
upstream_inference_cost0
provider_name"Mistral"

Evaluation details

Result Evaluator Details Meta Data
0.01% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
015
115
216
314
415
516
615
716
816
915