Run: 2026-02-20-01KHYB47DX1TRSZ4FT17WYG387

Run Details

Duration:
1.2s
Cost:
$0.000029
Provider:
Mistral

Evaluation summary

Score Evaluator
Details Link
1.51% 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 pattered against the window, casting shadows long and dark upon the crumbling mansion’s walls. A single candle flickered weakly, casting eerie light on the dusty floor where footprints led nowhere. The clock struck midnight, its chime echoing hollowly through the silent, suffocating air. A shadow moved swiftly past the open door, leaving no trace behind in the dimly lit hallway. Whispers slithered through the cracks, though no one dared to speak aloud in fear of what might hear. The air smelled of decay and something faintly metallic, clinging to the damp stone walls. A single key turned in the lock with a creak that seemed to scream its own secrets. The door swung open, revealing a figure cloaked in black, standing motionless in the moonlight’s pale glow. No one had been seen entering or leaving for days, yet here they stood, unnoticed and unseen. The house held its breath as the figure stepped inside, leaving behind only silence and dread. A faint, unnatural hum filled the air, like a heartbeat too fast to be human’s own. The last thing anyone saw before the lights went out was the figure’s cold, unblinking eyes.
created_at"2026-02-20T20:16:13.772Z" 2/20/2026, 8:16:13 PM
model"mistralai/ministral-3b-2512"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency282
moderation_latency(null)
generation_time892
tokens_prompt46
tokens_completion308
native_tokens_prompt39
native_tokens_completion251
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"
usage0.000029
router(null)
provider_responses
0
endpoint_id"b9f6828f-aef9-498a-91f5-6816fbf72420"
id"8f1f838b282a44d88945cd9f66955326"
is_byokfalse
latency282
model_permaslug"mistralai/ministral-3b-2512"
provider_name"Mistral"
status200
api_type"completions"
id"gen-1771618573-H1xlx17PjhV24DUe3y9G"
upstream_id"8f1f838b282a44d88945cd9f66955326"
total_cost0.000029
cache_discount(null)
upstream_inference_cost0
provider_name"Mistral"

Evaluation details

Result Evaluator Details Meta Data
1.51% Matches word count n/a
neededCleanfalse
sentences12
wordCounts
016
116
213
317
418
515
617
717
817
916
1016
1116