Run: 2026-02-20-01KHY9K24AGBHGFMQHHHCX7G5W

Run Details

Duration:
2.7s
Cost:
$0.000062
Provider:
Mistral

Evaluation summary

Score Evaluator
Details Link
0.00% 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 old Victorian’s peeling paint as dawn broke. A single candle flickered on the hall table, casting long, wavering shadows. Detective Mara Voss adjusted her coat, her breath fogging in the cold air. The front door stood ajar, its hinges groaning softly in the morning breeze. A bloodstained letter opener lay near the threshold, its blade still glinting. Footsteps echoed faintly from upstairs, though no one else remained inside. The butler’s stiff posture suggested he’d seen something far too disturbing. A half-empty glass of whiskey sat on the marble mantel, untouched. Mara’s gloved fingers tightened around her revolver, her pulse racing wildly. The victim’s body lay sprawled across the grand piano, fingers curled tight. A single playing card—ace of spades—rested on the victim’s chest. The housekeeper’s trembling voice whispered, *"He didn’t do it, Detective."* Mara’s sharp gaze swept the room, searching for hidden, guilty secrets. The grandfather clock’s pendulum swung silently, marking time like a judge. A scent of lavender and gunpowder lingered, clinging to the air. The victim’s pocket watch had stopped at exactly three-thirty in the morning. Mara knelt beside the body, her mind racing through possible motives. The butler’s nervous laugh felt forced, his hands shaking uncontrollably. A shadow moved in the hallway, though no one else was present. Mara’s instincts screamed danger, her body tensing for an unseen threat. The house felt alive with secrets, each corner whispering of betrayal. A key turned in the lock, though no one had entered the room. Mara spun around, her revolver raised, ready to face whatever stood there.
created_at"2026-02-20T19:49:22.708Z" 2/20/2026, 7:49:22 PM
model"mistralai/ministral-8b-2512"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency301
moderation_latency(null)
generation_time2412
tokens_prompt46
tokens_completion448
native_tokens_prompt39
native_tokens_completion375
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"
usage0.0000621
router(null)
provider_responses
0
endpoint_id"c85d26e1-1e0c-449b-9775-2afce7ae510b"
id"84df44e79d2d4ebca8d8be3110ddab7e"
is_byokfalse
latency301
model_permaslug"mistralai/ministral-8b-2512"
provider_name"Mistral"
status200
api_type"completions"
id"gen-1771616962-ftQAc4dB3rkVkPwn51LM"
upstream_id"84df44e79d2d4ebca8d8be3110ddab7e"
total_cost0.0000621
cache_discount(null)
upstream_inference_cost0
provider_name"Mistral"

Evaluation details

Result Evaluator Details Meta Data
0.00% Matches word count n/a
neededCleanfalse
sentences23
wordCounts
012
112
213
313
412
511
611
712
811
912
1012
1110
1211
1311
1411
1513
1611
1710
1812
1911
2011
2113
2212