Run: 2026-02-20-01KHYB5D0Y9227GCCYC79J2C5X

Run Details

Duration:
1.7s
Cost:
$0.000050
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 old Victorian mansion loomed under the moon’s pale, watchful gaze as rain tapped rhythmically. A single candle flickered weakly on the grand staircase, casting eerie shadows along the polished wood. The butler stood motionless near the front door, his expression unreadable beneath the dim overhead light. A faint whisper echoed through the empty hallway, though no one remained to hear it clearly. The victim’s body lay sprawled across the marble floor, a single silver dagger still embedded. Detective Holloway adjusted his worn coat as he stepped inside, his boots splashing in puddles. The housekeeper’s trembling hands clutched a teacup, her face drained of all previous color. A locked study door stood ajar, its contents hidden behind a curtain of dusty silence. The scent of lavender and something metallic filled the air, clinging to the walls. A child’s laughter drifted from upstairs, though no children had been seen in years. The detective’s sharp eyes scanned the room, searching for clues no one else could notice. A single playing card lay face-up near the victim’s outstretched hand, its edges frayed. The butler’s voice cracked as he whispered, *"She never should have trusted him, sir."* A shadow moved at the window, though no breeze stirred the heavy curtains outside. The detective’s pulse quickened as he realized the truth might be far darker than expected.
created_at"2026-02-20T20:16:52.265Z" 2/20/2026, 8:16:52 PM
model"mistralai/ministral-8b-2512"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency222
moderation_latency(null)
generation_time1239
tokens_prompt46
tokens_completion377
native_tokens_prompt39
native_tokens_completion292
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"
usage0.00004965
router(null)
provider_responses
0
endpoint_id"c85d26e1-1e0c-449b-9775-2afce7ae510b"
id"bb71a6f0f2fa45fe8af1a671d1dd8829"
is_byokfalse
latency222
model_permaslug"mistralai/ministral-8b-2512"
provider_name"Mistral"
status200
api_type"completions"
id"gen-1771618612-2TYp9hJrvMecQ3tsYcCV"
upstream_id"bb71a6f0f2fa45fe8af1a671d1dd8829"
total_cost0.00004965
cache_discount(null)
upstream_inference_cost0
provider_name"Mistral"

Evaluation details

Result Evaluator Details Meta Data
0.01% Matches word count n/a
neededCleanfalse
sentences15
wordCounts
015
116
216
316
415
515
614
715
814
914
1015
1115
1214
1314
1415