Run: 2026-02-20-01KHY9MD2ED0DXNS8B9W64R0TQ

Run Details

Duration:
2.2s
Cost:
$0.000058
Provider:
Mistral

Evaluation summary

Score Evaluator
Details Link
3.44% 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 over Hollow Creek. A single rose, blackened at the edges, lay crushed beneath the victim’s stiffened fingers. Detective Mara Voss adjusted her trench coat, her breath fogging the cold autumn morning air. The butler’s rigid posture suggested he’d seen something far worse than this morning’s tea spill. A half-empty brandy glass sat upside down, its amber liquid long since evaporated into the air. The housekeeper’s knitted gloves lay abandoned near the fireplace, their yarn still warm to the touch. A child’s laughter echoed from upstairs, though no one else seemed to hear it. The victim’s pocket watch had stopped at exactly three-fifteen, its hands frozen in time. Mara’s boots crunched over frost-kissed leaves as she stepped closer to the body. The scent of lavender and gunpowder clung to the air, a strange, conflicting combination. A single playing card—ace of spades—slid from the victim’s cold, limp hand. The doorbell chimed sharply, startling Mara from her grim examination of the scene. A stranger in a long black coat stood on the porch, his face obscured by a wide-brimmed hat. His voice was calm, almost amused, as he asked if she’d found what she came for. Mara’s fingers twitched toward her revolver, her instincts screaming at her to be wary. The stranger’s gloved hand extended toward the body, though she’d never seen him before. A gust of wind sent the black rose skittering across the marble floor. Mara’s pulse quickened as she realized the game had only just begun.
created_at"2026-02-20T19:50:06.682Z" 2/20/2026, 7:50:06 PM
model"mistralai/ministral-8b-2512"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency205
moderation_latency(null)
generation_time2003
tokens_prompt46
tokens_completion434
native_tokens_prompt39
native_tokens_completion350
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"
usage0.00005835
router(null)
provider_responses
0
endpoint_id"c85d26e1-1e0c-449b-9775-2afce7ae510b"
id"05e32f0c21354555bcd979a61ff0d779"
is_byokfalse
latency205
model_permaslug"mistralai/ministral-8b-2512"
provider_name"Mistral"
status200
api_type"completions"
id"gen-1771617006-nEorQzdQEYfzbASULLiS"
upstream_id"05e32f0c21354555bcd979a61ff0d779"
total_cost0.00005835
cache_discount(null)
upstream_inference_cost0
provider_name"Mistral"

Evaluation details

Result Evaluator Details Meta Data
3.44% Matches word count n/a
neededCleanfalse
sentences18
wordCounts
015
114
215
315
417
516
614
715
814
914
1014
1113
1219
1316
1414
1514
1613
1712