Run: 2026-02-20-01KHY8AJZB5D5PEZHRA58BAS64

Run Details

Duration:
1.9s
Cost:
$0.000053
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 old Victorian mansion loomed under the moon’s pale, eerie glow as rain tapped relentlessly. A single candle flickered in the grand foyer, casting long shadows where no one dared tread. Detective Mara Voss adjusted her coat, her breath fogging the cold, damp evening air outside. The butler’s stiff posture suggested he knew more than he was willing to confess. Footsteps echoed down the marble hallway, though no one else seemed to be present. A bloodstained handkerchief lay crumpled near the front door, its edges still damp. The victim’s name, *Eleanor Whitmore*, was scrawled in ink on a shattered teacup’s rim. Mara’s gloved fingers brushed the glass, leaving faint prints where none should remain. The housekeeper’s trembling voice whispered warnings about the late Mrs. Whitmore’s enemies. A locked study door stood ajar, its brass handle cold and uninviting to curious hands. The scent of lavender and something metallic clung to the air like a guilty secret. Mara’s pulse quickened as she spotted a single black rose on the mantelpiece. The rose’s petals were still fresh, though no gardener had visited in days. A faint scent of gunpowder lingered near the fireplace, though no weapon was in sight. The clock struck midnight, its chime echoing like a funeral knell through the empty halls. Mara’s flashlight beam cut through the darkness, revealing a figure slumped in the library chair.
created_at"2026-02-20T19:27:16.471Z" 2/20/2026, 7:27:16 PM
model"mistralai/ministral-8b-2512"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency287
moderation_latency(null)
generation_time1527
tokens_prompt46
tokens_completion384
native_tokens_prompt39
native_tokens_completion314
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"
usage0.00005295
router(null)
provider_responses
0
endpoint_id"c85d26e1-1e0c-449b-9775-2afce7ae510b"
id"64416d645e9f42c983a13feea81c2d76"
is_byokfalse
latency287
model_permaslug"mistralai/ministral-8b-2512"
provider_name"Mistral"
status200
api_type"completions"
id"gen-1771615636-VwPevKyyC9LUXlPglrRP"
upstream_id"64416d645e9f42c983a13feea81c2d76"
total_cost0.00005295
cache_discount(null)
upstream_inference_cost0
provider_name"Mistral"

Evaluation details

Result Evaluator Details Meta Data
0.00% Matches word count n/a
neededCleanfalse
sentences16
wordCounts
015
116
215
314
414
513
614
713
812
915
1015
1113
1213
1315
1415
1515