Run: 2026-03-18-01KM09TV3T5Y6DRN11Z1MXFD6S

Run Details

Duration:
12.4s
Cost:
$0.001241
Provider:
Mistral

Evaluation summary

Score Evaluator
Details Link
75.16% Matches word count (details)

Model input

User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 10 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
Therain fell heavily on the cobblestone streets of London. A dim lantern flickered in the window of the old mansion. Detective Alistair Graves arrived just after midnight with his umbrella. The butler greeted him solemnly at the heavy oak door. "The master has been found in his study," the butler said. Graves adjusted his coat and stepped into the dimly lit room. A single lamp cast eerie shadows across the mahogany desk. Blood pooled darkly on the Persian carpet beneath a lifeless body. The victim clutched a torn photograph in his stiffened fingers. Graves knelt carefully, examining the scene for any clues. The mansion loomed over the countryside, its secrets hidden in shadows. A storm raged outside, drowning out any chance of escape. Every creak of the floorboards made Graves' instincts tingle with dread. Someone had been here recently; the air smelled faintly of perfume. The torn photo revealed a woman's haunted expression amidst the tears. The butler's hands trembled slightly as he closed the study door behind him. Graves detected a faint almond scent, bitter and unsettling in the air.
created_at"2026-03-18T11:03:30.182Z" 3/18/2026, 11:03:30 AM
model"mistralai/mistral-small-2603" 1/1/2603, 12:00:00 AM
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency366
moderation_latency(null)
generation_time12318
tokens_prompt46
tokens_completion2122
native_tokens_prompt51
native_tokens_completion2055
native_tokens_completion_images(null)
native_tokens_reasoning1833
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"
usage0.00124065
router(null)
provider_responses
0
endpoint_id"f5ed6283-4e17-457d-98cd-2ec0c318171d"
id"939078c1e1e5410da87eb63240724d0e"
is_byokfalse
latency361
model_permaslug"mistralai/mistral-small-2603" 1/1/2603, 12:00:00 AM
provider_name"Mistral"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.0; linux; x64))"
http_referer(null)
api_type"completions"
id"gen-1773831810-gqklxtzGTxAocBHnAJHz"
upstream_id"939078c1e1e5410da87eb63240724d0e"
total_cost0.00124065
cache_discount(null)
upstream_inference_cost0
provider_name"Mistral"

Evaluation details

Result Evaluator Details Meta Data
75.16% Matches word count n/a
neededCleanfalse
sentences17
wordCounts
09
111
210
310
411
511
610
711
810
99
1011
1110
1211
1311
1411
1513
1612