Run: 2026-03-18-01KM0ACWZTT507ZEK3CVHJYSW4

Run Details

Duration:
1.8s
Cost:
$0.000108
Provider:
Mistral

Evaluation summary

Score Evaluator
Details Link
13.01% 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 storm raged outside Blackwood Manor, its thunderous growls echoing through the ancient halls like a warning. Rain lashed violently against the stained-glass windows, casting eerie red and blue hues across the grand foyer’s marble floor. A single candelabra flickered in the draft, its dim light illuminating the shadowy portraits lining the walls. A faint scent of aged wood and something metallic lingered in the air, unsettling the guests already gathered. The butler, impeccably dressed, stood frozen near the oak door, his knuckles white around a silver tray. Murmurs of unease rippled through the company as whispers of a figure seen in the west wing spread. The grandfather clock struck midnight, its chime resonating with an ominous finality no one could ignore.
created_at"2026-03-18T11:13:21.928Z" 3/18/2026, 11:13:21 AM
model"mistralai/mistral-small-2603" 1/1/2603, 12:00:00 AM
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency399
moderation_latency(null)
generation_time1749
tokens_prompt46
tokens_completion194
native_tokens_prompt51
native_tokens_completion167
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"
usage0.00010785
router(null)
provider_responses
0
endpoint_id"f5ed6283-4e17-457d-98cd-2ec0c318171d"
id"c4a4017d0cec455f8b7114a0f428f11a"
is_byokfalse
latency399
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-1773832401-8tRSqccWHaxesj4QBRHk"
upstream_id"c4a4017d0cec455f8b7114a0f428f11a"
total_cost0.00010785
cache_discount(null)
upstream_inference_cost0
provider_name"Mistral"

Evaluation details

Result Evaluator Details Meta Data
13.01% Matches word count n/a
neededCleanfalse
sentences7
wordCounts
017
119
217
318
417
518
616