Run: 2026-03-18-01KM09E5BNG3AQ8M41Y6VWXCPN

Run Details

Duration:
35.1s
Cost:
$0.002807
Provider:
Mistral

Evaluation summary

Score Evaluator
Details Link
100.00% 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 rain lashed fiercely against the windows of the ancient, isolated mansion on that dark and bitterly cold December night. A lone figure approached the grand oak doors, clutching a damp coat in trembling hands under the flickering streetlamp outside. Inside, muffled conversations and clinking glasses hinted at a lavish party already in full swing despite the late hour's gloom. Detective Hartwell paused, removing his hat to study the mansion’s elaborately carved façade bathed in dim light before stepping forward. The butler’s face was unreadable as he ushered Hartwell into the smoky foyer, redolent with aged whiskey and expensive perfume. Whispers ceased abruptly as Hartwell’s sharp gaze swept across room, lingering on the host’s unusually pale complexion and fraught demeanor.
created_at"2026-03-18T10:56:34.708Z" 3/18/2026, 10:56:34 AM
model"mistralai/mistral-small-2603" 1/1/2603, 12:00:00 AM
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency570
moderation_latency(null)
generation_time34952
tokens_prompt46
tokens_completion4435
native_tokens_prompt51
native_tokens_completion4666
native_tokens_completion_images(null)
native_tokens_reasoning4234
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"
usage0.00280725
router(null)
provider_responses
0
endpoint_id"f5ed6283-4e17-457d-98cd-2ec0c318171d"
id"f027348124564e4bb6b8c223594949bd"
is_byokfalse
latency552
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-1773831394-BrVijN1g7DPWwHoHnqG3"
upstream_id"f027348124564e4bb6b8c223594949bd"
total_cost0.00280725
cache_discount(null)
upstream_inference_cost0
provider_name"Mistral"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences6
wordCounts
020
120
220
320
420
520