Run: 2026-03-18-01KM08R5VDF43N88H0QCGEX5XD

Run Details

Duration:
25.1s
Cost:
$0.002136
Provider:
Mistral

Evaluation summary

Score Evaluator
Details Link
84.26% 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 as the guests arrived at the grand mansion for an evening of merriment and intrigue. Hostess Lady Eleanor warmly greeted everyone who arrived despite the storm's furious howls outside rattling every single window pane loudly. The butler swiftly served wine and sherry to each guest as distant thunder rumbled ominously outside the mansion loudly and darkly. Forever constant idle conjectures and whispered gossip floated aimlessly through candlelit rooms where nervous guests clinked glasses under locked doors. In the grand dining hall the crystal chandelier flickered violently when a bloodcurdling scream echoed through the mansion’s ancient halls.
created_at"2026-03-18T10:44:34.295Z" 3/18/2026, 10:44:34 AM
model"mistralai/mistral-small-2603" 1/1/2603, 12:00:00 AM
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency396
moderation_latency(null)
generation_time25073
tokens_prompt46
tokens_completion3027
native_tokens_prompt51
native_tokens_completion3547
native_tokens_completion_images(null)
native_tokens_reasoning2850
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"
usage0.00213585
router(null)
provider_responses
0
endpoint_id"f5ed6283-4e17-457d-98cd-2ec0c318171d"
id"e9eb75c90230432c8aaff28bf5d9bacb"
is_byokfalse
latency381
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-1773830674-TDqu1kvTQhfWDXG0sbar"
upstream_id"e9eb75c90230432c8aaff28bf5d9bacb"
total_cost0.00213585
cache_discount(null)
upstream_inference_cost0
provider_name"Mistral"

Evaluation details

Result Evaluator Details Meta Data
84.26% Matches word count n/a
neededCleanfalse
sentences5
wordCounts
019
120
221
320
420