Run: 2026-10-07-01M4AV1SH1KAKE74E47GZ0T823

Run Details

Duration:
41.9s
Cost:
$0.010461
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 autumn wind howled through the ancient oak trees surrounding the Blackwood Manor as darkness fell completely upon the village. Inspector Mara stood alone on the winding cobblestone path, her long black coat flapping wildly in the freezing September storm. She had received the urgent telegram three hours ago warning her about the murder discovered in the dark east wing. The victim was Lord Blackwood himself, found slumped over his mahogany desk with blood staining the expensive white Persian rug. A single candelabra lay shattered nearby, its crystal pieces scattered across the hardwood floor like diamonds on expensive black velvet. Mara knelt beside the cold body, her gloved hand hovering over the pale wrist checking desperately for any faint pulse. Nothing, only the silence of the dead and the ticking clock on the mantelpiece above the large cold stone fireplace. She noticed the peculiar symbol carved into the desk surface, a crimson spiral that seemed to pulse with hidden meaning. Three suspects waited in the library, their dark eyes avoiding hers while the rain lashed against the tall Gothic windows. The game had begun, and only one of them could be lying about their whereabouts during the storm last night.
created_at"2026-10-07T09:27:57.225Z" 10/7/2026, 9:27:57 AM
model"mistralai/mistral-large-4-0-20261006"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1939
moderation_latency(null)
generation_time41835
tokens_prompt46
tokens_completion3737
native_tokens_prompt38
native_tokens_completion4993
native_tokens_completion_images(null)
native_tokens_reasoning3429
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"stop"
service_tier"default"
usage0.01046121
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1791365277-9w9H3gcwMt99mstR2HGG"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1791365277-pTYS49uwWV6JD6q3G5GY"
upstream_id"87d17e2016814f179ba228fd338f90b7"
provider_responses
0
endpoint_id"19b3b5d7-23f6-4b63-8109-64a6cc37d996"
id"87d17e2016814f179ba228fd338f90b7"
is_byokfalse
latency574
model_permaslug"mistralai/mistral-large-4-0-20261006"
provider_name"Mistral"
status200
total_cost0.01046121
cache_discount(null)
upstream_inference_cost0
provider_name"Mistral"
response_cache_source_id(null)
data_region"global"
workspace_id"97e315e5-d303-487d-83c1-83180e8a13d4"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
020
120
220
320
420
520
620
720
820
920