Run: 2026-10-06-01M48W42JJZ5S7K5DD7WBAE7XE

Run Details

Duration:
6.6s
Cost:
$0.000285
Provider:
Mistral

Evaluation summary

Score Evaluator
Details Link
81.86% 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
The old lighthouse keeper found the body at dawn's first light. Blood pooled dark and still upon the ancient stone floor. No one else had visited this tower in three days. Sheriff Mara walked slowly, counting each step with care. The victim wore a captain's coat, expensive and unfamiliar. A single white feather lay near the cold dead hand. Rain lashed the windows, hiding the world outside completely. Mara knelt down, searching for clues in the silence. The clock had stopped at exactly midnight, she noticed. Someone wanted this death to happen at that hour.
created_at"2026-10-06T15:08:11.736Z" 10/6/2026, 3:08:11 PM
model"mistralai/mistral-large-4-0-20261006"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency644
moderation_latency(null)
generation_time6595
tokens_prompt46
tokens_completion141
native_tokens_prompt50
native_tokens_completion120
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)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"stop"
service_tier"default"
usage0.0002848
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1791299291-oIxvmCOT5R7coIEFMZfy"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1791299291-E5gK2lO9ubMUvWfXaWix"
upstream_id"301901af47884553bcc0dc51e34d72cb"
provider_responses
0
endpoint_id"540e63db-cc7c-4556-bb67-d449579bcf1a"
id"301901af47884553bcc0dc51e34d72cb"
is_byokfalse
latency644
model_permaslug"mistralai/mistral-large-4-0-20261006"
provider_name"Mistral"
status200
total_cost0.0002848
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
81.86% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
011
110
210
39
49
510
69
79
89
99