Run: 2026-10-07-01M4ATEH5PVP6RDV4FQHKBCEXN

Run Details

Duration:
26.4s
Cost:
$0.005086
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 chandelier cast fractured light across the dusty ballroom where the cold body lay sprawled beneath that old grand piano. Detective Miller stepped carefully over the velvet rope and knelt beside the victim whose eyes stared upward without any recognition. Three guests stood frozen in the doorway while rain dripped from their expensive coats onto the polished marble floor tiles. A silver letter opener glinted on the carpet near the dead man's outstretched hand which pointed toward the dark corner. The butler adjusted his white gloves and whispered that someone had certainly moved the evidence before the police arrived yesterday. Outside the tall windows, thunder rolled across the dark hills as lightning illuminated the garden statues watching that terrible scene.
created_at"2026-10-07T09:17:26.08Z" 10/7/2026, 9:17:26 AM
model"mistralai/mistral-large-4-0-20261006"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency568
moderation_latency(null)
generation_time26394
tokens_prompt46
tokens_completion1885
native_tokens_prompt38
native_tokens_completion2421
native_tokens_completion_images(null)
native_tokens_reasoning1691
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"
usage0.00508573
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1791364646-Majlb3JLvNc23F57QBWn"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1791364646-0ful2htKDMFS0HQry6Hs"
upstream_id"e08413b4caa74c29b47f9c4d502837d7"
provider_responses
0
endpoint_id"19b3b5d7-23f6-4b63-8109-64a6cc37d996"
id"e08413b4caa74c29b47f9c4d502837d7"
is_byokfalse
latency551
model_permaslug"mistralai/mistral-large-4-0-20261006"
provider_name"Mistral"
status200
total_cost0.00508573
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
sentences6
wordCounts
020
120
220
320
420
520