Run: 2026-11-11-01M7567ER4205M2XZYFWEKPY2M

Run Details

Duration:
6.6s
Cost:
$0.002138
Provider:
Meta

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
Rain hammered the windows of Blackwood Manor throughout the entire dark and stormy night without mercy or warning at all. We discovered Lord Edmund Blackwood dead inside his locked study just after midnight last Tuesday morning before anyone else awoke. His lifeless body slumped over the mahogany desk beside cold coffee and an unfinished letter addressed mysteriously to me personally. The letter warned that traitors surrounded him closely and demanded immediate secret meeting tonight at nine near the old tower. Police sealed every door and questioned every servant while searching desperately for clues hidden inside the library before dawn arrived. I alone noticed muddy footprints leading toward the garden gate where heavy fog swallowed all tracks beyond recognition that night. Whoever killed him understood every secret corridor and escaped before sunrise without leaving a single trace behind for the police.
created_at"2026-11-11T11:34:56.01Z" 11/11/2026, 11:34:56 AM
model"meta/muse-ember-20261109"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1575
moderation_latency(null)
generation_time6547
tokens_prompt46
tokens_completion351
native_tokens_prompt43
native_tokens_completion4267
native_tokens_completion_images0
native_tokens_reasoning4002
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"completed"
service_tier"default"
usage0.0021378
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.22.2; linux; x64))"
http_referer(null)
request_id"req-1794396896-jSUH3r7ytWBVxR8mXuz6"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1794396896-sQarEKS4QYK2sOCsIsXs"
upstream_id"resp_6af452e0ac550d9023dd4713"
provider_responses
0
endpoint_id"ea8469c2-ddf8-4985-8cf2-f5dc7e63e14c"
id"resp_6af452e0ac550d9023dd4713"
is_byokfalse
latency514
model_permaslug"meta/muse-ember-20261109"
provider_name"Meta"
status200
total_cost0.0021378
cache_discount(null)
upstream_inference_cost0
provider_name"Meta"
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
sentences7
wordCounts
020
120
220
320
420
520
620