Run: 2026-11-11-01M755CCCH5GAC580F9F3CNHP6

Run Details

Duration:
2.8s
Cost:
$0.000711
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
The lighthouse keeper was found dead at dawn, his lantern still burning beside the cold, overturned chair on the cliff. The inspector arrived by boat through thick fog, carrying photographs, notebooks, and questions nobody wanted to answer for the town. Every window in the village stayed shuttered while gulls circled silently above roofs slick with rain and gathering darkness tonight. Somewhere inside the keeper cottage, a clock ticked loudly, marking time for secrets nobody dared confess aloud before the storm. The inspector pushed open the door and whispered the victim name, hoping the silence would finally break before nightfall came.
created_at"2026-11-11T11:20:08.855Z" 11/11/2026, 11:20:08 AM
model"meta/muse-ember-20261109"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2006
moderation_latency(null)
generation_time2752
tokens_prompt46
tokens_completion197
native_tokens_prompt43
native_tokens_completion1413
native_tokens_completion_images0
native_tokens_reasoning1261
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"
usage0.0007108
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.22.2; linux; x64))"
http_referer(null)
request_id"req-1794396008-Wtd3iMXfD24VuC5Uu3v4"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1794396008-VPTq24Sl47NtcRhsdDrm"
upstream_id"resp_6af44f6951ed84e969424e82"
provider_responses
0
endpoint_id"ea8469c2-ddf8-4985-8cf2-f5dc7e63e14c"
id"resp_6af44f6951ed84e969424e82"
is_byokfalse
latency1290
model_permaslug"meta/muse-ember-20261109"
provider_name"Meta"
status200
total_cost0.0007108
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
sentences5
wordCounts
020
120
220
320
420