Run: 2026-11-11-01M755NH400F2ZF8X1J9YQXMCC

Run Details

Model:
Muse Ember (Reasoning, Max)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
6.0s
Cost:
$0.001864
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 Mercy Hospital windows all night while orderlies discovered Doctor Vance motionless inside locked examination room three before dawn. Detective Clara Hayes arrived at sunrise clutching coffee and evidence bags while frightened nurses whispered theories about the murderer nearby. A silver key rested beside his hand, tarnished, cold, and recently polished by someone desperate to erase lingering fingerprints completely. Clara lifted the tarnished key carefully, remembering the locked cabinet downstairs where Doctor Vance stored every sensitive patient file safely. Somewhere above them, a heart monitor beeped steadily, indifferent, while Clara understood the killer still walked these quiet corridors tonight.
created_at"2026-11-11T11:25:08.614Z" 11/11/2026, 11:25:08 AM
model"meta/muse-ember-20261109"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2135
moderation_latency(null)
generation_time5985
tokens_prompt46
tokens_completion275
native_tokens_prompt43
native_tokens_completion3720
native_tokens_completion_images0
native_tokens_reasoning3512
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"
usage0.0018643
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.22.2; linux; x64))"
http_referer(null)
request_id"req-1794396308-1lH9PdC7yGDVZIfYvkdj"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1794396308-tEaFisrKFBJd7qvSGYKO"
upstream_id"resp_6af45095b31aaa8510a94a48"
provider_responses
0
endpoint_id"ea8469c2-ddf8-4985-8cf2-f5dc7e63e14c"
id"resp_6af45095b31aaa8510a94a48"
is_byokfalse
latency1183
model_permaslug"meta/muse-ember-20261109"
provider_name"Meta"
status200
total_cost0.0018643
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