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Run: 2026-11-11-01M755SHSB3AZ8PCDG5G3P4DM4
Run Details
Model:
Muse Ember (Reasoning, Max)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
5.1s
Cost:
$0.001083
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
Messages
Meta
AI
The rain hammered against the cottage windows while Inspector Cole examined the body lying silent upon cold dark kitchen floorboards. Martha Lane sat frozen beside the telephone, her trembling hands clutching the receiver as though waiting for one final voice. The victim, Edward Hart, was discovered at dawn by his housekeeper, who swore she heard whispering upstairs sometime past midnight. Dr. Ellis knelt nearby, studying the wound carefully while noting the faint smell of almonds drifting from the victim's mouth. Outside, reporters gathered beneath umbrellas, hungry for details while constables searched the garden path for footprints, weapons, and discarded clues. When Cole noticed the locked study door was untouched inside, he realized the murderer never intended to escape at all.
created_at
"2026-11-11T11:27:20.369Z"
11/11/2026, 11:27:20 AM
model
"meta/muse-ember-20261109"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
3312
moderation_latency
(null)
generation_time
5085
tokens_prompt
46
tokens_completion
239
native_tokens_prompt
43
native_tokens_completion
2157
native_tokens_completion_images
0
native_tokens_reasoning
1967
native_tokens_cached
0
num_media_prompt
(null)
num_input_audio_prompt
(null)
num_media_completion
0
num_search_results
(null)
num_fetches
(null)
web_search_engine
(null)
origin
"https://ncbench.com/"
is_byok
false
finish_reason
"stop"
native_finish_reason
"completed"
service_tier
"default"
usage
0.0010828
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.22.2; linux; x64))"
http_referer
(null)
request_id
"req-1794396440-Hm9hrTlb6isdlzkehkwz"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1794396440-rtAgEEUZqqC6qYCmqhbs"
upstream_id
"resp_6af4511aaab1b8b651304811"
provider_responses
0
endpoint_id
"ea8469c2-ddf8-4985-8cf2-f5dc7e63e14c"
id
"resp_6af4511aaab1b8b651304811"
is_byok
false
latency
2723
model_permaslug
"meta/muse-ember-20261109"
provider_name
"Meta"
status
200
total_cost
0.0010828
cache_discount
(null)
upstream_inference_cost
0
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
neededClean
false
sentences
6
wordCounts
0
20
1
20
2
20
3
20
4
20
5
20