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Run: 2026-07-25-01KYD5FPZXARHF3Q22X6RCJS4R
Run Details
Model:
Muse Spark 1.1 (Reasoning, Medium)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
13.8s
Cost:
$0.010746
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 Blackwood Manor's ancient roof as Detective Ellis arrived, sensing something terribly wrong waited inside tonight for him. Butler Jenkins opened the massive oak door, his hands trembling violently around a silver candlestick holder that dripped wax everywhere. He whispered, 'She's still in the library, sir, exactly as we found her this morning with blood pooling nearby silently. Ellis stepped past him, following bloody footprints across Persian rugs toward heavy velvet curtains drawn tightly shut against afternoon light. Lady Blackwood lay sprawled across her desk, one manicured hand clutching a torn bloodied letter that nobody claimed to recognize. Her eyes stared blankly at the ceiling, reflecting chandelier light that revealed no obvious murder weapon nearby anywhere in sight. Ellis noticed three teacups steaming on the sideboard, suggesting visitors had departed moments before catastrophe struck unexpectedly last night somehow. Then he realized the footprints leading away from the body belonged to someone still hiding inside the house right now.
created_at
"2026-07-25T17:34:37.06Z"
7/25/2026, 5:34:37 PM
model
"meta/muse-spark-1.1-20260709"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
12731
moderation_latency
(null)
generation_time
13710
tokens_prompt
46
tokens_completion
275
native_tokens_prompt
199
native_tokens_completion
2470
native_tokens_completion_images
0
native_tokens_reasoning
2248
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
"auto"
usage
0.01074625
router
(null)
provider_responses
0
endpoint_id
"b2b9f6f9-8880-41c1-bd0c-867650fd5238"
id
"resp_6a64f3ad355091d7152c4c4a"
is_byok
false
latency
362
model_permaslug
"meta/muse-spark-1.1-20260709"
provider_name
"Meta"
status
200
user_agent
"langchainjs-openai/1.0.0 ((node/v24.18.0; linux; x64))"
http_referer
(null)
request_id
"req-1785000877-I1ePIorws1T8jd982Vdq"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1785000877-u4eYbx9ZDZdAmHFFmJyi"
upstream_id
"resp_6a64f3ad355091d7152c4c4a"
total_cost
0.01074625
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Meta"
response_cache_source_id
(null)
data_region
"global"
Evaluation details
Result
Evaluator
Details
Meta Data
100.00%
Matches word count
n/a
neededClean
false
sentences
8
wordCounts
0
20
1
20
2
20
3
20
4
20
5
20
6
20
7
20