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Run: 2026-07-25-01KYD5CVBWDE0F6JSNKT0MTENS
Run Details
Model:
Muse Spark 1.1 (Reasoning, Medium)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
10.5s
Cost:
$0.008774
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
Detective Mara Quinn arrived at Blackwood Manor precisely midnight, rain hammering her coat like cold accusations she desperately tried ignoring. The butler waited beneath flickering hallway chandelier, his face pale as untouched snow before sunrise holding one bloodstained silver envelope. Inside the library, Lord Alistair Blackwood lay sprawled across Persian rug, throat elegantly slit, eyes still open watching eternal darkness. Beside his cold hand, a shattered crystal decanter leaked expensive brandy onto priceless first edition books nobody dared ever touch. Mara knelt slowly, noticing faint muddy boot prints leading toward balcony doors still swinging in violent wind outside tonight alone. Somewhere upstairs, a woman screamed, but Mara understood that every guest here had wanted Blackwood dead before midnight struck loudly.
created_at
"2026-07-25T17:33:03.235Z"
7/25/2026, 5:33:03 PM
model
"meta/muse-spark-1.1-20260709"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
9734
moderation_latency
(null)
generation_time
10320
tokens_prompt
46
tokens_completion
214
native_tokens_prompt
199
native_tokens_completion
2006
native_tokens_completion_images
0
native_tokens_reasoning
1831
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
0.00877425
router
(null)
provider_responses
0
endpoint_id
"b2b9f6f9-8880-41c1-bd0c-867650fd5238"
id
"resp_6a64f34ffc79ad3fbfa7455b"
is_byok
false
latency
181
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-1785000783-3OrLl7vSjWBxgVipiTZC"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1785000783-dmEIrhVuclv6sZiRI4Uz"
upstream_id
"resp_6a64f34ffc79ad3fbfa7455b"
total_cost
0.00877425
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
6
wordCounts
0
20
1
20
2
20
3
20
4
20
5
20