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Run: 2026-07-25-01KYD73J6SS6B1QJZ84R3E42FT
Run Details
Model:
Muse Spark 1.1 (Reasoning, Medium)
Test:
N-Length Sentences
Scenario:
Write sentences with 10 words each
Duration:
8.1s
Cost:
$0.006420
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 10 words. Please make sure that each sentence has the same length. Only return the opening itself.
Model response
Messages
Meta
AI
The grandfather clock struck midnight, but nobody heard it chime. Detective Mara Ellis pushed open the mansion's heavy oak door. Rain dripped from her coat onto polished cold marble floors. Inside, the victim lay sprawled beside overturned mahogany chess table. Blood stained his white shirt, pooling around fallen black king. "Nobody touches anything until forensics arrives," Ellis muttered very sharply. Butler hovered nearby, hands trembling, eyes fixed on silent corpse. Window was open; curtains danced despite locked outside storm shutters.
created_at
"2026-07-25T18:02:56.095Z"
7/25/2026, 6:02:56 PM
model
"meta/muse-spark-1.1-20260709"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
7572
moderation_latency
(null)
generation_time
8049
tokens_prompt
46
tokens_completion
139
native_tokens_prompt
199
native_tokens_completion
1452
native_tokens_completion_images
0
native_tokens_reasoning
1331
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
0.00641975
router
(null)
provider_responses
0
endpoint_id
"b2b9f6f9-8880-41c1-bd0c-867650fd5238"
id
"resp_6a64fa50ae225dcf01b34a8e"
is_byok
false
latency
261
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-1785002576-vu07zVgoM50XMQAelKXO"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1785002576-ByMtsiplXTFbdyP6CDXT"
upstream_id
"resp_6a64fa50ae225dcf01b34a8e"
total_cost
0.00641975
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
10
1
10
2
10
3
10
4
10
5
10
6
10
7
10