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Run: 2026-07-25-01KYD5SX75H7R5032KCM50B448
Run Details
Model:
Muse Spark 1.1 (Reasoning, Minimal)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
8.3s
Cost:
$0.006254
Provider:
Meta
Evaluation summary
Score
Evaluator
Details Link
92.13%
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 detective arrived precisely midnight, finding Hawthorne Manor bathed in unnatural silence despite roaring storm outside wrought iron gates. Inside, Lord Ashford lay sprawled across library floor, antique dagger protruding theatrically from his tailored dinner jacket like punctuation mark. The household staff huddled near fireplace, their faces pale masks concealing secrets, guilt, and poorly rehearsed grief for questioning detective. Nobody touched anything, Mrs. Whitmore declared firmly, though fresh footprints clearly marked bloodstained rug beneath victim awaiting forensic analysis tonight. Detective Marlowe knelt beside body, noticing missing cufflink, smudged lipstick, and faint scent lingering perfume that definitely did not belong.
created_at
"2026-07-25T17:40:11.117Z"
7/25/2026, 5:40:11 PM
model
"meta/muse-spark-1.1-20260709"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
7725
moderation_latency
(null)
generation_time
8283
tokens_prompt
46
tokens_completion
190
native_tokens_prompt
199
native_tokens_completion
1413
native_tokens_completion_images
0
native_tokens_reasoning
1257
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
0.006254
router
(null)
provider_responses
0
endpoint_id
"b2b9f6f9-8880-41c1-bd0c-867650fd5238"
id
"resp_6a64f4fb4381fb7abf5f4c17"
is_byok
false
latency
480
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-1785001211-Ef2MXNKmCAZJ9wCL2kg5"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1785001211-As5u3rRxInSQYCF6Hq0V"
upstream_id
"resp_6a64f4fb4381fb7abf5f4c17"
total_cost
0.006254
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
92.13%
Matches word count
n/a
neededClean
false
sentences
5
wordCounts
0
19
1
20
2
20
3
20
4
20