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Run: 2026-07-25-01KYD4YJ0SSMPTFX95VQ3CDZ2E
Run Details
Model:
Muse Spark 1.1 (Reasoning, Medium)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
7.1s
Cost:
$0.005264
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 lighthouse had not shone for three nights, and Inspector Hale arrived through relentless coastal storm alone at midnight exactly. The door was open, banging rhythmically, revealing Evelyn Crowe dead upon the cold stone floor beneath shattered bloodied lantern glass. Beside her lay a single, perfectly clean dinner plate, though the island had been abandoned for months before tonight's horror. Hale knelt, noticed her fingers clenched tightly around a sodden scrap bearing his own familiar name in faded ink unmistakably. Outside, the wind abruptly died, replaced by deliberate footsteps climbing the spiral stairs behind him slowly steadily without hesitation now.
created_at
"2026-07-25T17:25:14.916Z"
7/25/2026, 5:25:14 PM
model
"meta/muse-spark-1.1-20260709"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
6518
moderation_latency
(null)
generation_time
7056
tokens_prompt
46
tokens_completion
170
native_tokens_prompt
199
native_tokens_completion
1180
native_tokens_completion_images
0
native_tokens_reasoning
1038
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
0.00526375
router
(null)
provider_responses
0
endpoint_id
"b2b9f6f9-8880-41c1-bd0c-867650fd5238"
id
"resp_6a64f17b2c299a1940ad4e81"
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-1785000314-NJArSCwtZpx1zvWki9Tt"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1785000314-ZDgjGY5rTG8fzXE6eh4I"
upstream_id
"resp_6a64f17b2c299a1940ad4e81"
total_cost
0.00526375
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
5
wordCounts
0
20
1
20
2
20
3
20
4
20