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Run: 2026-07-25-01KYD6AMWGBARG6MWQ24TX4A42
Run Details
Model:
Muse Spark 1.1 (Reasoning, Minimal)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
5.7s
Cost:
$0.004025
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 beacon sputtered, casting frantic shadows across the storm-lashed cliffs where Eleanor's body lay cold, pale, and utterly still. Detective Miller had not expected another murder, especially not one involving his estranged childhood best friend on such lonely night. Her right hand clutched a sodden theatre ticket dated yesterday, yet the lighthouse closed years ago for mysterious bureaucratic reasons. The wind howled louder, extinguishing his lantern, leaving only the ticket's faint phosphorescent glow for illumination inside oppressive suffocating darkness. Someone had staged this scene meticulously, and Miller realized the killer was still watching nearby from shadows within listening silence.
created_at
"2026-07-25T17:49:19.639Z"
7/25/2026, 5:49:19 PM
model
"meta/muse-spark-1.1-20260709"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
4742
moderation_latency
(null)
generation_time
5613
tokens_prompt
46
tokens_completion
181
native_tokens_prompt
199
native_tokens_completion
905
native_tokens_completion_images
0
native_tokens_reasoning
763
native_tokens_cached
64
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
0.0040246
router
(null)
provider_responses
0
endpoint_id
"b2b9f6f9-8880-41c1-bd0c-867650fd5238"
id
"resp_6a64f71fe75381f1f8ec4a78"
is_byok
false
latency
263
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-1785001759-nePZu7ViczDgW0JZlp0q"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1785001759-to7WVNCSv2s4V8Ue3Dj4"
upstream_id
"resp_6a64f71fe75381f1f8ec4a78"
total_cost
0.0040246
cache_discount
0.0000704
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