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Run: 2026-07-25-01KYD56TDJ6SFKEM0M1AFE2V6T
Run Details
Model:
Muse Spark 1.1 (Reasoning, Minimal)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
8.3s
Cost:
$0.006513
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 keeper never missed his morning signal, until today when silence screamed louder than any storm winds ever could. Detective Mara Quinn arrived before dawn, her boots crunching frost, coffee steaming, intuition already whispering that something felt terribly wrong. The iron door stood ajar, revealing blood smeared across cold stone steps leading upward toward the extinguished lantern room above. Inside, the keeper lay sprawled beneath shattered glass, one hand clutching a brass key, the other frozen mid-reach toward darkness. Mara knelt silently, noticing unfamiliar footprints leading away from the body toward darkness where someone still waited inside the tower.
created_at
"2026-07-25T17:29:45.658Z"
7/25/2026, 5:29:45 PM
model
"meta/muse-spark-1.1-20260709"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
7737
moderation_latency
(null)
generation_time
8284
tokens_prompt
46
tokens_completion
174
native_tokens_prompt
199
native_tokens_completion
1474
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
0.00651325
router
(null)
provider_responses
0
endpoint_id
"b2b9f6f9-8880-41c1-bd0c-867650fd5238"
id
"resp_6a64f289c95978439986459f"
is_byok
false
latency
327
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-1785000585-g26S91yZ74hvHp7U4JZ1"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1785000585-NCu78iY59IhjTkbmSL13"
upstream_id
"resp_6a64f289c95978439986459f"
total_cost
0.00651325
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