NC Bench
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Run: 2026-02-24-01KJ8WGN12VDA3HM97ZNDH7ZJ1
Run Details
Model:
Aion 2.0
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
1m 52s
Cost:
$0.008202
Provider:
AionLabs
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
Detective Arlo Vance found the dead body precisely at midnight in the dark, silent library of the old Henderson estate. A single bullet hole clearly marred the victim's pale forehead, but the deadly murder weapon was nowhere to be found. Moonlight streamed through the tall, broken window, and it finally illuminated scattered papers and a half-empty glass of amber brandy. The victim's frozen face showed sheer terror, yet the locked door suggested no possible escape for the cunning killer inside. A cryptic note clutched in the stiff, cold hand promised revenge for a long-forgotten, terrible betrayal from the distant past. Vance intuitively knew the butler had lied, but the widow's grief seemed utterly genuine and profoundly heartbreaking to everyone present. Everyone in the old house was a suspect, and each certainly had a motive for this brutal, calculated killing now.
created_at
"2026-02-24T22:32:31.02Z"
2/24/2026, 10:32:31 PM
model
"aion-labs/aion-2.0-20260223"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
2188
moderation_latency
(null)
generation_time
111731
tokens_prompt
46
tokens_completion
4718
native_tokens_prompt
142
native_tokens_completion
5055
native_tokens_completion_images
(null)
native_tokens_reasoning
4497
native_tokens_cached
0
num_media_prompt
(null)
num_input_audio_prompt
(null)
num_media_completion
0
num_search_results
(null)
origin
"https://ncbench.com/"
is_byok
false
finish_reason
"stop"
native_finish_reason
"stop"
usage
0.0082016
router
(null)
provider_responses
0
endpoint_id
"1e93b0bb-eb0f-49bc-8fda-947105413b86"
id
"3d7e80c9-0af3-47f3-aa77-b46a7843eecd"
is_byok
false
latency
101
model_permaslug
"aion-labs/aion-2.0-20260223"
provider_name
"AionLabs"
status
200
api_type
"completions"
id
"gen-1771972351-7b4jJj1UtsSfPT7N2Pzk"
upstream_id
"3d7e80c9-0af3-47f3-aa77-b46a7843eecd"
total_cost
0.0082016
cache_discount
(null)
upstream_inference_cost
0
provider_name
"AionLabs"
Evaluation details
Result
Evaluator
Details
Meta Data
100.00%
Matches word count
n/a
neededClean
false
sentences
7
wordCounts
0
20
1
20
2
20
3
20
4
20
5
20
6
20