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Run: 2026-02-24-01KJ8WT5QNP24Y933DG40TZ6V7
Run Details
Model:
Aion 2.0
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
30.6s
Cost:
$0.002192
Provider:
AionLabs
Evaluation summary
Score
Evaluator
Details Link
53.79%
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 grand library stood utterly silent that evening, its towering oak shelves holding centuries of forgotten knowledge and one fresh, bloody corpse. Detective Aris Thorne then entered the room, his sharp eyes immediately noting the scattered papers and the overturned chair. The victim was Sir Reginald Vance, a wealthy collector whose obsession with rare manuscripts was quite well-known locally. A single, peculiar dagger protruded from his chest, its ornate handle gleaming under the harsh electric light above him. Thorne carefully approached the body, avoiding the dark pool of blood that had seeped into the expensive Persian rug. He noticed a torn piece of parchment clutched in the dead man's hand, covered in cryptic symbols and strange numbers. The windows were all locked from the inside, suggesting the murderer must have used another exit or perhaps remained. A faint scent of expensive cigar smoke lingered in the air, hinting at a visitor earlier that same evening.
created_at
"2026-02-24T22:37:43.041Z"
2/24/2026, 10:37:43 PM
model
"aion-labs/aion-2.0-20260223"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
2215
moderation_latency
(null)
generation_time
30523
tokens_prompt
46
tokens_completion
1429
native_tokens_prompt
142
native_tokens_completion
1299
native_tokens_completion_images
(null)
native_tokens_reasoning
1184
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
0.002192
router
(null)
provider_responses
0
endpoint_id
"1e93b0bb-eb0f-49bc-8fda-947105413b86"
id
"509965df-ec73-4e1a-bac6-d6ff0d7a4f06"
is_byok
false
latency
105
model_permaslug
"aion-labs/aion-2.0-20260223"
provider_name
"AionLabs"
status
200
api_type
"completions"
id
"gen-1771972663-O4YKibFqw5z4MLHtHN7l"
upstream_id
"509965df-ec73-4e1a-bac6-d6ff0d7a4f06"
total_cost
0.002192
cache_discount
(null)
upstream_inference_cost
0
provider_name
"AionLabs"
Evaluation details
Result
Evaluator
Details
Meta Data
53.79%
Matches word count
n/a
neededClean
false
sentences
8
wordCounts
0
22
1
19
2
18
3
19
4
19
5
20
6
19
7
19