Run: 2026-02-24-01KJ8WT5QNP24Y933DG40TZ6V7

Run Details

Model:
Aion 2.0
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

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_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2215
moderation_latency(null)
generation_time30523
tokens_prompt46
tokens_completion1429
native_tokens_prompt142
native_tokens_completion1299
native_tokens_completion_images(null)
native_tokens_reasoning1184
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"stop"
usage0.002192
router(null)
provider_responses
0
endpoint_id"1e93b0bb-eb0f-49bc-8fda-947105413b86"
id"509965df-ec73-4e1a-bac6-d6ff0d7a4f06"
is_byokfalse
latency105
model_permaslug"aion-labs/aion-2.0-20260223"
provider_name"AionLabs"
status200
api_type"completions"
id"gen-1771972663-O4YKibFqw5z4MLHtHN7l"
upstream_id"509965df-ec73-4e1a-bac6-d6ff0d7a4f06"
total_cost0.002192
cache_discount(null)
upstream_inference_cost0
provider_name"AionLabs"

Evaluation details

Result Evaluator Details Meta Data
53.79% Matches word count n/a
neededCleanfalse
sentences8
wordCounts
022
119
218
319
419
520
619
719