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Run: 2026-09-23-01M37P3ZT89Q72ZGB7NE27SX10
Run Details
Model:
Aion 3.5 (Reasoning, High)
Test:
N-Length Sentences
Scenario:
Write sentences with 10 words each
Duration:
47.8s
Cost:
$0.011253
Provider:
AionLabs
Evaluation summary
Score
Evaluator
Details Link
92.86%
Matches word count
(details)
Model input
User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 10 words. Please make sure that each sentence has the same length. Only return the opening itself.
Model response
Messages
Meta
AI
The old lighthouse stood silent against the gray morning sky. Detective Mara Vance stepped from her car onto wet gravel. Two officers waited at the door, faces pale and grim. The keeper lay sprawled across the tower's cold stone floor. A brass telescope rested beside his outstretched, lifeless right hand. No blood anywhere, yet his eyes were frozen wide open. Something about the room felt wrong in indescribable, quiet ways. The lantern above them still turned, casting shadows across everything. "He was the friendliest man alive," the deputy whispered softly. Mara knelt beside the body, noting the smell of almonds. Poison, she thought, but nothing about this felt that simple. The keeper's logbook lay open on the desk nearby, untouched. The final entry read simply: "They know about the light." Outside, the tide withdrew, revealing something half-buried in the sand. Mara stepped toward the window, her instincts already sounding alarms.
created_at
"2026-09-23T17:48:21.209Z"
9/23/2026, 5:48:21 PM
model
"aion-labs/aion-3.5-20260923"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
979
moderation_latency
(null)
generation_time
47801
tokens_prompt
46
tokens_completion
1542
native_tokens_prompt
39
native_tokens_completion
1856
native_tokens_completion_images
(null)
native_tokens_reasoning
1305
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
"stop"
service_tier
(null)
usage
0.011253
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer
(null)
request_id
"req-1790185701-g8eEcj858c3I1HuHOxEN"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1790185701-h4UYnJ2I3sslCGTF2H4A"
upstream_id
"35a38153ceed463f9416115e39b509c4"
provider_responses
0
endpoint_id
"09b1fc56-3888-42bd-b7a0-926851c7f9d6"
id
"35a38153ceed463f9416115e39b509c4"
is_byok
false
latency
979
model_permaslug
"aion-labs/aion-3.5-20260923"
provider_name
"AionLabs"
status
200
total_cost
0.011253
cache_discount
(null)
upstream_inference_cost
0
provider_name
"AionLabs"
response_cache_source_id
(null)
data_region
"global"
workspace_id
"97e315e5-d303-487d-83c1-83180e8a13d4"
Evaluation details
Result
Evaluator
Details
Meta Data
92.86%
Matches word count
n/a
neededClean
false
sentences
14
wordCounts
0
10
1
10
2
10
3
10
4
10
5
10
6
10
7
10
8
10
9
10
10
10
11
10
12
20
13
10