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Run: 2026-03-11-01KKFDN9PQQ07JW8YSW56WHHGZ
Run Details
Model:
Stealth: Hunter Alpha
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
17.6s
Cost:
$0.000000
Provider:
Stealth
Evaluation summary
Score
Evaluator
Details Link
72.16%
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 Marlowe pressed his palms against the frosted window, watching the snow settle like ash across the courtyard below. The body slumped in the armchair looked almost peaceful, except for the dark bloom spreading silently across the white shirt. She had been dead for hours, they said, yet the house remained impossibly cold, as though winter itself had entered. A single glass of whiskey sat untouched on the table beside her, positioned precisely where her right hand might have reached. Marlowe circled slowly, noting the absence of forced entry, the carefully drawn curtains, and the telephone off its hook. Everything suggested premeditation, yet nothing suggested struggle, as though the victim had welcomed whoever arrived at her door tonight. The front door had been locked from inside, he realized, which meant the killer was either still here or nowhere. He knelt beside her and noticed something clutched in her left palm—a folded note, small, written in trembling red ink. The grandfather clock in the hallway struck midnight, its chimes reverberating through empty rooms like a heartbeat refusing to stop. Upstairs, a floorboard groaned under sudden weight, though Marlowe had checked every closet, every crawlspace, every shadow twenty minutes ago. He drew his revolver and pressed against the staircase wall, listening as footsteps retreated toward the attic door, deliberate and unhurried. The lights flickered once and died, plunging the house into darkness so complete that even his own breathing felt intrusive and loud. From somewhere above, a woman's voice whispered his name—not hers, not the victim's, but someone he had buried years before.
created_at
"2026-03-11T21:43:17.476Z"
3/11/2026, 9:43:17 PM
model
"openrouter/hunter-alpha"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
834
moderation_latency
(null)
generation_time
17555
tokens_prompt
46
tokens_completion
1115
native_tokens_prompt
2083
native_tokens_completion
924
native_tokens_completion_images
(null)
native_tokens_reasoning
696
native_tokens_cached
2048
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
router
(null)
provider_responses
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.14.0; linux; x64))"
http_referer
(null)
api_type
"completions"
id
"gen-1773265397-XL6YCYROaUtIuGOlFIiS"
upstream_id
"gen-1773265397-XL6YCYROaUtIuGOlFIiS"
total_cost
0
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Stealth"
Evaluation details
Result
Evaluator
Details
Meta Data
72.16%
Matches word count
n/a
neededClean
false
sentences
13
wordCounts
0
19
1
20
2
20
3
21
4
19
5
19
6
20
7
21
8
20
9
20
10
21
11
22
12
21