NC Bench
Overview
About
Tests
Categories
Models
Vendors
Compare
Run: 2026-03-11-01KKFF5C9DQ71SQKRR2DQ19VM4
Run Details
Model:
Stealth: Healer Alpha
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
3.8s
Cost:
$0.000000
Provider:
Stealth
Evaluation summary
Score
Evaluator
Details Link
37.09%
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 rain hammered against the windows of the old mansion, echoing the tense silence within the dimly lit study. Inside, Detective Elara Vance examined the scene, her gaze sweeping over the overturned chair and shattered porcelain teacup. Lord Alistair Blackwood lay sprawled upon the Persian rug, his eyes frozen open, staring at the ornate ceiling above. A single, crimson rose was placed delicately upon his chest, its thorns glinting in the flickering fireplace light. The family gathered in the hall, their whispers cut short by the grandfather clockâs solemn, chiming stroke of midnight. Every locked door, every alibi, every tear felt like another thread in the web already binding them all.
created_at
"2026-03-11T22:09:32.985Z"
3/11/2026, 10:09:32 PM
model
"openrouter/healer-alpha"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
585
moderation_latency
(null)
generation_time
3559
tokens_prompt
46
tokens_completion
365
native_tokens_prompt
2119
native_tokens_completion
309
native_tokens_completion_images
(null)
native_tokens_reasoning
190
native_tokens_cached
2093
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-1773266972-KfQ1RKnoIErbvMWuMUub"
upstream_id
"gen-1773266972-KfQ1RKnoIErbvMWuMUub"
total_cost
0
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Stealth"
Evaluation details
Result
Evaluator
Details
Meta Data
37.09%
Matches word count
n/a
neededClean
false
sentences
6
wordCounts
0
19
1
18
2
19
3
18
4
19
5
18