Run: 2026-03-11-01KKFCBWV6HRPND39Y0S0NSZZW

Run Details

Model:: Stealth: Healer Alpha
Test:: N-Length Sentences
Scenario:: Write sentences with 5 words each
Duration:: 2.7s
Cost:: $0.000000
Provider:: Stealth

Evaluation summary

Score	Evaluator	Details Link
6.55%	Matches word count	(details)

Model input

User/Human

Please write the opening scene of a murder mystery where each sentence has exactly 5 words.
Please make sure that each sentence has the same length. Only return the opening itself.

Model response

The old mansion stood shrouded in fog.
Rain lashed against the tall, dark windows.
Inside, the grand hall was deathly still.
A scream had echoed there just moments ago.
Now, only a body remained on the floor.
The victim was slumped by the cold fireplace.
A letter opener, bloody, lay beside him.
Footprints stained the expensive, Persian rug.
The heavy front door was bolted from inside.
No one had been seen leaving the house.
Detective Aris arrived, his coat dripping onto marble.
He scanned the room, his eyes sharp, cold.
A chilling truth waited within the silent scene.

Evaluation details

Result

Evaluator

Details

Meta Data

6.55%

Matches word count

n/a

neededClean

false

sentences

wordCounts

0	7
1	7
2	7
3	8
4	8
5	8
6	7
7	6
8	8
9	8
10	8
11	8
12	8

created_at	"2026-03-11T21:20:40.818Z" 3/11/2026, 9:20:40 PM
model	"openrouter/healer-alpha"
app_id	182717
external_user	(null)
streamed	true
cancelled	false
latency	520
moderation_latency	(null)
generation_time	2551
tokens_prompt	46
tokens_completion	336
native_tokens_prompt	2158
native_tokens_completion	270
native_tokens_completion_images	(null)
native_tokens_reasoning	183
native_tokens_cached	2118
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-1773264040-HI210DIjLmaDXYbF965F"
upstream_id	"gen-1773264040-HI210DIjLmaDXYbF965F"
total_cost	0
cache_discount	(null)
upstream_inference_cost	0
provider_name	"Stealth"