NC Bench
Overview
About
Tests
Models
Model
Writer: Palmyra X5
Test
N-Length Sentences
Scenario
Write sentences with 20 words each
Run ID
2026-02-08-01KGYYXNV5XFCH4J5462KM0YYK
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 fell in silver sheets over the crumbling stone mansion nestled deep within the ancient forest’s shadowed edge. Inside, a grandfather clock struck midnight as a single candle flickered weakly against the oppressive darkness of the main hallway. Footsteps echoed—too light to be the butler’s, too steady to belong to the nervous housekeeper—moving swiftly toward the library door. A muffled gasp pierced the silence, followed by the sharp scent of almonds spreading slowly through the cold, damp air of the study. The body lay sprawled across the Persian rug, one hand clutching a torn letter, the other outstretched toward a shattered monocle. Blood pooled beneath the victim’s head, mixing with spilled brandy from an overturned glass beside an empty, unlabeled wine bottle. No one had heard the shot, though the window was open, its curtains flapping like ghostly wings in the storm-lashed night breeze. The family heirloom dagger was missing from the display case, its absence noted by the maid who entered with fresh firewood at dawn. Detective Mallory arrived at nine a.m., trench coat soaked, eyes scanning every guest with quiet, practiced suspicion hidden behind his thin smile. Each guest claimed innocence, yet all wore expressions strained by secrets too heavy to speak and fears too dark to name aloud.
created_at
"2026-02-08T15:46:34.786813+00:00"
Sunday, February 8th, 2026 at 3:46:34 PM GMT+00:00
model
"writer/palmyra-x5-20250428"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1592
moderation_latency
158
generation_time
5255
tokens_prompt
35
tokens_completion
277
native_tokens_prompt
273
native_tokens_completion
279
native_tokens_completion_images
(null)
native_tokens_reasoning
0
native_tokens_cached
0
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
0.0018378
router
(null)
provider_responses
0
status
200
is_byok
false
latency
1591
endpoint_id
"c684c4e7-1b77-4ca5-9516-7ecc66e2c455"
provider_name
"Amazon Bedrock"
model_permaslug
"writer/palmyra-x5-20250428"
api_type
"completions"
id
"gen-1770565588-kjykrXPZx6HlhdPSfTIS"
upstream_id
(null)
total_cost
0.0018378
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Amazon Bedrock"
Evaluation details
Result
Evaluator
Details
Meta Data
36.5239%
Matches word count
n/a
neededClean
false
sentences
10
wordCounts
0
19
1
20
2
22
3
23
4
21
5
20
6
23
7
23
8
22
9
22