NC Bench
Overview
About
Tests
Models
Model
Writer: Palmyra X5
Test
N-Length Sentences
Scenario
Write sentences with 10 words each
Run ID
2026-02-08-01KGYY2SS6YEX9K6FE4YQSF3X9
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 rain fell hard on cobblestones, echoing through vacant alleyways. Detective Mara Stone stepped cautiously into the dimly lit crime scene. A single glove lay near the victim’s outstretched, lifeless hand. Blood seeped slowly into the cracks of damp, ancient pavement. Her flashlight revealed a shattered pocket watch, frozen at ten thirty. No footprints marked the wet ground—only rain, silence, and fog. The victim wore a navy coat, slightly torn at the left shoulder. A faint scent of almonds lingered beneath the city’s grim dampness. She knelt carefully, avoiding any potential trace of crucial evidence. Something glinted—a gold cufflink shaped like a coiled serpent. Mara whispered one word into her recorder: “Unfinished.” Then, overhead, a window quietly shut in the dark apartment above.
created_at
"2026-02-08T15:31:51.039566+00:00"
Sunday, February 8th, 2026 at 3:31:51 PM GMT+00:00
model
"writer/palmyra-x5-20250428"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
259
moderation_latency
183
generation_time
2259
tokens_prompt
35
tokens_completion
181
native_tokens_prompt
273
native_tokens_completion
185
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
0.0012738
router
(null)
provider_responses
0
status
200
is_byok
false
latency
259
endpoint_id
"c684c4e7-1b77-4ca5-9516-7ecc66e2c455"
provider_name
"Amazon Bedrock"
model_permaslug
"writer/palmyra-x5-20250428"
api_type
"completions"
id
"gen-1770564708-TdvVN1ffmOgkgDte4GDz"
upstream_id
(null)
total_cost
0.0012738
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Amazon Bedrock"
Evaluation details
Result
Evaluator
Details
Meta Data
77.5540%
Matches word count
n/a
neededClean
false
sentences
12
wordCounts
0
10
1
11
2
10
3
10
4
11
5
11
6
12
7
11
8
10
9
10
10
8
11
11