NC Bench
Overview
About
Tests
Models
Model
Writer: Palmyra X5
Test
N-Length Sentences
Scenario
Write sentences with 10 words each
Run ID
2026-02-08-01KGYZJJJDSDHZ4MSD3Q8BDR11
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 tapped the window like tiny, cold fingers. Detective Marlowe sipped bitter coffee, staring at the ceiling. A body lay sprawled on the study’s Persian rug. Blood stained the silver letter opener embedded in his chest. The clock stopped at 2:14, frozen mid-tick. No footprints marred the hardwood floor near the corpse. Smoke curled from a half-burnt cigarette on the desk. A single pearl earring rested beneath the oak bookshelf. The victim’s wife claimed she was visiting her sister. Neighbors heard nothing unusual, just thunder and distant dog barks. Marlowe flipped his notebook shut, squinting at the storm. Someone in this quiet town was lying very convincingly. He adjusted his coat, stepping into the slick, dark night.
created_at
"2026-02-08T15:57:57.153252+00:00"
Sunday, February 8th, 2026 at 3:57:57 PM GMT+00:00
model
"writer/palmyra-x5-20250428"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
721
moderation_latency
117
generation_time
2708
tokens_prompt
35
tokens_completion
173
native_tokens_prompt
273
native_tokens_completion
178
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
0.0012318
router
(null)
provider_responses
0
status
200
is_byok
false
latency
720
endpoint_id
"c684c4e7-1b77-4ca5-9516-7ecc66e2c455"
provider_name
"Amazon Bedrock"
model_permaslug
"writer/palmyra-x5-20250428"
api_type
"completions"
id
"gen-1770566273-5LcRCagzGTaCsoKi8Qy4"
upstream_id
(null)
total_cost
0.0012318
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Amazon Bedrock"
Evaluation details
Result
Evaluator
Details
Meta Data
78.6749%
Matches word count
n/a
neededClean
false
sentences
13
wordCounts
0
9
1
9
2
9
3
10
4
8
5
9
6
10
7
9
8
9
9
10
10
9
11
9
12
10