NC Bench
Overview
About
Tests
Models
Model
Writer: Palmyra X5
Test
N-Length Sentences
Scenario
Write sentences with 10 words each
Run ID
2026-02-08-01KGYZ3HZKTHEVAQFXM3ND2A1H
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
Rain tapped the window like fingers on glass. The clock struck midnight, its chime sharp and cold. A man stood frozen, staring at the body. Blood pooled slowly beneath the victim’s still head. The room smelled of copper and burnt coffee beans. One shoe lay overturned near the doorway’s edge. A single rose rested on the dining room table. Footsteps echoed faintly in the empty hallway beyond. The phone rang once, then fell into silence. He realized too late—he was not alone downstairs.
created_at
"2026-02-08T15:49:50.117484+00:00"
Sunday, February 8th, 2026 at 3:49:50 PM GMT+00:00
model
"writer/palmyra-x5-20250428"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
6691
moderation_latency
223
generation_time
7958
tokens_prompt
35
tokens_completion
112
native_tokens_prompt
273
native_tokens_completion
113
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
0.0008418
router
(null)
provider_responses
0
status
200
is_byok
false
latency
6690
endpoint_id
"c684c4e7-1b77-4ca5-9516-7ecc66e2c455"
provider_name
"Amazon Bedrock"
model_permaslug
"writer/palmyra-x5-20250428"
api_type
"completions"
id
"gen-1770565781-vMKXnpMRwK68ihkzTjYE"
upstream_id
(null)
total_cost
0.0008418
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Amazon Bedrock"
Evaluation details
Result
Evaluator
Details
Meta Data
47.7044%
Matches word count
n/a
neededClean
false
sentences
10
wordCounts
0
8
1
9
2
8
3
8
4
9
5
8
6
9
7
8
8
8
9
9