NC Bench
Overview
About
Tests
Models
Model
Writer: Palmyra X5
Test
N-Length Sentences
Scenario
Write sentences with 10 words each
Run ID
2026-02-08-01KGYY0EHAAEQ3PG7244ARSEVX
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 windowpane as clocks struck midnight. The old mansion loomed like a secret long buried underground. Footsteps echoed down the hall, soft yet unmistakably deliberate. A candle flickered once, then died without a witness. Silk gloves rested neatly beside a silver-handled knife. No scream broke the silence—only the wind dared speak. Dust swirled in moonlight cutting across the study floor. The portrait’s eyes seemed to follow whoever entered slowly. A ledger lay open, its final entry written in haste. One name was underlined thrice, smeared with something darker.
created_at
"2026-02-08T15:30:33.789038+00:00"
Sunday, February 8th, 2026 at 3:30:33 PM GMT+00:00
model
"writer/palmyra-x5-20250428"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
299
moderation_latency
141
generation_time
1729
tokens_prompt
35
tokens_completion
130
native_tokens_prompt
273
native_tokens_completion
133
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
0.0009618
router
(null)
provider_responses
0
status
200
is_byok
false
latency
298
endpoint_id
"c684c4e7-1b77-4ca5-9516-7ecc66e2c455"
provider_name
"Amazon Bedrock"
model_permaslug
"writer/palmyra-x5-20250428"
api_type
"completions"
id
"gen-1770564631-yHpmhXnzwQn2qeyl0e37"
upstream_id
(null)
total_cost
0.0009618
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Amazon Bedrock"
Evaluation details
Result
Evaluator
Details
Meta Data
77.4610%
Matches word count
n/a
neededClean
false
sentences
10
wordCounts
0
8
1
10
2
9
3
9
4
9
5
10
6
9
7
9
8
10
9
9