Model

Writer: Palmyra X5

Test

N-Length Sentences

Scenario

Write sentences with 10 words each

Run ID

2026-02-08-01KGYX4CF13TDRNBXKG6YD08KX

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

AI
Rain tapped the windowpane like secrets wanting out. Detective Mara Vex stirred cold coffee, thoughts circling yesterday’s silence. The coroner’s van idled by Elm Street’s crooked hydrant, waiting. A single glove lay in the gutter, fingers splayed in shock. No footprints marred the wet sidewalk near the body. She knelt, noting how the victim’s watch stopped at 3:03. Blood bloomed under the man’s ear, dark as old ink. His overcoat pocket held a train ticket to nowhere town. Mara frowned at the name penciled faintly on the stub. Crowds murmured, but no one claimed they’d seen a struggle. Her partner coughed, offering a yellowed photo taken at dusk. The victim’s eyes, wide open, reflected someone not standing there. A child’s balloon drifted down, red and quietly drifting.
created_at"2026-02-08T15:15:15.620414+00:00" Sunday, February 8th, 2026 at 3:15:15 PM GMT+00:00
model"writer/palmyra-x5-20250428" 
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency861
moderation_latency172
generation_time3254
tokens_prompt35
tokens_completion194
native_tokens_prompt273
native_tokens_completion197
native_tokens_completion_images(null)
native_tokens_reasoning0
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
origin"https://ncbench.com/" 
is_byokfalse
finish_reason"stop" 
native_finish_reason"stop" 
usage0.0013458
router(null)
provider_responses
0
status200
is_byokfalse
latency857
endpoint_id"c684c4e7-1b77-4ca5-9516-7ecc66e2c455" 
provider_name"Amazon Bedrock" 
model_permaslug"writer/palmyra-x5-20250428" 
api_type"completions" 
id"gen-1770563711-nvtaPIJ8FsJE7QgVSlHh" 
upstream_id(null)
total_cost0.0013458
cache_discount(null)
upstream_inference_cost0
provider_name"Amazon Bedrock" 

Evaluation details

Result Evaluator Details Meta Data
88.6435% Matches word count n/a
neededCleanfalse
sentences13
wordCounts
08
110
210
311
49
510
610
710
810
910
1010
1110
129