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

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_id182717
external_user(null)
streamedtrue
cancelledfalse
latency299
moderation_latency141
generation_time1729
tokens_prompt35
tokens_completion130
native_tokens_prompt273
native_tokens_completion133
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" 
usage0.0009618
router(null)
provider_responses
0
status200
is_byokfalse
latency298
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_cost0.0009618
cache_discount(null)
upstream_inference_cost0
provider_name"Amazon Bedrock" 

Evaluation details

Result Evaluator Details Meta Data
77.4610% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
08
110
29
39
49
510
69
79
810
99