NC Bench
Overview
About
Tests
Models
Model
Writer: Palmyra X5
Test
N-Length Sentences
Scenario
Write sentences with 10 words each
Run ID
2026-02-08-01KGZ0R7KJ8WXA5K72QY6V1XKC
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 windows like secrets begging to be heard. Detective Vale stood in the doorway, hat low, eyes sharp. The body lay sprawled beneath the shattered crystal chandelier. Blood pooled slowly, forming a perfect halo around her head. A single white glove rested inches from her outstretched left hand. The clock stopped at precisely ten past ten, frozen in horror. Smoke curled from a half-burnt letter in the fireplace. Vale knelt, lifted the glove, and found no fingerprints at all. Outside, a crow shrieked once, then vanished into the fog. He whispered, “Whoever did this wanted her silenced for good.”
created_at
"2026-02-08T16:18:33.139005+00:00"
Sunday, February 8th, 2026 at 4:18:33 PM GMT+00:00
model
"writer/palmyra-x5-20250428"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
3097
moderation_latency
175
generation_time
4870
tokens_prompt
35
tokens_completion
142
native_tokens_prompt
273
native_tokens_completion
146
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
0.0010398
router
(null)
provider_responses
0
status
200
is_byok
false
latency
3097
endpoint_id
"c684c4e7-1b77-4ca5-9516-7ecc66e2c455"
provider_name
"Amazon Bedrock"
model_permaslug
"writer/palmyra-x5-20250428"
api_type
"completions"
id
"gen-1770567507-BbiiASbxnAHtGuTwXEdh"
upstream_id
(null)
total_cost
0.0010398
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Amazon Bedrock"
Evaluation details
Result
Evaluator
Details
Meta Data
89.6327%
Matches word count
n/a
neededClean
false
sentences
10
wordCounts
0
10
1
10
2
9
3
10
4
11
5
11
6
10
7
11
8
10
9
10