NC Bench
Overview
About
Tests
Models
Model
Writer: Palmyra X5
Test
N-Length Sentences
Scenario
Write sentences with 5 words each
Run ID
2026-02-08-01KGYY0Z4ZRVFBP42QYKV3GAZG
Model input
User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 5 words. Please make sure that each sentence has the same length. Only return the opening itself.
Model response
Messages
Meta
AI
Moonlight pierced thick forest clouds. Footsteps crunched frozen gravel sharply. A woman gasped, dropped keys. Cold wind whispered through bare branches. Gunshot cracked—silence swallowed sound. Scarlet bloomed on white snow. Her body lay still, posed. A single blue glove fluttered. Wind carried distant, muffled sirens. Watch read ten forty-five exactly. No footprints led from corpse. House windows stayed dark, unblinking. Neighbor’s dog howled once, abruptly. Curtains stirred despite locked latches. Faint perfume lingered—lilacs and iron. One shoe stood neatly placed. Cell phone buzzed inside dead hand. Message read: “I know everything.”
created_at
"2026-02-08T15:30:51.385107+00:00"
Sunday, February 8th, 2026 at 3:30:51 PM GMT+00:00
model
"writer/palmyra-x5-20250428"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
235
moderation_latency
156
generation_time
2389
tokens_prompt
35
tokens_completion
160
native_tokens_prompt
272
native_tokens_completion
165
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
0.0011532
router
(null)
provider_responses
0
status
200
is_byok
false
latency
235
endpoint_id
"c684c4e7-1b77-4ca5-9516-7ecc66e2c455"
provider_name
"Amazon Bedrock"
model_permaslug
"writer/palmyra-x5-20250428"
api_type
"completions"
id
"gen-1770564648-eLQIuOlhqIfZCLphB7R5"
upstream_id
(null)
total_cost
0.0011532
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Amazon Bedrock"
Evaluation details
Result
Evaluator
Details
Meta Data
95.0845%
Matches word count
n/a
neededClean
false
sentences
18
wordCounts
0
5
1
5
2
5
3
6
4
5
5
5
6
5
7
5
8
5
9
6
10
5
11
5
12
5
13
5
14
6
15
5
16
6
17
5