NC Bench
Overview
About
Tests
Models
Model
MoonshotAI: Kimi K2.5
Test
N-Length Sentences
Scenario
Write sentences with 20 words each
Run ID
2026-02-08-01KGYZPY9V1VYSSRY9G12N94T9
Model input
User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 20 words. Please make sure that each sentence has the same length. Only return the opening itself.
Model response
Messages
Meta
AI
The cold rain lashed against the tall windows of the mansion as Detective Chen stepped through the heavy front doors. She wiped boots on the worn mat and noticed strange smell of lavender mixed with something metallic and undeniably sharp. The butler stood motionless in the shadows, his face pale as moonlight and his hands trembling slightly at his sides. "She is upstairs," he whispered, pointing toward the grand staircase where a single red rose lay crushed upon the step. Detective Chen nodded slowly and began her ascent, each creaking step echoing like gunshots in the silent, oppressive dark hallway.
created_at
"2026-02-08T16:00:48.786952+00:00"
Sunday, February 8th, 2026 at 4:00:48 PM GMT+00:00
model
"moonshotai/kimi-k2.5-0127"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
740
moderation_latency
(null)
generation_time
21415
tokens_prompt
35
tokens_completion
3998
native_tokens_prompt
43
native_tokens_completion
4050
native_tokens_completion_images
(null)
native_tokens_reasoning
3297
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
0.0121758
router
(null)
provider_responses
0
status
(null)
is_byok
false
latency
10046
endpoint_id
"49762299-66fd-4514-b0ee-c9e11e231e3b"
provider_name
"Moonshot AI"
model_permaslug
"moonshotai/kimi-k2.5-0127"
1
id
"chatcmpl-8a80e0308b7c48cfbfa63775fe4729ea"
status
200
is_byok
false
latency
740
endpoint_id
"6b68e10a-44e0-4815-9b96-52f34335f83d"
provider_name
"BaseTen"
model_permaslug
"moonshotai/kimi-k2.5-0127"
api_type
"completions"
id
"gen-1770566416-UysCahwYuz0bexMtZsX3"
upstream_id
"chatcmpl-8a80e0308b7c48cfbfa63775fe4729ea"
total_cost
0.0121758
cache_discount
(null)
upstream_inference_cost
0
provider_name
"BaseTen"
Evaluation details
Result
Evaluator
Details
Meta Data
100.0000%
Matches word count
n/a
neededClean
false
sentences
5
wordCounts
0
20
1
20
2
20
3
20
4
20