NC Bench
Overview
About
Tests
Models
Model
MoonshotAI: Kimi K2.5
Test
N-Length Sentences
Scenario
Write sentences with 20 words each
Run ID
2026-02-08-01KGYZWXKR3621WAQGPKV4Q32P
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 butler discovered the body at dawn, lying still among scattered roses in the conservatory's humid, glass-enclosed tropical garden paradise. Blood stained the victim's expensive silk cravat, creating a dark crimson contrast against the pristine white of his dress shirt. Inspector Morrison examined the scene carefully, noting how the broken champagne flute glittered beneath the wrought-iron garden bench seat nearby. A strange smell of bitter almonds lingered in the air, suggesting poison rather than the obvious throat wound indicated otherwise. Someone had moved the heavy marble statue, leaving visible drag marks across the Italian tiles that pointed toward the library. The clock stopped at midnight, confirming that murder occurred precisely when the storm began raging outside the old manor walls.
created_at
"2026-02-08T16:04:17.247705+00:00"
Sunday, February 8th, 2026 at 4:04:17 PM GMT+00:00
model
"moonshotai/kimi-k2.5-0127"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
811
moderation_latency
(null)
generation_time
43633
tokens_prompt
35
tokens_completion
2341
native_tokens_prompt
42
native_tokens_completion
2347
native_tokens_completion_images
(null)
native_tokens_reasoning
1833
native_tokens_cached
42
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
0.0070452
router
(null)
provider_responses
0
id
"chatcmpl-6988b3d476a561cdea502537"
status
200
is_byok
false
latency
811
endpoint_id
"49762299-66fd-4514-b0ee-c9e11e231e3b"
provider_name
"Moonshot AI"
model_permaslug
"moonshotai/kimi-k2.5-0127"
api_type
"completions"
id
"gen-1770566612-vnQ2ZZG4McZ76hBNZyix"
upstream_id
"chatcmpl-6988b3d476a561cdea502537"
total_cost
0.0070452
cache_discount
0.000021
upstream_inference_cost
0
provider_name
"Moonshot AI"
Evaluation details
Result
Evaluator
Details
Meta Data
86.8844%
Matches word count
n/a
neededClean
false
sentences
6
wordCounts
0
21
1
20
2
21
3
20
4
20
5
20