NC Bench
Overview
About
Tests
Models
Model
MoonshotAI: Kimi K2.5
Test
N-Length Sentences
Scenario
Write sentences with 20 words each
Run ID
2026-02-08-01KGYZQBT4NXG9D2R5HSDCAETX
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 rain lashed conservatory windows while Lady Margaret stared at the crimson stain spreading across her antique Persian wool rug. Detective Inspector Blake entered quietly, his boots squeaking on the marble floor as he observed the shattered crystal champagne flute. "Suicide," muttered the constable near the door, though the victim's hands clutched a silver dagger with the monogram clearly reversed. Outside, thunder rolled across the moorland while inside the library someone erased the final entry in the leather guest book. Lady Margaret touched the dagger handle and whispered that the killer remained among us, hiding behind masks of proper grief.
created_at
"2026-02-08T16:01:40.03617+00:00"
Sunday, February 8th, 2026 at 4:01:40 PM GMT+00:00
model
"moonshotai/kimi-k2.5-0127"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
9780
moderation_latency
(null)
generation_time
68773
tokens_prompt
35
tokens_completion
2994
native_tokens_prompt
42
native_tokens_completion
3001
native_tokens_completion_images
(null)
native_tokens_reasoning
2432
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
0.0090072
router
(null)
provider_responses
0
id
"chatcmpl-6988b31e0fb687aa99a26ab4"
status
200
is_byok
false
latency
9780
endpoint_id
"49762299-66fd-4514-b0ee-c9e11e231e3b"
provider_name
"Moonshot AI"
model_permaslug
"moonshotai/kimi-k2.5-0127"
api_type
"completions"
id
"gen-1770566430-wsBMRhcuFfNEkzc3D2qN"
upstream_id
"chatcmpl-6988b31e0fb687aa99a26ab4"
total_cost
0.0090072
cache_discount
0.000021
upstream_inference_cost
0
provider_name
"Moonshot AI"
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