Model

MoonshotAI: Kimi K2.5

Test

N-Length Sentences

Scenario

Write sentences with 20 words each

Run ID

2026-02-08-01KGYZB1FYQG5H0XZ82GMK45D2

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

AI
The rain lashed against the windows of the old Victorian mansion as guests gathered in the candlelit drawing room tonight. Lady Blackwood's body lay sprawled across the Persian carpet, her emerald necklace missing and her eyes staring at the ceiling. Detective Miller stepped forward, his shoes clicking against the marble floor while everyone held their breath in absolute deafening silence. "Nobody leaves this room," he commanded, scanning the faces of the terrified partygoers with his piercing gray eyes narrowed slightly. Outside, thunder crashed as the storm intensified, trapping them all together with a killer hidden somewhere among their very number.
created_at"2026-02-08T15:55:14.984332+00:00" Sunday, February 8th, 2026 at 3:55:14 PM GMT+00:00
model"moonshotai/kimi-k2.5-0127" 
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency787
moderation_latency(null)
generation_time87213
tokens_prompt35
tokens_completion4551
native_tokens_prompt42
native_tokens_completion4574
native_tokens_completion_images(null)
native_tokens_reasoning3843
native_tokens_cached42
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
origin"https://ncbench.com/" 
is_byokfalse
finish_reason"stop" 
native_finish_reason"stop" 
usage0.0137262
router(null)
provider_responses
0
id"chatcmpl-6988b18b1f3312997503986c" 
status200
is_byokfalse
latency787
endpoint_id"49762299-66fd-4514-b0ee-c9e11e231e3b" 
provider_name"Moonshot AI" 
model_permaslug"moonshotai/kimi-k2.5-0127" 
api_type"completions" 
id"gen-1770566026-rTg0nGFpApHOHPb4sKfR" 
upstream_id"chatcmpl-6988b18b1f3312997503986c" 
total_cost0.0137262
cache_discount0.000021
upstream_inference_cost0
provider_name"Moonshot AI" 

Evaluation details

Result Evaluator Details Meta Data
100.0000% Matches word count n/a
neededCleanfalse
sentences5
wordCounts
020
120
220
320
420