Model

MoonshotAI: Kimi K2.5

Test

N-Length Sentences

Scenario

Write sentences with 10 words each

Run ID

2026-02-08-01KGYZD1V5545Q9JYMMKJX8PCR

Model input

User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 10 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
The rain fell hard against the old Victorian mansion windows. Inside, Detective Miller studied the body sprawled on the carpet. Blood pooled beneath the victim's head like dark red ink. A crystal vase lay shattered near the dead man's hand. Someone had struck him from behind with very great force. Miller knelt down, carefully avoiding the blood with practiced precision. "Time of death was approximately midnight," the coroner had stated. The detective noticed muddy footprints leading toward the grand library. Every guest had gathered in the drawing room for questioning. One among them was certainly hiding a truly terrible secret.
created_at"2026-02-08T15:55:47.677084+00:00" Sunday, February 8th, 2026 at 3:55:47 PM GMT+00:00
model"moonshotai/kimi-k2.5-0127" 
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency758
moderation_latency(null)
generation_time54432
tokens_prompt35
tokens_completion2685
native_tokens_prompt42
native_tokens_completion2674
native_tokens_completion_images(null)
native_tokens_reasoning2220
native_tokens_cached0
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" 
usage0.0080472
router(null)
provider_responses
0
id"chatcmpl-6988b1ccb7f62aebe0480481" 
status200
is_byokfalse
latency758
endpoint_id"49762299-66fd-4514-b0ee-c9e11e231e3b" 
provider_name"Moonshot AI" 
model_permaslug"moonshotai/kimi-k2.5-0127" 
api_type"completions" 
id"gen-1770566092-gAL30lN7lQpCiXWzINZm" 
upstream_id"chatcmpl-6988b1ccb7f62aebe0480481" 
total_cost0.0080472
cache_discount(null)
upstream_inference_cost0
provider_name"Moonshot AI" 

Evaluation details

Result Evaluator Details Meta Data
100.0000% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
010
110
210
310
410
510
610
710
810
910