Model

MoonshotAI: Kimi K2.5

Test

N-Length Sentences

Scenario

Write sentences with 10 words each

Run ID

2026-02-08-01KGYZC2W7AD19W705D84B87X6

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 mansion's tall glass windows. Inside the room, Marlow found the body lying quite still. Blood had pooled darkly beneath the antique mahogany writing desk. A crystal vase lay shattered near the victim's pale hand. The clock had stopped at exactly midnight last night, frozen. Someone had already turned off all the electric lights upstairs. Marlow knelt down to examine the fatal wound quite carefully. The butler stood silent in the doorway right behind him. "I found her like this," the butler whispered very softly. A silver letter opener glinted on the thick carpet nearby. Death had visited this room only three short hours ago. The mystery would not solve itself here tonight at all.
created_at"2026-02-08T15:55:26.812768+00:00" Sunday, February 8th, 2026 at 3:55:26 PM GMT+00:00
model"moonshotai/kimi-k2.5-0127" 
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1084
moderation_latency(null)
generation_time65296
tokens_prompt35
tokens_completion3315
native_tokens_prompt42
native_tokens_completion3335
native_tokens_completion_images(null)
native_tokens_reasoning2848
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" 
usage0.0100092
router(null)
provider_responses
0
id"chatcmpl-6988b1ad7d920b2a4b26e833" 
status200
is_byokfalse
latency1084
endpoint_id"49762299-66fd-4514-b0ee-c9e11e231e3b" 
provider_name"Moonshot AI" 
model_permaslug"moonshotai/kimi-k2.5-0127" 
api_type"completions" 
id"gen-1770566060-p8Hu3CukT8bqOGFb8NtM" 
upstream_id"chatcmpl-6988b1ad7d920b2a4b26e833" 
total_cost0.0100092
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
sentences12
wordCounts
010
110
210
310
410
510
610
710
810
910
1010
1110