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

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_id182717
external_user(null)
streamedtrue
cancelledfalse
latency811
moderation_latency(null)
generation_time43633
tokens_prompt35
tokens_completion2341
native_tokens_prompt42
native_tokens_completion2347
native_tokens_completion_images(null)
native_tokens_reasoning1833
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" 
usage0.0070452
router(null)
provider_responses
0
id"chatcmpl-6988b3d476a561cdea502537" 
status200
is_byokfalse
latency811
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_cost0.0070452
cache_discount0.000021
upstream_inference_cost0
provider_name"Moonshot AI" 

Evaluation details

Result Evaluator Details Meta Data
86.8844% Matches word count n/a
neededCleanfalse
sentences6
wordCounts
021
120
221
320
420
520