Model

MoonshotAI: Kimi K2.5

Test

N-Length Sentences

Scenario

Write sentences with 20 words each

Run ID

2026-02-08-01KGYYHF8Q94AXXZEKWVJK3T1M

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 chandelier flickered overhead as Lady Blackwood collapsed onto the Persian rug, her necklace scattering beads across the polished floor. Detective Miller stood frozen near the grand piano, his champagne glass hovering midway between the tray and his parted lips. Three hundred guests fell silent simultaneously, their festive masks suddenly grotesque against the backdrop of dying candles and whispered suspicions. Someone had finally silenced the hostess who threatened to reveal every dirty secret hidden within these gilded manor walls tonight. Miller knelt beside the body, noticing the thin trickle of blood beneath her diamond tiara and those vacant staring eyes. The orchestra had stopped playing, leaving only the ticking grandfather clock to mark time until justice would finally be served.
created_at"2026-02-08T15:40:37.231391+00:00" Sunday, February 8th, 2026 at 3:40:37 PM GMT+00:00
model"moonshotai/kimi-k2.5-0127" 
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency739
moderation_latency(null)
generation_time47882
tokens_prompt35
tokens_completion2474
native_tokens_prompt42
native_tokens_completion2511
native_tokens_completion_images(null)
native_tokens_reasoning1971
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" 
usage0.0075582
router(null)
provider_responses
0
id"chatcmpl-6988ae4587e031ddc5c57ac8" 
status200
is_byokfalse
latency739
endpoint_id"49762299-66fd-4514-b0ee-c9e11e231e3b" 
provider_name"Moonshot AI" 
model_permaslug"moonshotai/kimi-k2.5-0127" 
api_type"completions" 
id"gen-1770565188-7IoT5Be8Le7UF02RRL9i" 
upstream_id"chatcmpl-6988ae4587e031ddc5c57ac8" 
total_cost0.0075582
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
sentences6
wordCounts
020
120
220
320
420
520