Model

MoonshotAI: Kimi K2.5

Test

N-Length Sentences

Scenario

Write sentences with 20 words each

Run ID

2026-02-08-01KGYZQBT4NXG9D2R5HSDCAETX

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 conservatory windows while Lady Margaret stared at the crimson stain spreading across her antique Persian wool rug. Detective Inspector Blake entered quietly, his boots squeaking on the marble floor as he observed the shattered crystal champagne flute. "Suicide," muttered the constable near the door, though the victim's hands clutched a silver dagger with the monogram clearly reversed. Outside, thunder rolled across the moorland while inside the library someone erased the final entry in the leather guest book. Lady Margaret touched the dagger handle and whispered that the killer remained among us, hiding behind masks of proper grief.
created_at"2026-02-08T16:01:40.03617+00:00" Sunday, February 8th, 2026 at 4:01:40 PM GMT+00:00
model"moonshotai/kimi-k2.5-0127" 
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency9780
moderation_latency(null)
generation_time68773
tokens_prompt35
tokens_completion2994
native_tokens_prompt42
native_tokens_completion3001
native_tokens_completion_images(null)
native_tokens_reasoning2432
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" 
usage0.0090072
router(null)
provider_responses
0
id"chatcmpl-6988b31e0fb687aa99a26ab4" 
status200
is_byokfalse
latency9780
endpoint_id"49762299-66fd-4514-b0ee-c9e11e231e3b" 
provider_name"Moonshot AI" 
model_permaslug"moonshotai/kimi-k2.5-0127" 
api_type"completions" 
id"gen-1770566430-wsBMRhcuFfNEkzc3D2qN" 
upstream_id"chatcmpl-6988b31e0fb687aa99a26ab4" 
total_cost0.0090072
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