Model

MoonshotAI: Kimi K2.5

Test

N-Length Sentences

Scenario

Write sentences with 20 words each

Run ID

2026-02-08-01KGZ03245VMYCTPWDST66DNN0

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 hammered against the stained glass windows of the old manor house on the night of the charity gala. Inspector Marlowe knelt beside the victim while rain continued drumming against the tall windows of the crowded main drawing room. Blood pooled beneath the crystal chandelier, reflecting fractured light onto the walls like some macabre kaleidoscope of sudden violent death. "Nobody leaves this room," he announced to the terrified guests huddled together near the roaring fireplace in the east corner. Lady Westingford clutched her pearls, her face pale as the marble statue standing guard in the adjacent marble foyer beyond. The victim's champagne glass remained half full on the sideboard, untouched by the chaos that erupted mere moments ago tonight. Someone had poisoned the Duke during dinner, yet every person present claimed complete innocence with perfect and quite solid alibis. Marlowe leaned toward the corpse, noticing the faint blue tint around the dead lips and the strangely missing signet ring.
created_at"2026-02-08T16:09:18.629709+00:00" Sunday, February 8th, 2026 at 4:09:18 PM GMT+00:00
model"moonshotai/kimi-k2.5-0127" 
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency811
moderation_latency(null)
generation_time144315
tokens_prompt35
tokens_completion7067
native_tokens_prompt42
native_tokens_completion7082
native_tokens_completion_images(null)
native_tokens_reasoning6325
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" 
usage0.0212502
router(null)
provider_responses
0
id"chatcmpl-6988b49eb4492437b56d67a2" 
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-1770566813-3YTuwosngfKOOhgQt69q" 
upstream_id"chatcmpl-6988b49eb4492437b56d67a2" 
total_cost0.0212502
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
sentences8
wordCounts
020
120
220
320
420
520
620
720