Model

MoonshotAI: Kimi K2.5

Test

N-Length Sentences

Scenario

Write sentences with 20 words each

Run ID

2026-02-08-01KGZ03BAXANCEPYY1MK8BDEM9

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 against the windows of Blackwood Manor as Detective Sarah Chen stepped over the threshold into the foyer. Lord Blackwood's body lay sprawled across the antique Persian carpet with a silver dagger protruding from his fine silk waistcoat. Three suspects huddled near the fireplace, their faces pale and their eyes avoiding the gruesome scene before them right now. "Nobody leaves this room until I discover who plunged that blade into the viscount's cold heart," she declared very firmly. Outside, thunder crashed as the storm intensified, trapping them all together with a killer who might strike once more tonight.
created_at"2026-02-08T16:08:04.122635+00:00" Sunday, February 8th, 2026 at 4:08:04 PM GMT+00:00
model"moonshotai/kimi-k2.5-0127" 
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency839
moderation_latency(null)
generation_time59929
tokens_prompt35
tokens_completion3011
native_tokens_prompt42
native_tokens_completion3041
native_tokens_completion_images(null)
native_tokens_reasoning2218
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" 
usage0.0091272
router(null)
provider_responses
0
id"chatcmpl-6988b4a7c5524a01aa16d3d3" 
status200
is_byokfalse
latency839
endpoint_id"49762299-66fd-4514-b0ee-c9e11e231e3b" 
provider_name"Moonshot AI" 
model_permaslug"moonshotai/kimi-k2.5-0127" 
api_type"completions" 
id"gen-1770566823-qkuCsoacgs6Iog3PeMw7" 
upstream_id"chatcmpl-6988b4a7c5524a01aa16d3d3" 
total_cost0.0091272
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