NC Bench
Overview
About
Tests
Models
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
Messages
Meta
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_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
839
moderation_latency
(null)
generation_time
59929
tokens_prompt
35
tokens_completion
3011
native_tokens_prompt
42
native_tokens_completion
3041
native_tokens_completion_images
(null)
native_tokens_reasoning
2218
native_tokens_cached
42
num_media_prompt
(null)
num_input_audio_prompt
(null)
num_media_completion
0
num_search_results
(null)
origin
"https://ncbench.com/"
is_byok
false
finish_reason
"stop"
native_finish_reason
"stop"
usage
0.0091272
router
(null)
provider_responses
0
id
"chatcmpl-6988b4a7c5524a01aa16d3d3"
status
200
is_byok
false
latency
839
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_cost
0.0091272
cache_discount
0.000021
upstream_inference_cost
0
provider_name
"Moonshot AI"
Evaluation details
Result
Evaluator
Details
Meta Data
100.0000%
Matches word count
n/a
neededClean
false
sentences
5
wordCounts
0
20
1
20
2
20
3
20
4
20