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Run: 2026-10-27-01M5YEPN14VSNK2RXXNC3X2DHP
Run Details
Model:
Kimi K3.1 Pro (Reasoning, Max)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
1m 42s
Cost:
$0.031800
Provider:
Moonshot AI
Evaluation summary
Score
Evaluator
Details Link
100.00%
Matches word count
(details)
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 stopped at midnight, leaving Blackthorn House shining beneath the moon like a long silver blade freshly wiped clean. Detective Mara Venn arrived alone, because the village constable had refused to drive beyond the locked iron gates that night. She found the front door open and a single wet footprint glistening on the threshold, pointed toward the darkness within. Inside, the grandfather clock ticked steadily, though every other clock in the house had stopped precisely at eleven forty three. In the library, Sir Julian Blackthorn sat beside the cold fireplace, his silk dressing gown still soaked darkly with blood. A silver letter opener protruded from his chest, and his right hand enclosed a black piece shaped like a queen. Mara did not touch the body; she was watching the white queen standing upright beside the library window behind him. Its crown was wet with red paint, unless the liquid dripping onto the sill was something far thicker and darker. Then the clock faltered, a floorboard sighed above her, and somewhere upstairs a woman began laughing softly in the dark.
created_at
"2026-10-27T10:32:39.727Z"
10/27/2026, 10:32:39 AM
model
"moonshotai/kimi-k3.1-pro-20261023"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1740
moderation_latency
(null)
generation_time
102183
tokens_prompt
46
tokens_completion
3239
native_tokens_prompt
120
native_tokens_completion
3156
native_tokens_completion_images
(null)
native_tokens_reasoning
2929
native_tokens_cached
0
num_media_prompt
(null)
num_input_audio_prompt
(null)
num_media_completion
0
num_search_results
(null)
num_fetches
(null)
web_search_engine
(null)
origin
"https://ncbench.com/"
is_byok
false
finish_reason
"stop"
native_finish_reason
"stop"
service_tier
(null)
usage
0.0318
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.22.1; linux; x64))"
http_referer
(null)
request_id
"req-1793097159-u6f2j8RvTnZfalvkPfZX"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1793097159-oM3bZmFWIvoClnsVZ0J2"
upstream_id
"chatcmpl-6ae07dc807ae37d6f7a4b869"
provider_responses
0
endpoint_id
"a3fafaac-f097-4ef1-86b3-842854dad5c6"
id
"chatcmpl-6ae07dc807ae37d6f7a4b869"
is_byok
false
latency
1740
model_permaslug
"moonshotai/kimi-k3.1-pro-20261023"
provider_name
"Moonshot AI"
status
200
total_cost
0.0318
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Moonshot AI"
response_cache_source_id
(null)
data_region
"global"
workspace_id
"97e315e5-d303-487d-83c1-83180e8a13d4"
Evaluation details
Result
Evaluator
Details
Meta Data
100.00%
Matches word count
n/a
neededClean
false
sentences
9
wordCounts
0
20
1
20
2
20
3
20
4
20
5
20
6
20
7
20
8
20