Run: 2026-10-27-01M5YEPN14VSNK2RXXNC3X2DHP

Run Details

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

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_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1740
moderation_latency(null)
generation_time102183
tokens_prompt46
tokens_completion3239
native_tokens_prompt120
native_tokens_completion3156
native_tokens_completion_images(null)
native_tokens_reasoning2929
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"stop"
service_tier(null)
usage0.0318
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_byokfalse
latency1740
model_permaslug"moonshotai/kimi-k3.1-pro-20261023"
provider_name"Moonshot AI"
status200
total_cost0.0318
cache_discount(null)
upstream_inference_cost0
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
neededCleanfalse
sentences9
wordCounts
020
120
220
320
420
520
620
720
820