Run: 2026-09-03-01M1M0T4RYXK174AYS5HWG5GDC

Run Details

Duration:
2m 2s
Cost:
$0.022943
Provider:
Tencent

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 ancient clock in the dark hallway struck midnight just as the fierce storm outside at last began to rage. Cold rain lashed the tall windows of Ravenwood Manor while the nervous guests gathered quietly in the dim library downstairs. A single candle burned low beside the empty velvet chair near the grand cold marble fireplace at the far end. Mr. Alistair Vance, the wealthy, secretive, and mysterious host, had promised an important announcement before the very long evening ended. No one in the crowded room noticed when he quietly slipped away from the lively conversation and then disappeared upstairs. That was the very last time anyone would later claim to have seen Alistair Vance alive and still breathing well. A sudden piercing scream shattered the quiet old house and sent every terrified guest rushing immediately toward the grand staircase. They found him lying facedown on the expensive Persian rug with a cold bloodstained silver letter opener still beside him. The heavy oak door to the study was locked from the inside, and all the tall windows were sealed tight. Outside, the fierce storm raged on as Detective Eleanor Gray stepped into the dark room for the very first time.
created_at"2026-09-03T16:14:42.472Z" 9/3/2026, 4:14:42 PM
model"tencent/hy4-preview-20260827"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2876
moderation_latency(null)
generation_time121673
tokens_prompt46
tokens_completion8845
native_tokens_prompt56
native_tokens_completion9155
native_tokens_completion_images(null)
native_tokens_reasoning8918
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)
usage0.022943359
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.19.0; linux; x64))"
http_referer(null)
request_id"req-1788452082-myGo1UmSZLBYGAl5cB2t"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1788452082-QdzisMUfmBkG2pS8xyUQ"
upstream_id"2a9c1e46-13fe-43d3-8bf3-93ffd921400e"
provider_responses
0
endpoint_id"ad2a4093-3d2a-41d9-adf1-8b499ac8445d"
id"2a9c1e46-13fe-43d3-8bf3-93ffd921400e"
is_byokfalse
latency2876
model_permaslug"tencent/hy4-preview-20260827"
provider_name"Tencent"
status200
total_cost0.022943359
cache_discount(null)
upstream_inference_cost0
provider_name"Tencent"
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
sentences10
wordCounts
020
120
220
320
420
520
620
720
820
920