Run: 2026-09-03-01M1KYCH821PH3E4WCQ8RNXA5C

Run Details

Duration:
4m 2s
Cost:
$0.045545
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 old grandfather clock in the dark hallway had just finished slowly striking midnight when the lights suddenly went out. Outside, the cold wind howled through the bare old trees and rain lashed against the tall windows of Ravenwood Manor. Detective Eleanor Vance stood in the grand empty foyer, shaking water from her coat as thunder rolled above the house. She had been summoned to the remote estate by a frantic telephone call from the manor's owner, Mister Alistair Gray. The message had been brief and very strange, warning of a terrible crime that would happen before the night ended. A nervous butler with trembling hands led her down a long corridor filled with many old portraits of stern ancestors. He stopped before a heavy oak door and whispered that the master was anxiously waiting inside with the other guests. Eleanor pushed the door open and stepped into a warm lamplit room where several tense faces slowly turned toward her. In the center of the room, a crystal chandelier cast flickering light across a Persian rug and a small table. Upon that table lay an open leather ledger, a silver candlestick, and a glass half full of deep red wine. But it was the motionless figure slumped in the tall wooden chair beside the fireplace that held everyone's terrified attention. Alistair Gray sat motionless with his head tilted strangely back, a single crimson wound marking his cold pale waxen forehead. There was very little blood on his snowy shirtfront, yet the room felt heavy with sudden unspoken fear and suspicion. Five guests sat frozen around the dim room, their eyes nervously darting from the body to one another in silence. Eleanor recognized the local doctor, a famous young actress, a retired colonel, and a very quiet nervous lawyer among them. She stepped closer to the body and asked in a calm voice who had found him in exactly that way. The doctor cleared his own throat nervously and said that he had discovered the body only minutes before her arrival. The colonel loudly protested that all the heavy doors had been locked from the inside since early dinner was served. Eleanor noticed a small smear of blood on the dead man's cuff and a torn note in his clenched hand. She looked at the frightened faces around her and knew that a long, dark, dangerous night had already truly begun.
created_at"2026-09-03T15:32:19.344Z" 9/3/2026, 3:32:19 PM
model"tencent/hy4-preview-20260827"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1544
moderation_latency(null)
generation_time241695
tokens_prompt46
tokens_completion16560
native_tokens_prompt56
native_tokens_completion18192
native_tokens_completion_images(null)
native_tokens_reasoning17710
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)
usage0.045544896
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.19.0; linux; x64))"
http_referer(null)
request_id"req-1788449539-chidamSdd9WoSF8kNPbB"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1788449539-8yc3kHDSqSBhFM16nCSc"
upstream_id"093c5b73-d228-4c2b-acc1-40c44c8f944a"
provider_responses
0
endpoint_id"ad2a4093-3d2a-41d9-adf1-8b499ac8445d"
id"093c5b73-d228-4c2b-acc1-40c44c8f944a"
is_byokfalse
latency1544
model_permaslug"tencent/hy4-preview-20260827"
provider_name"Tencent"
status200
total_cost0.045544896
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
sentences20
wordCounts
020
120
220
320
420
520
620
720
820
920
1020
1120
1220
1320
1420
1520
1620
1720
1820
1920