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Run: 2026-09-03-01M1KZND366787PFV43ZRF0V27
Run Details
Model:
Hy4 Preview (Reasoning, High)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
1m 47s
Cost:
$0.020705
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
Messages
Meta
AI
The old grandfather clock in the hallway of Ravenwood Manor chimed midnight as rain lashed the darkened leaded windows relentlessly. A single candle flickered on the mahogany table beside the empty leather armchair in the study at the hall's end. Lord Edwin Ashworth lay facedown on the Persian rug beside the cold hearth, a silver letter opener in his back. A brimming glass of amber whiskey sat untouched on the desk beside a scattered deck of cards near the window. Detective Inspector Clara Hayes knelt beside the body, her sharp eyes absorbing every meticulous detail of the scene with precision. The heavy oak door stood slightly ajar, and a draught stirred the curtains like restless ghosts in the gloomy room. Somewhere beyond the thunder, a dog howled, and the storm seemed to hold its breath in mournful anticipation of death. Clara rose slowly, her gloved hands resting lightly on the pockets of her long black coat, her mind already working. The murdered lord's trembling housekeeper stood in the doorway, her pale face blotched with tears and terror at the scene. She twisted a linen handkerchief between her fingers and whispered she had found him exactly like this only moments ago.
created_at
"2026-09-03T15:54:38.575Z"
9/3/2026, 3:54:38 PM
model
"tencent/hy4-preview-20260827"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1345
moderation_latency
(null)
generation_time
107319
tokens_prompt
46
tokens_completion
7765
native_tokens_prompt
56
native_tokens_completion
8260
native_tokens_completion_images
(null)
native_tokens_reasoning
8006
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
0.020704964
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.19.0; linux; x64))"
http_referer
(null)
request_id
"req-1788450878-m4BgkrJ85k5ltrHIOj1h"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1788450878-pzMhxOdxD2AOjPzf4bDH"
upstream_id
"b121bc77-31ac-4ebd-94db-e8e617e8f6fa"
provider_responses
0
endpoint_id
"ad2a4093-3d2a-41d9-adf1-8b499ac8445d"
id
"b121bc77-31ac-4ebd-94db-e8e617e8f6fa"
is_byok
false
latency
1345
model_permaslug
"tencent/hy4-preview-20260827"
provider_name
"Tencent"
status
200
total_cost
0.020704964
cache_discount
(null)
upstream_inference_cost
0
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
neededClean
false
sentences
10
wordCounts
0
20
1
20
2
20
3
20
4
20
5
20
6
20
7
20
8
20
9
20