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Run: 2026-09-03-01M1KYTB7FBWTYV2Z8KPH3FXRH
Run Details
Model:
Hy4 Preview (Reasoning, High)
Test:
N-Length Sentences
Scenario:
Write sentences with 10 words each
Duration:
2m 3s
Cost:
$0.021315
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 10 words. Please make sure that each sentence has the same length. Only return the opening itself.
Model response
Messages
Meta
AI
The old mansion loomed silent beneath a bruised night sky. Rain tapped softly on the dusty windows of the library. Inside, a dying fire crackled in the wide marble hearth. Six guests sat in an uneasy circle near the flames. At the head of the long table sat Lord Blackwood. His eyes were closed, his face as pale as paper. A crystal glass lay shattered on the polished wooden floor. Red wine spread beneath his chair like a dark warning. No one spoke as the loud mantel clock chimed midnight. The distant storm outside echoed the tension within the room. Detective Eleanor Vance stepped through the heavy oak front doors. Her sharp eyes swept over the shaken group of suspects. "Lord Blackwood is dead," she said in a calm voice. A woman gasped, and someone knocked over a silver candlestick. The storm raged on as the long investigation finally began. Outside, distant thunder crashed across the dark, empty, windswept moor. One of them was a killer, and morning felt distant.
created_at
"2026-09-03T15:39:51.93Z"
9/3/2026, 3:39:51 PM
model
"tencent/hy4-preview-20260827"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1067
moderation_latency
(null)
generation_time
122840
tokens_prompt
46
tokens_completion
7750
native_tokens_prompt
56
native_tokens_completion
8504
native_tokens_completion_images
(null)
native_tokens_reasoning
8287
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
0.021315208
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.19.0; linux; x64))"
http_referer
(null)
request_id
"req-1788449991-lWzmiy9cUiRA9Cf98YtD"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1788449991-il4SmCJzxpnaU8lxFyJh"
upstream_id
"3c34a887-4618-4f1d-8c37-11b102fc8946"
provider_responses
0
endpoint_id
"ad2a4093-3d2a-41d9-adf1-8b499ac8445d"
id
"3c34a887-4618-4f1d-8c37-11b102fc8946"
is_byok
false
latency
1066
model_permaslug
"tencent/hy4-preview-20260827"
provider_name
"Tencent"
status
200
total_cost
0.021315208
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
17
wordCounts
0
10
1
10
2
10
3
10
4
10
5
10
6
10
7
10
8
10
9
10
10
10
11
10
12
10
13
10
14
10
15
10
16
10