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Run: 2026-09-03-01M1KXK8HTTX2HT42R3J9AB9HC
Run Details
Model:
Hy4 Preview (Reasoning, High)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
2m 57s
Cost:
$0.032300
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 cold rain hammered the dark windows of Blackwood Manor as Inspector Hayes arrived at half past eleven that night. A single lamp burned in the upstairs study, its glow falling across the wet gravel driveway below the dark hill. The trembling housekeeper stood on the porch, her pale face streaked with rain as she waited impatiently for him there. Hayes climbed the steps, noting the mud on the marble tiles and the broken lock on the massive front door. Inside, the air smelled of smoke and parchment, and the grandfather clock had stopped at the hour of the murder. A body lay facedown on the Persian rug, a silver letter opener still cruelly buried deep in the victim's back. Hayes knelt beside the corpse, already knowing that this quiet, sleepy, little old village would never be the same again.
created_at
"2026-09-03T15:18:31.382Z"
9/3/2026, 3:18:31 PM
model
"tencent/hy4-preview-20260827"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1539
moderation_latency
(null)
generation_time
176674
tokens_prompt
46
tokens_completion
11935
native_tokens_prompt
56
native_tokens_completion
12896
native_tokens_completion_images
(null)
native_tokens_reasoning
12724
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
0.0322996
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.19.0; linux; x64))"
http_referer
(null)
request_id
"req-1788448711-IH9Lk2XDFY6oeMPMYk4o"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1788448711-AvgVzDwkgxx6ybRB4RH2"
upstream_id
"6af2ac50-6d55-4f1e-9f56-e88da87b6a9d"
provider_responses
0
endpoint_id
"ad2a4093-3d2a-41d9-adf1-8b499ac8445d"
id
"6af2ac50-6d55-4f1e-9f56-e88da87b6a9d"
is_byok
false
latency
1539
model_permaslug
"tencent/hy4-preview-20260827"
provider_name
"Tencent"
status
200
total_cost
0.0322996
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
7
wordCounts
0
20
1
20
2
20
3
20
4
20
5
20
6
20