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Run: 2026-09-03-01M1KBQR7CV2K4RMS302Y560YN
Run Details
Model:
DeepSeek V4 Pro 0813 (Reasoning, High)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
1m 7s
Cost:
$0.024070
Provider:
NextBit
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 manor's grandfather clock struck midnight, its hollow chime swallowed by the storm's relentless howl and the frozen dark outside. Eleanor Vance stood alone in the library doorway, her trembling fingers clutching the brass handle as lightning split the sky. The room behind her was a wreck of overturned chairs, shattered glass, and scattered papers soaking in spilled crimson wine. A single candle guttered on the mantelpiece, casting long wavering shadows over the body slumped beneath the broken bay window. Inspector Hale knelt beside the dead man, noting the ornate silver dagger still buried deep between his left shoulder blades. No one had heard a scream above the thunder, and no servant could explain why the front door stood open. The victim was Lord Reginald Ashworth, a man whose enemies were as numerous as the rain-soaked miles surrounding his estate. Eleanor finally released the handle and stepped into the chaos, then whispered something that made the inspector turn around sharply. "He told me this morning," she said, her voice shaking, "that someone in this house would not survive the night." The inspector studied her face, then finally asked quietly if she had seen anyone enter before the body was found. Her eyes flicked toward the shattered window, and a strange smile slowly crossed her lips before she finally answered him. "No one entered," Eleanor whispered, "but I have known since tea that Lord Ashworth was already dead long before midnight."
created_at
"2026-09-03T10:06:24.002Z"
9/3/2026, 10:06:24 AM
model
"deepseek/deepseek-v4-pro-20260813"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
2578
moderation_latency
(null)
generation_time
67048
tokens_prompt
46
tokens_completion
6175
native_tokens_prompt
118
native_tokens_completion
6039
native_tokens_completion_images
(null)
native_tokens_reasoning
5739
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
0.0240702
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.19.0; linux; x64))"
http_referer
(null)
request_id
"req-1788429984-1UVeauQ2jjjONSuShKsc"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1788429984-jW5oIVSYtiBhw2SZhnf5"
upstream_id
"chatcmpl-nbda4224ce7ba54f0aa6f5f0e6"
provider_responses
0
endpoint_id
"ca5f0ff9-8764-4809-b5fa-968219bdfc4e"
id
"chatcmpl-nbda4224ce7ba54f0aa6f5f0e6"
is_byok
false
latency
2578
model_permaslug
"deepseek/deepseek-v4-pro-20260813"
provider_name
"NextBit"
status
200
total_cost
0.0240702
cache_discount
(null)
upstream_inference_cost
0
provider_name
"NextBit"
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
12
wordCounts
0
20
1
20
2
20
3
20
4
20
5
20
6
20
7
20
8
20
9
20
10
20
11
20