NC Bench
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Run: 2026-02-16-01KHM632GHH3VR19572HA0E3CR
Run Details
Model:
DeepSeek V3.1
Test:
N-Length Sentences
Scenario:
Write sentences with 10 words each
Duration:
4.3s
Cost:
$0.000146
Provider:
Novita
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 stood silent upon the rain-slicked hill. Detective Gray pulled his coat tighter against the chilling wind. He knew this call would not be a simple one. A single light burned in a top-floor window. The butler waited, his face a mask of stone. He led the detective through vast, echoing marble halls. They entered the library; the scene was perfectly still. Lord Ashworth lay dead beneath his own favorite portrait. A single, elegant dagger protruded from his chest. There was no sign of a struggle at all. The butler spoke, each word measured and precise. "Everyone was present when the power inexplicably failed, sir."
created_at
"2026-02-16T21:35:53.485841+00:00"
2/16/2026, 9:35:53 PM
model
"deepseek/deepseek-chat-v3.1"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
704
moderation_latency
(null)
generation_time
4098
tokens_prompt
65
tokens_completion
159
native_tokens_prompt
40
native_tokens_completion
135
native_tokens_completion_images
(null)
native_tokens_reasoning
0
native_tokens_cached
0
num_media_prompt
(null)
num_input_audio_prompt
(null)
num_media_completion
0
num_search_results
(null)
origin
"https://ncbench.com/"
is_byok
false
finish_reason
"stop"
native_finish_reason
"stop"
usage
0.0001458
router
(null)
provider_responses
0
status
429
is_byok
false
latency
51
endpoint_id
"012f7d1f-23d4-4d03-9aa3-432d8ad82757"
provider_name
"DeepInfra"
model_permaslug
"deepseek/deepseek-chat-v3.1"
1
id
"59cf9e4f-5504-4b17-917b-0721a779b95e"
status
200
is_byok
false
latency
704
endpoint_id
"715d05e1-9fa7-4ceb-834a-833f5e26a55a"
provider_name
"Novita"
model_permaslug
"deepseek/deepseek-chat-v3.1"
api_type
"completions"
id
"gen-1771277748-A25emct6DZc4CkDLJMAL"
upstream_id
"59cf9e4f-5504-4b17-917b-0721a779b95e"
total_cost
0.0001458
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Novita"
Evaluation details
Result
Evaluator
Details
Meta Data
73.2343%
Matches word count
n/a
neededClean
false
sentences
12
wordCounts
0
10
1
10
2
10
3
9
4
9
5
9
6
9
7
9
8
8
9
9
10
8
11
9