NC Bench
Overview
About
Tests
Categories
Models
Vendors
Compare
Run: 2026-09-10-01M25DP3EJABE0YQ6RRT01ZTJV
Run Details
Model:
DeepSeek V4.1 Flash (Reasoning, High)
Test:
N-Length Sentences
Scenario:
Write sentences with 10 words each
Duration:
6.6s
Cost:
$0.001782
Provider:
Novita
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
Rain hammered the window as Detective Mara entered the room. A dead man lay sprawled across the bloody Persian rug. His throat had been cut with a jagged, gleaming knife. Mara knelt beside him, checking quickly for any faint pulse. There was none, only the cold stillness of recent death. A single black orchid rested on his folded, bloodless hands. She frowned, recognizing the flower from a previous unsolved case. Behind her, the door clicked shut with a soft finality. She spun around, but the hallway stretched empty and silent. On the floor, a fresh note read: "You are next."
created_at
"2026-09-10T10:26:46.871Z"
9/10/2026, 10:26:46 AM
model
"deepseek/deepseek-v4.1-flash-20260910"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
963
moderation_latency
(null)
generation_time
6454
tokens_prompt
46
tokens_completion
1428
native_tokens_prompt
65
native_tokens_completion
1469
native_tokens_completion_images
(null)
native_tokens_reasoning
1341
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
0.0017823
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer
(null)
request_id
"req-1789036006-obdGjtHK1YzlrKob4rei"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1789036006-B3VwqqntXj9t9TcPStCd"
upstream_id
"9f3f71f07cd16370c0a71c717730dbdb"
provider_responses
0
endpoint_id
"519706ce-5bef-4de6-a755-71cc3c3ac632"
is_byok
false
latency
79
model_permaslug
"deepseek/deepseek-v4.1-flash-20260910"
provider_name
"DeepInfra"
status
429
1
endpoint_id
"dac120e6-b2d2-44d4-8698-07844c6b84da"
id
"9f3f71f07cd16370c0a71c717730dbdb"
is_byok
false
latency
446
model_permaslug
"deepseek/deepseek-v4.1-flash-20260910"
provider_name
"Novita"
status
200
total_cost
0.0017823
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Novita"
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
10
1
10
2
10
3
10
4
10
5
10
6
10
7
10
8
10
9
10