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Run: 2026-04-25-01KQ2E2PE6CJS7TB5JAV9FBM0B
Run Details
Model:
DeepSeek V4 Flash
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
2.3s
Cost:
$0.000036
Provider:
DeepSeek
Evaluation summary
Score
Evaluator
Details Link
0.01%
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 antique grandfather clock struck eleven, its bronze pendulum swaying like a judgmental pendulum. Rain lashed the stained-glass window, distorting the garden’s silhouette into a watery bruise. A single leather glove lay upon the hearth, its fingers curled as if grasping for air. The body was discovered when the housekeeper entered with a tray of tea. Professor Ashworth’s monocle had shattered beside his outstretched, unmoving, elegant hand. A half-finished letter whispered secrets from the desk, ink bleeding into the grain.
created_at
"2026-04-25T13:43:16.17Z"
4/25/2026, 1:43:16 PM
model
"deepseek/deepseek-v4-flash-20260423"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
563
moderation_latency
(null)
generation_time
2262
tokens_prompt
46
tokens_completion
135
native_tokens_prompt
39
native_tokens_completion
109
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)
num_fetches
(null)
web_search_engine
(null)
origin
"https://ncbench.com/"
is_byok
false
finish_reason
"stop"
native_finish_reason
"stop"
usage
0.00003598
router
(null)
provider_responses
0
endpoint_id
"722e0746-2034-4d6e-a08f-e6271849ee9e"
id
"4d9e061d-8990-4551-8269-69cb4d8d69ef"
is_byok
false
latency
273
model_permaslug
"deepseek/deepseek-v4-flash-20260423"
provider_name
"DeepSeek"
status
200
user_agent
"langchainjs-openai/1.0.0 ((node/v24.14.1; linux; x64))"
http_referer
(null)
request_id
"req-1777124596-rU2M3mCuloNocZSXJXY6"
session_id
(null)
api_type
"completions"
id
"gen-1777124596-C65ifbKPej9xsfhiGy5u"
upstream_id
"4d9e061d-8990-4551-8269-69cb4d8d69ef"
total_cost
0.00003598
cache_discount
(null)
upstream_inference_cost
0
provider_name
"DeepSeek"
response_cache_source_id
(null)
Evaluation details
Result
Evaluator
Details
Meta Data
0.01%
Matches word count
n/a
neededClean
false
sentences
6
wordCounts
0
14
1
13
2
16
3
13
4
11
5
13