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Run: 2026-04-25-01KQ2GBGJ77JZDT7B47TECW2FZ
Run Details
Model:
DeepSeek V4 Flash
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
2.4s
Cost:
$0.000042
Provider:
DeepSeek
Evaluation summary
Score
Evaluator
Details Link
0.00%
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 clock above the mantel chimed midnight, its echo swallowed by the sprawling, silent manor. Rain streaked the tall library windows, blurring the garden’s skeletal oaks into shadows. A single lamp cast amber light on the worn leather chair near the cold fireplace. Lord Ashworth’s body was slumped there, a silver letter opener buried in his chest. His spectacles lay shattered on the Persian rug, near a single, blood-smeared playing card. No one had entered the front door; the locks were still in place. Outside, the storm raged, but inside, an impossible stillness had claimed the room.
created_at
"2026-04-25T14:23:02.219Z"
4/25/2026, 2:23:02 PM
model
"deepseek/deepseek-v4-flash-20260423"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
536
moderation_latency
(null)
generation_time
2277
tokens_prompt
46
tokens_completion
150
native_tokens_prompt
39
native_tokens_completion
129
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
0.00004158
router
(null)
provider_responses
0
endpoint_id
"722e0746-2034-4d6e-a08f-e6271849ee9e"
id
"8a899118-f5b2-400a-9f73-5a77858d25ee"
is_byok
false
latency
274
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-1777126982-Rafypkr4ROeXBjY9TQ70"
session_id
(null)
api_type
"completions"
id
"gen-1777126982-zDJqeYjUPPqa6ip4OsjB"
upstream_id
"8a899118-f5b2-400a-9f73-5a77858d25ee"
total_cost
0.00004158
cache_discount
(null)
upstream_inference_cost
0
provider_name
"DeepSeek"
response_cache_source_id
(null)
Evaluation details
Result
Evaluator
Details
Meta Data
0.00%
Matches word count
n/a
neededClean
false
sentences
7
wordCounts
0
15
1
13
2
15
3
14
4
14
5
13
6
13