Run: 2026-09-03-01M1KC7Y8SC63MCHAGJ6FDCXGX

Run Details

Model:
DeepSeek V4 Flash 0731 (Reasoning, High)
Test:
N-Length Sentences
Scenario:
Write sentences with 10 words each
Duration:
41.0s
Cost:
$0.000452
Provider:
DeepInfra

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

AI
The rain soaked the gravel drive as headlights approached slowly. Inside the manor, a grand clock struck eleven times loudly. Lady Ashworth descended the spiral staircase, her gown trailing behind. The butler waited by the door with a silver tray. A scream echoed from the library, then a sudden silence. He rushed to find his master collapsed upon the desk. The letter opener lay gleaming, stained with fresh crimson red. Outside, the storm thundered, drowning each whisper of secret truth.
created_at"2026-09-03T10:15:14.473Z" 9/3/2026, 10:15:14 AM
model"deepseek/deepseek-v4-flash-20260731"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency788
moderation_latency(null)
generation_time40984
tokens_prompt46
tokens_completion2210
native_tokens_prompt118
native_tokens_completion2461
native_tokens_completion_images(null)
native_tokens_reasoning2361
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"stop"
service_tier(null)
usage0.00045242
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.19.0; linux; x64))"
http_referer(null)
request_id"req-1788430514-Z4bJO8zgJdLMELzffMbQ"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1788430514-emvphf8JEvSwEJnva6Xz"
upstream_id"chatcmpl-R6Q7mGNgvX5SvSDLW1HAXddk"
provider_responses
0
endpoint_id"c1980fff-0a72-4bce-8d62-a7d3fc582200"
id"chatcmpl-R6Q7mGNgvX5SvSDLW1HAXddk"
is_byokfalse
latency72
model_permaslug"deepseek/deepseek-v4-flash-20260731"
provider_name"DeepInfra"
status200
total_cost0.00045242
cache_discount(null)
upstream_inference_cost0
provider_name"DeepInfra"
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
neededCleanfalse
sentences8
wordCounts
010
110
210
310
410
510
610
710