Run: 2026-09-03-01M1KAQGQAAF47QRZ9E1TAJ585

Run Details

Model:
DeepSeek V4 Flash 0731 (Reasoning, High)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
3m 18s
Cost:
$0.000495
Provider:
Inceptron

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 20 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
The manor's grand library lay silent, its marble floor cold beneath my trembling feet, and the air tasted of iron. I crossed the threshold, and my eyes found the body sprawled across the Persian rug in a pool of crimson. Lord Ashworth lay face-down, his hand still clenched around a silver letter opener, the blade stained with dried dark blood. I knew the murderer was still here, hiding among the shadows, and I dared not breathe even a single one.
created_at"2026-09-03T09:48:47.736Z" 9/3/2026, 9:48:47 AM
model"deepseek/deepseek-v4-flash-20260731"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1107
moderation_latency(null)
generation_time197609
tokens_prompt46
tokens_completion1626
native_tokens_prompt39
native_tokens_completion1749
native_tokens_completion_images(null)
native_tokens_reasoning1510
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)
usage0.00049479
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.19.0; linux; x64))"
http_referer(null)
request_id"req-1788428927-a2OllQ0fGWTPDgjsGd4d"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1788428927-DrCa7Ah4qeK7MimjlbJe"
upstream_id"chatcmpl-96eb468b83d7ee97f4ab56514615eb18"
provider_responses
0
endpoint_id"89e67dfe-8499-4a5c-a1eb-2baf0e8d63ee"
id"chatcmpl-96eb468b83d7ee97f4ab56514615eb18"
is_byokfalse
latency462
model_permaslug"deepseek/deepseek-v4-flash-20260731"
provider_name"Inceptron"
status200
total_cost0.00049479
cache_discount(null)
upstream_inference_cost0
provider_name"Inceptron"
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
sentences4
wordCounts
020
120
220
320