Run: 2026-09-03-01M1KBAMSKQSPM63XT9JK6WYDY

Run Details

Model:
DeepSeek V4 Flash 0731 (Reasoning, High)
Test:
N-Length Sentences
Scenario:
Write sentences with 10 words each
Duration:
38.7s
Cost:
$0.000435
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 old grandfather clock chimed twice, then fell silent forever. In the library, a body lay sprawled across the rug. Detective Marlowe studied the room with narrowed, piercing grey eyes. The victim's cold hand clutched a torn photograph of someone. No forced entry, no weapon, no signs of any struggle. Then the butler's alibi collapsed like a house of cards.
created_at"2026-09-03T09:59:14.498Z" 9/3/2026, 9:59:14 AM
model"deepseek/deepseek-v4-flash-20260731"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency511
moderation_latency(null)
generation_time38365
tokens_prompt46
tokens_completion1923
native_tokens_prompt118
native_tokens_completion2366
native_tokens_completion_images(null)
native_tokens_reasoning2278
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)
usage0.00043532
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.19.0; linux; x64))"
http_referer(null)
request_id"req-1788429554-n3BuOFsE50615kNlpPoW"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1788429554-Ot1kvqdUDKBQ7GCTYpj0"
upstream_id"chatcmpl-RJUGaXcfrRDn1aVBhxxMrX7W"
provider_responses
0
endpoint_id"4d5286fc-8f37-40c2-a518-e1ae100d45fc"
is_byokfalse
latency93
model_permaslug"deepseek/deepseek-v4-flash-20260731"
provider_name"Wafer"
status429
1
endpoint_id"f954a48e-1c90-433b-9348-4720f8030331"
is_byokfalse
latency209
model_permaslug"deepseek/deepseek-v4-flash-20260731"
provider_name"OpenInference"
status429
2
endpoint_id"c1980fff-0a72-4bce-8d62-a7d3fc582200"
id"chatcmpl-RJUGaXcfrRDn1aVBhxxMrX7W"
is_byokfalse
latency239
model_permaslug"deepseek/deepseek-v4-flash-20260731"
provider_name"DeepInfra"
status200
total_cost0.00043532
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
sentences6
wordCounts
010
110
210
310
410
510