Run: 2026-09-10-01M25DQSM8WFBCCT4QMX3MGPR7

Run Details

Duration:
9.5s
Cost:
$0.001285
Provider:
DeepSeek

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

Model response

AI
Rain hammered the silent street. A scream shattered the darkness. Detective Mara arrived too late. The mansion door stood open. Inside, a body lay still. Blood pooled beneath the piano. A candlestick held strange fingerprints. No footprints marked the carpet. The victim clutched a note. The note said, "Beware midnight." Mara checked the victim's pulse. There was no pulse now. The butler vanished too quickly. A clock chimed thirteen times. Somewhere upstairs, a floorboard creaked. Thunder masked a distant gunshot. Someone had planned this perfectly.
created_at"2026-09-10T10:27:42.348Z" 9/10/2026, 10:27:42 AM
model"deepseek/deepseek-v4.1-flash-20260910"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency775
moderation_latency(null)
generation_time9512
tokens_prompt46
tokens_completion2076
native_tokens_prompt65
native_tokens_completion2125
native_tokens_completion_images(null)
native_tokens_reasoning2002
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)
usage0.00128475
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer(null)
request_id"req-1789036062-ZYHUjHR55B0WIzgp5iKu"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1789036062-l95ar92VlVW0EBt1c37Z"
upstream_id"bb1cedcb-f53a-4948-bd1c-2a2e42414538"
provider_responses
0
endpoint_id"fd104bc8-535a-4d31-a847-a8e402e86a02"
id"bb1cedcb-f53a-4948-bd1c-2a2e42414538"
is_byokfalse
latency349
model_permaslug"deepseek/deepseek-v4.1-flash-20260910"
provider_name"DeepSeek"
status200
total_cost0.00128475
cache_discount(null)
upstream_inference_cost0
provider_name"DeepSeek"
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
sentences17
wordCounts
05
15
25
35
45
55
65
75
85
95
105
115
125
135
145
155
165