Run: 2026-04-25-01KQ2JV3FTD73KC72KMBBD5X0N

Run Details

Duration:
1.8s
Cost:
$0.000028
Provider:
DeepSeek

Evaluation summary

Score Evaluator
Details Link
78.40% 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 clock struck twelve, but the clock was wrong. Rain slicked cobblestones beneath a single gas lamp's glow. A silhouette stumbled, then crumpled near the iron fence. The butler found her first, umbrella dripping onto stone. Her heart-shaped locket lay open, empty, on the ground. No footsteps marked the wet earth except hers and his.
created_at"2026-04-25T15:06:30.27Z" 4/25/2026, 3:06:30 PM
model"deepseek/deepseek-v4-flash-20260423"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency544
moderation_latency(null)
generation_time1750
tokens_prompt46
tokens_completion91
native_tokens_prompt39
native_tokens_completion79
native_tokens_completion_images(null)
native_tokens_reasoning0
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"
usage0.00002758
router(null)
provider_responses
0
endpoint_id"722e0746-2034-4d6e-a08f-e6271849ee9e"
id"13cca7e4-247e-4b19-a23c-5330dc81883c"
is_byokfalse
latency271
model_permaslug"deepseek/deepseek-v4-flash-20260423"
provider_name"DeepSeek"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.1; linux; x64))"
http_referer(null)
request_id"req-1777129590-KXGpU9XfuQ28iNCEY3IS"
session_id(null)
api_type"completions"
id"gen-1777129590-1pPi83oGQzoTdO3ZZpNF"
upstream_id"13cca7e4-247e-4b19-a23c-5330dc81883c"
total_cost0.00002758
cache_discount(null)
upstream_inference_cost0
provider_name"DeepSeek"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
78.40% Matches word count n/a
neededCleanfalse
sentences6
wordCounts
09
19
29
39
49
510