Run: 2026-04-25-01KQ2EDSNEKQB9BKT4VS8NZWAT

Run Details

Duration:
2.5s
Cost:
$0.000043
Provider:
DeepSeek

Evaluation summary

Score Evaluator
Details Link
70.28% 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
The library clock struck midnight's chime. Silence fell like a velvet shroud. A body lay before the fireplace. Blood pooled beneath the elderly earl. His monocle shattered on the rug. The only witness was a cat. Its green eyes watched the doorway. A single glove lay near the desk. Someone had left a hurried note. It read only: "Revenge is served."
created_at"2026-04-25T13:49:19.922Z" 4/25/2026, 1:49:19 PM
model"deepseek/deepseek-v4-flash-20260423"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency567
moderation_latency(null)
generation_time2081
tokens_prompt46
tokens_completion150
native_tokens_prompt39
native_tokens_completion135
native_tokens_completion_images(null)
native_tokens_reasoning46
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"
usage0.00004326
router(null)
provider_responses
0
endpoint_id"722e0746-2034-4d6e-a08f-e6271849ee9e"
id"796eb4ed-bcf1-4015-bd15-086cb19e0e58"
is_byokfalse
latency273
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-1777124959-1oP9u0R6MrLbm2bD8hX6"
session_id(null)
api_type"completions"
id"gen-1777124959-r06TkJ7sdKgXllHxjLzO"
upstream_id"796eb4ed-bcf1-4015-bd15-086cb19e0e58"
total_cost0.00004326
cache_discount(null)
upstream_inference_cost0
provider_name"DeepSeek"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
70.28% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
06
16
26
36
46
56
66
77
86
96