Run: 2026-04-25-01KQ2E601WQTHPFH5WGBY8DV75

Run Details

Duration:
2.3s
Cost:
$0.000033
Provider:
DeepSeek

Evaluation summary

Score Evaluator
Details Link
0.01% 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 rain-soaked asphalt gleamed under flickering streetlamps as a single umbrella billowed past. A rusted gate groaned open, then hung still, inviting an unseen visitor inside. The library’s grandfather clock struck twelve, its chime swallowed by a sudden, coughing silence. On the Persian rug, a crystal decanter lay shattered, amber liquid pooling like a frozen scream. The body was crumpled near the fireplace, one hand still reaching for the unlit matchstick.
created_at"2026-04-25T13:45:04.319Z" 4/25/2026, 1:45:04 PM
model"deepseek/deepseek-v4-flash-20260423"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency784
moderation_latency(null)
generation_time2193
tokens_prompt46
tokens_completion117
native_tokens_prompt39
native_tokens_completion98
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"
usage0.0000329
router(null)
provider_responses
0
endpoint_id"722e0746-2034-4d6e-a08f-e6271849ee9e"
id"b319d5cc-0ee6-4884-9605-fe7e82734769"
is_byokfalse
latency503
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-1777124704-J0vgCRg3TngqGunsoIA2"
session_id(null)
api_type"completions"
id"gen-1777124704-ScP7A5hbYOs8hg8suwL4"
upstream_id"b319d5cc-0ee6-4884-9605-fe7e82734769"
total_cost0.0000329
cache_discount(null)
upstream_inference_cost0
provider_name"DeepSeek"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
0.01% Matches word count n/a
neededCleanfalse
sentences5
wordCounts
013
113
214
316
415