Run: 2026-04-25-01KQ2E3X5SDW1RSNJGWJMFWXS6

Run Details

Duration:
1.5s
Cost:
$0.000025
Provider:
DeepSeek

Evaluation summary

Score Evaluator
Details Link
75.66% 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 rain slicked cobblestones under a flickering gaslight. A black carriage stopped, its horses snorting white steam. Inside, a man’s hand fell limp from a hidden blade. The driver climbed down, his boots splashing in puddles. He stared at the crimson trail seeping beneath the door.
created_at"2026-04-25T13:43:55.837Z" 4/25/2026, 1:43:55 PM
model"deepseek/deepseek-v4-flash-20260423"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency535
moderation_latency(null)
generation_time1270
tokens_prompt46
tokens_completion77
native_tokens_prompt39
native_tokens_completion70
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"
usage0.00002506
router(null)
provider_responses
0
endpoint_id"722e0746-2034-4d6e-a08f-e6271849ee9e"
id"5907512a-68cf-4c3e-81bc-a62d3b993c45"
is_byokfalse
latency278
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-1777124635-HnfvJvFVPgk5jcUnphxl"
session_id(null)
api_type"completions"
id"gen-1777124635-vS4nUXbTJVr9FU4Wmrz0"
upstream_id"5907512a-68cf-4c3e-81bc-a62d3b993c45"
total_cost0.00002506
cache_discount(null)
upstream_inference_cost0
provider_name"DeepSeek"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
75.66% Matches word count n/a
neededCleanfalse
sentences5
wordCounts
08
19
210
39
410