Run: 2026-04-25-01KQ2E6E49DXYM6CJ11PWNY5KM

Run Details

Duration:
3.2s
Cost:
$0.000052
Provider:
DeepSeek

Evaluation summary

Score Evaluator
Details Link
36.57% 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 street gleamed under a single streetlight. A shadow moved, then vanished into the alley. Detective Marlowe arrived at the silent crime scene. The body lay crumpled near the rusted iron grate. A single red rose rested on the chest. No sign of struggle, no footprints in the mud. The victim's eyes stared at the dark sky. Marlowe knelt and checked for a pulse, none. The only sound was the dripping of rain. He whispered, "This is just the beginning."
created_at"2026-04-25T13:45:18.734Z" 4/25/2026, 1:45:18 PM
model"deepseek/deepseek-v4-flash-20260423"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency606
moderation_latency(null)
generation_time2539
tokens_prompt46
tokens_completion182
native_tokens_prompt39
native_tokens_completion165
native_tokens_completion_images(null)
native_tokens_reasoning58
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"
usage0.00005166
router(null)
provider_responses
0
endpoint_id"722e0746-2034-4d6e-a08f-e6271849ee9e"
id"8c9bcbae-e3d1-4eee-9cee-d1f71658cb00"
is_byokfalse
latency274
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-1777124718-EiazKQTk82ZIhctsGVmR"
session_id(null)
api_type"completions"
id"gen-1777124718-BzlDZfKK5O8Z42Eb1RoO"
upstream_id"8c9bcbae-e3d1-4eee-9cee-d1f71658cb00"
total_cost0.00005166
cache_discount(null)
upstream_inference_cost0
provider_name"DeepSeek"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
36.57% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
08
18
28
39
48
59
68
78
88
97