Run: 2026-04-25-01KQ2JSC4EEFFRAKFV4D5C3EPB

Run Details

Duration:
2.9s
Cost:
$0.000043
Provider:
DeepSeek

Evaluation summary

Score Evaluator
Details Link
69.16% 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 gleamed under the dim streetlight. A woman's scream pierced the quiet midnight air. Detective Harding paused, his coffee cup halfway to his lips. He turned toward the sound, dread pooling in his stomach. The alley yawned darkly between two shadowed brick buildings. A single leather glove lay crumpled near the gutter. Harding approached slowly, his footsteps echoing on wet stone. The body was propped against a rain-soaked wall. A crimson ribbon trailed from her pale, still wrist. He knelt, noting the absence of any visible wounds. Above, a flickering neon sign hummed its weary, broken song.
created_at"2026-04-25T15:05:33.586Z" 4/25/2026, 3:05:33 PM
model"deepseek/deepseek-v4-flash-20260423"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency618
moderation_latency(null)
generation_time2844
tokens_prompt46
tokens_completion157
native_tokens_prompt39
native_tokens_completion135
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"
usage0.00004326
router(null)
provider_responses
0
endpoint_id"722e0746-2034-4d6e-a08f-e6271849ee9e"
id"11c0c465-5c88-4ed0-9d5f-47c4da964b1c"
is_byokfalse
latency272
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-1777129533-ZdQHT6LRVp8GXEagM5fL"
session_id(null)
api_type"completions"
id"gen-1777129533-Dwo4cl790dylQ44YjvlM"
upstream_id"11c0c465-5c88-4ed0-9d5f-47c4da964b1c"
total_cost0.00004326
cache_discount(null)
upstream_inference_cost0
provider_name"DeepSeek"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
69.16% Matches word count n/a
neededCleanfalse
sentences11
wordCounts
08
18
210
310
49
59
69
78
89
99
1010