Run: 2026-04-25-01KQ2FGAJXNYNNG0CP5T72XRXG

Run Details

Duration:
1m 28s
Cost:
$0.002892
Provider:
DeepSeek

Evaluation summary

Score Evaluator
Details Link
100.00% 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 old mansion loomed darkly under the stormy night sky. A single light flickered in the library's tall arched window. Inside, Detective Crane examined the body with a grim frown. The victim was a wealthy recluse, stabbed through the heart. A crimson stain spread slowly across the Persian rug's silk. No weapon was seen; both doors were locked from inside. A faint scent of almonds lingered in the cold air. Crane muttered, "This is impossible, yet here it bloody lies."
created_at"2026-04-25T14:08:11.361Z" 4/25/2026, 2:08:11 PM
model"deepseek/deepseek-v4-pro-20260423"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency913
moderation_latency(null)
generation_time88040
tokens_prompt46
tokens_completion2784
native_tokens_prompt39
native_tokens_completion3305
native_tokens_completion_images(null)
native_tokens_reasoning3195
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"
usage0.002892315
router(null)
provider_responses
0
endpoint_id"d084170b-dd99-4e53-9ae1-b63881f3cfbf"
id"0f7290a8-3d40-4839-8a51-3a2cb672efe9"
is_byokfalse
latency274
model_permaslug"deepseek/deepseek-v4-pro-20260423"
provider_name"DeepSeek"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.1; linux; x64))"
http_referer(null)
request_id"req-1777126091-rSBsa7romhGEjznAcx5a"
session_id(null)
api_type"completions"
id"gen-1777126091-cwgPYnpjX1vV3ec0y3kB"
upstream_id"0f7290a8-3d40-4839-8a51-3a2cb672efe9"
total_cost0.002892315
cache_discount(null)
upstream_inference_cost0
provider_name"DeepSeek"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences8
wordCounts
010
110
210
310
410
510
610
710