Run: 2026-04-25-01KQ2DQ3HJ7FTX3W332MFMAGX5

Run Details

Duration:
1.6s
Cost:
$0.000028
Provider:
DeepSeek

Evaluation summary

Score Evaluator
Details Link
92.63% Matches word count (details)

Model input

User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 5 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
The study smelled of old books. A body lay behind the desk. Its eyes were wide open. A single bullet wound showed. The clock had stopped at nine. Rain tapped against the windowpane. Detective Marlowe entered the room. He knelt beside the corpse. No murder weapon was visible. Someone had moved the vase. The floor held fresh footprints. This case would not be easy.
created_at"2026-04-25T13:36:56.406Z" 4/25/2026, 1:36:56 PM
model"deepseek/deepseek-v4-flash-20260423"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency469
moderation_latency(null)
generation_time1541
tokens_prompt46
tokens_completion100
native_tokens_prompt39
native_tokens_completion80
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"
usage0.00002786
router(null)
provider_responses
0
endpoint_id"722e0746-2034-4d6e-a08f-e6271849ee9e"
id"2bde440a-fc7a-48a5-8d67-899c5a1d0cf0"
is_byokfalse
latency268
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-1777124216-Hr6mcPsKBlmLiiWynOta"
session_id(null)
api_type"completions"
id"gen-1777124216-EyTFiqgid783BtKUECrM"
upstream_id"2bde440a-fc7a-48a5-8d67-899c5a1d0cf0"
total_cost0.00002786
cache_discount(null)
upstream_inference_cost0
provider_name"DeepSeek"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
92.63% Matches word count n/a
neededCleanfalse
sentences12
wordCounts
06
16
25
35
46
55
65
75
85
95
105
116