Run: 2026-09-10-01M25DR8YJHAMG914BASQ6BPBK

Run Details

Duration:
10.3s
Cost:
$0.001516
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
Rain tapped the window like a nervous finger at midnight. Detective Mara Voss arrived before red lights painted the alley. A body lay beneath a black umbrella, face turned upward. Blood pooled around the victim's throat like a dark halo. No wallet, no phone, no name, only a silver key. Mara knelt, careful not to disturb the silent, watching scene. The victim wore a tailored suit and one missing shoe. A fresh red rose rested on his folded, bloodless hands. Mara whispered softly, "Who leaves flowers after cutting a throat?" Thunder swallowed her question as the old coroner finally arrived. He lifted the rose, sniffed it, paled beneath his mask. Mara asked what he smelled; then he whispered, "My daughter." The silver key in her pocket suddenly felt much heavier. Somewhere nearby, an old church bell began tolling slowly once. Mara knew the killer was not finished with her yet.
created_at"2026-09-10T10:27:58.087Z" 9/10/2026, 10:27:58 AM
model"deepseek/deepseek-v4.1-flash-20260910"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency650
moderation_latency(null)
generation_time10197
tokens_prompt46
tokens_completion2421
native_tokens_prompt65
native_tokens_completion2511
native_tokens_completion_images(null)
native_tokens_reasoning2316
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"
service_tier(null)
usage0.00151635
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer(null)
request_id"req-1789036078-f0UrO91FqwKYK5Q7TSBx"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1789036078-6WIQo5sAQCa207DJA55D"
upstream_id"bfddf04f-66e5-46d0-b37b-b35066004436"
provider_responses
0
endpoint_id"fd104bc8-535a-4d31-a847-a8e402e86a02"
id"bfddf04f-66e5-46d0-b37b-b35066004436"
is_byokfalse
latency326
model_permaslug"deepseek/deepseek-v4.1-flash-20260910"
provider_name"DeepSeek"
status200
total_cost0.00151635
cache_discount(null)
upstream_inference_cost0
provider_name"DeepSeek"
response_cache_source_id(null)
data_region"global"
workspace_id"97e315e5-d303-487d-83c1-83180e8a13d4"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences15
wordCounts
010
110
210
310
410
510
610
710
810
910
1010
1110
1210
1310
1410