Run: 2026-09-10-01M25DTC6416M7KP72YW5DRK9A

Run Details

Duration:
1m 44s
Cost:
$0.004774
Provider:
DeepInfra

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 20 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
Rain hammered the windows of Blackthorn Manor just as Detective Mara Voss stepped into the silent, candlelit, grand old foyer. A dead man lay sprawled across the marble floor with a bloody silver letter opener buried deep in his chest. Detective Voss knelt beside him while sudden thunder shook the chandelier and dark shadows danced along the paneled oak walls. The victim's eyes were open wide, and his pale lips seemed frozen around a single final, unfinished, desperate last word. No weapon glinted nearby, no footprints marked the carpet, and no obvious suspect stood waiting visibly in the dark gloom. Only a grandfather clock ticked softly in the hallway, counting seconds that felt heavier than the distant angry storm outside. Detective Voss whispered, "Whoever did this is still inside Blackthorn Manor tonight, and they already know I have now arrived."
created_at"2026-09-10T10:29:06.888Z" 9/10/2026, 10:29:06 AM
model"deepseek/deepseek-v4.1-flash-20260910"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency602
moderation_latency(null)
generation_time103530
tokens_prompt46
tokens_completion3950
native_tokens_prompt65
native_tokens_completion3962
native_tokens_completion_images(null)
native_tokens_reasoning3784
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)
usage0.0047739
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer(null)
request_id"req-1789036146-SjPy4D1AepZo7FtSryF5"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1789036146-6ntvdBfG3zxYERVz509v"
upstream_id"chatcmpl-RZG80dmTnDqlLQgO67GHdLHj"
provider_responses
0
endpoint_id"519706ce-5bef-4de6-a755-71cc3c3ac632"
id"chatcmpl-RZG80dmTnDqlLQgO67GHdLHj"
is_byokfalse
latency75
model_permaslug"deepseek/deepseek-v4.1-flash-20260910"
provider_name"DeepInfra"
status200
total_cost0.0047739
cache_discount(null)
upstream_inference_cost0
provider_name"DeepInfra"
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
sentences7
wordCounts
020
120
220
320
420
520
620