Run: 2026-05-19-01KS0TV2CYYR8Y9T2NFD1QZTBY

Run Details

Duration:
11.8s
Cost:
$0.027372
Provider:
Google AI Studio

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
The heavy rain poured on the stone manor, washing away the blood of the victim who lay on the floor. Detective Miller stared intently at the broken pocket watch, which had stopped precisely at midnight when the fatal blow landed. Lord Blackwood was dressed in his finest evening tuxedo, but a silver letter opener protruded deeply from his still chest. No obvious signs of forced entry were found, meaning the clever killer was likely someone currently sleeping under this roof. A muffled scream echoed from the dark hallway, signaling that this long, terrifying night of investigation had only just begun.
created_at"2026-05-19T19:19:12.549Z" 5/19/2026, 7:19:12 PM
model"google/gemini-3.5-flash-20260519"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1300
moderation_latency(null)
generation_time11696
tokens_prompt46
tokens_completion1347
native_tokens_prompt38
native_tokens_completion3035
native_tokens_completion_images0
native_tokens_reasoning2922
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"standard"
usage0.027372
router(null)
provider_responses
0
endpoint_id"bd50061c-e1d8-469e-96b1-d322e77378f8"
id"sLcMaoi0KqmwjMcPi-3xkAo"
is_byokfalse
latency1299
model_permaslug"google/gemini-3.5-flash-20260519"
provider_name"Google AI Studio"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.15.0; linux; x64))"
http_referer(null)
request_id"req-1779218352-z1i6A1Rn3jwHpRIr9zJU"
session_id(null)
api_type"completions"
id"gen-1779218352-YuohOF5o4oR58ZGEY460"
upstream_id"sLcMaoi0KqmwjMcPi-3xkAo"
total_cost0.027372
cache_discount(null)
upstream_inference_cost0
provider_name"Google AI Studio"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences5
wordCounts
020
120
220
320
420