Run: 2026-07-25-01KYCSRCCE57P7H30DGPG82FRA

Run Details

Duration:
1.7s
Cost:
$0.001130
Provider:
Google AI Studio

Evaluation summary

Score Evaluator
Details Link
52.80% 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 slammed against the tall glass windows, washing away the ancient bloodstains that covered the cold marble floor below. Lord Harrington lay slumped over his mahogany desk, a golden letter opener buried deep inside his silent, still chest. Detective Vance pulled his damp coat tighter, staring intently at the bizarre, intricate silver clock resting beside the corpse. The pendulum was frozen completely in place, pointing directly toward the hidden velvet curtain across the dimly lit room. A single red rose rested near the body, its delicate petals carefully dusted with a strange, glowing white powder. "Nobody leaves this grand mansion tonight," Vance muttered softly, turning his sharp gaze toward the terrified, silent suspects.
created_at"2026-07-25T14:09:38.201Z" 7/25/2026, 2:09:38 PM
model"google/gemini-3.6-flash-20260721"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency423
moderation_latency(null)
generation_time1603
tokens_prompt46
tokens_completion190
native_tokens_prompt38
native_tokens_completion143
native_tokens_completion_images0
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"
service_tier"default"
usage0.0011295
router(null)
provider_responses
0
endpoint_id"5d6d133d-a953-4781-a835-7ee76f4e1388"
id"osNkapCaEteGjrEPmNmZ0Ak"
is_byokfalse
latency423
model_permaslug"google/gemini-3.6-flash-20260721"
provider_name"Google AI Studio"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.18.0; linux; x64))"
http_referer(null)
request_id"req-1784988578-6oyh1PsstkbtVkGfH1pG"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1784988578-HwPaGXdQJ3XJ5PFh1JWS"
upstream_id"osNkapCaEteGjrEPmNmZ0Ak"
total_cost0.0011295
cache_discount(null)
upstream_inference_cost0
provider_name"Google AI Studio"
response_cache_source_id(null)
data_region"global"

Evaluation details

Result Evaluator Details Meta Data
52.80% Matches word count n/a
neededCleanfalse
sentences6
wordCounts
019
119
219
319
419
518