Run: 2026-05-20-01KS25XA8W5VM8F244PWP4PS04

Run Details

Duration:
1.4s
Cost:
$0.001182
Provider:
Google AI Studio

Evaluation summary

Score Evaluator
Details Link
92.13% 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 grandfather clock struck midnight, sending a heavy, mournful chime through the dusty corridors of the quiet, darkened countryside manor. Inside the locked study, Sir Reginald sat frozen in his leather armchair, a thin stream of crimson pooling on his collar. Outside the window, sheets of cold rain beat relentlessly against the glass, masking any desperate sounds of a final struggle. Inspector Vance adjusted his dripping trench coat, stepped past the yellow police tape, and stared intently at the gruesome scene. No forced entry was visible on the heavy wooden doors, meaning the cunning killer was still trapped inside the house.
created_at"2026-05-20T07:51:54.914Z" 5/20/2026, 7:51:54 AM
model"google/gemini-3.5-flash-20260519"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency704
moderation_latency(null)
generation_time1320
tokens_prompt46
tokens_completion168
native_tokens_prompt38
native_tokens_completion125
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"standard"
usage0.001182
router(null)
provider_responses
0
endpoint_id"bd50061c-e1d8-469e-96b1-d322e77378f8"
id"G2gNapncA5_GjMcP0v7A0Ak"
is_byokfalse
latency704
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-1779263514-BQkmlgAewFeWcKITM6ku"
session_id(null)
api_type"completions"
id"gen-1779263514-ZyW2hnHyskfp36FPKBx9"
upstream_id"G2gNapncA5_GjMcP0v7A0Ak"
total_cost0.001182
cache_discount(null)
upstream_inference_cost0
provider_name"Google AI Studio"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
92.13% Matches word count n/a
neededCleanfalse
sentences5
wordCounts
020
121
220
320
420