Run: 2026-02-19-01KHVP8P8RP42YCT4DJ4YRQWSV

Run Details

Duration:
55.8s
Cost:
$0.059404
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
Heavy rain battered the large glass windows of the isolated mansion when Detective Blackwood stepped into the dark silent study. Lord Harrington lay completely motionless on the expensive red Persian rug with a sharp silver dagger piercing his upper back. A single lamp flickered weakly on the mahogany desk, casting long shadows across the walls of the terrifying crime scene. Beside the cold body rested a shattered crystal glass that still smelled strongly of aged whiskey and bitter almond poison. The heavy oak door remained securely locked from the inside so the cruel killer had seemingly vanished without any trace. Blackwood knelt carefully beside the wealthy victim and pulled a small leather notebook from his own damp brown trench coat. Everyone in this deceitful house possessed a terrible secret, but only one suspect possessed the absolute courage to commit murder.
created_at"2026-02-19T19:33:10.904Z" 2/19/2026, 7:33:10 PM
model"google/gemini-3.1-pro-preview-20260219"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3291
moderation_latency(null)
generation_time55661
tokens_prompt46
tokens_completion1237
native_tokens_prompt38
native_tokens_completion4944
native_tokens_completion_images0
native_tokens_reasoning4791
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"STOP"
usage0.059404
router(null)
provider_responses
0
endpoint_id"2abf5677-0826-45d9-8470-3d62c31d54a1"
is_byokfalse
latency3291
model_permaslug"google/gemini-3.1-pro-preview-20260219"
provider_name"Google AI Studio"
status200
api_type"completions"
id"gen-1771529590-8vnFCN80PUgftEfYj9GS"
upstream_id(null)
total_cost0.059404
cache_discount(null)
upstream_inference_cost0
provider_name"Google AI Studio"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences7
wordCounts
020
120
220
320
420
520
620