Run: 2026-02-25-01KJ95180QW7BXB3DGWN92QXFT

Run Details

Duration:
5.2s
Cost:
$0.002519
Provider:
Google AI Studio

Evaluation summary

Score Evaluator
Details Link
77.74% Matches word count (details)

Model input

User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 10 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
The old house loomed, a dark monolith, under a bruised sky. Rain lashed against the grimy windowpanes, a furious, incessant torrent. Inside, Detective Miller shivered, despite the roaring fireplace's heat. He knew tonight would be long, certainly unforgettable, filled with dread. A sudden shrill scream pierced the storm, chilling all occupants. Footsteps thudded heavily above him, a frantic, desperate, hurried sound. Miller raced up the grand, curving staircase, heart pounding wildly. The master bedroom door stood ajar, revealing disturbing shadows within. A maid knelt there, sobbing uncontrollably beside a crumpled form. Her wide eyes stared at Miller, filled with unspeakable horror. On the plush carpet lay Reginald Blackwood, perfectly still, clearly dead. A sterling silver letter opener protruded from his neatly pressed shirt. Blood bloomed dark crimson, staining expensive fabric in the dim light. The maid pointed a trembling finger, whispering one name to him. "He always hated her," she choked, utterly heartbroken, completely undone. Miller took a deep breath, surveying the grisly scene of crime. This closed circle now held a killer. Nobody could leave.
created_at"2026-02-25T01:01:23.358Z" 2/25/2026, 1:01:23 AM
model"google/gemini-2.5-flash"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1860
moderation_latency(null)
generation_time5191
tokens_prompt46
tokens_completion692
native_tokens_prompt38
native_tokens_completion1003
native_tokens_completion_images0
native_tokens_reasoning768
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"
usage0.0025189
router(null)
provider_responses
0
endpoint_id"16c01e26-9b91-4d22-b487-ed35634b017d"
is_byokfalse
latency1680
model_permaslug"google/gemini-2.5-flash"
provider_name"Google AI Studio"
status200
api_type"completions"
id"gen-1771981283-2Sb6QRJEGfXM1c1DgHb7"
upstream_id(null)
total_cost0.0025189
cache_discount(null)
upstream_inference_cost0
provider_name"Google AI Studio"

Evaluation details

Result Evaluator Details Meta Data
77.74% Matches word count n/a
neededCleanfalse
sentences18
wordCounts
011
110
29
311
410
510
610
710
810
910
1011
1111
1211
1311
1410
1511
167
173