Run: 2026-02-25-01KJ950KK1SRRPPQAR7Y37SBNR

Run Details

Duration:
8.3s
Cost:
$0.004639
Provider:
Google AI Studio

Evaluation summary

Score Evaluator
Details Link
51.47% 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 rain lashed against Detective Harding's worn trench coat with relentless fury as he stepped from his car tonight. A chilling wind whipped around the desolate old manor house, making the ancient trees groan ominously above. He pulled his collar higher, his gaze scanning the overgrown path leading towards the imposing, silent structure ahead. Police sirens wailed distantly, their mournful cry adding another layer of dread to the already heavy, suffocating atmosphere. A frantic call had summoned him to this forgotten place; something deeply disturbing awaited his stern, discerning eyes. The grand front door stood slightly ajar, revealing a sliver of darkness that promised only further, undeniable despair inside. Harding pushed it open carefully, the hinges groaning loudly like a tortured soul releasing a final, agonizing breath. His flashlight cut through the gloom, illuminating dust motes dancing in the cold air, revealing the vast, silent foyer. Then he saw it, sprawled awkwardly at the foot of the sweeping staircase: a figure cloaked in vibrant crimson silk. The woman's eyes stared blankly upwards at the shadowed ceiling, reflecting unimaginable horror from her lifeless, frozen gaze. A single, dark red rose lay clutched tightly in her pale, slender fingers, hinting at a cruel, deliberate, artistic touch. The pool of blood beneath her head marred the intricate mosaic floor, stark evidence of a brutal, recent, unforgivable crime. Harding knelt slowly, his gloved hand reaching for her cold wrist, confirming the stark, undeniable tragedy instantly before him. This was no accident; someone had snuffed out this poor woman's life with malice aforethought here in this grand, decaying hall. The game had truly begun with this gruesome discovery, and Detective Harding felt a familiar thrill of impending, difficult work.
created_at"2026-02-25T01:01:02.439Z" 2/25/2026, 1:01:02 AM
model"google/gemini-2.5-flash"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1170
moderation_latency(null)
generation_time8276
tokens_prompt46
tokens_completion1229
native_tokens_prompt38
native_tokens_completion1851
native_tokens_completion_images0
native_tokens_reasoning1497
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"
usage0.0046389
router(null)
provider_responses
0
endpoint_id"16c01e26-9b91-4d22-b487-ed35634b017d"
is_byokfalse
latency1170
model_permaslug"google/gemini-2.5-flash"
provider_name"Google AI Studio"
status200
api_type"completions"
id"gen-1771981262-qQ9efmjHqbncMAsQ4JI3"
upstream_id(null)
total_cost0.0046389
cache_discount(null)
upstream_inference_cost0
provider_name"Google AI Studio"

Evaluation details

Result Evaluator Details Meta Data
51.47% Matches word count n/a
neededCleanfalse
sentences15
wordCounts
019
117
218
318
418
519
618
719
820
918
1020
1120
1219
1321
1420