Run: 2026-02-25-01KJ95RWPV5466W5PEKW5TDB82

Run Details

Duration:
7.8s
Cost:
$0.004184
Provider:
Google AI Studio

Evaluation summary

Score Evaluator
Details Link
2.91% 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 grand old manor house stood dark and still, cloaked in an unsettling silence that felt profoundly wrong. Detective Miles Corbin stepped from his idling vehicle, adjusting his trench coat against the unwelcome, bone-chilling night. A uniformed officer met him quickly, nodding gravely before leading the way inside, his face gravely pale tonight. The air within the foyer hung heavy with the distinct coppery scent of fresh spilled blood here. Broken crystal shimmered under harsh lights, scattering sharp fragments across the polished marble floor nearby. "The body is upstairs, sir," the young officer murmured quietly, his voice barely a hushed whisper then. Miles ascended the wide winding staircase, his heavy boots echoing loudly in the vast, disturbing emptiness. The master bedroom door stood ajar, revealing a tableau of chaos frozen forever in the terrible room. A woman lay crumpled beside an antique writing desk, her expensive silk gown now deeply stained crimson. Her wide, vacant eyes stared sightlessly at the ornate ceiling, reflecting no light, no future, no hope. A single, intricate silver letter opener protruded viciously from her delicate, still and silent chest. Miles felt the familiar cold dread settle deep within his gut, another life brutally ended too soon.
created_at"2026-02-25T01:14:18.209Z" 2/25/2026, 1:14:18 AM
model"google/gemini-2.5-flash"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1249
moderation_latency(null)
generation_time7740
tokens_prompt46
tokens_completion1046
native_tokens_prompt38
native_tokens_completion1669
native_tokens_completion_images0
native_tokens_reasoning1431
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"
usage0.0041839
router(null)
provider_responses
0
endpoint_id"16c01e26-9b91-4d22-b487-ed35634b017d"
is_byokfalse
latency1249
model_permaslug"google/gemini-2.5-flash"
provider_name"Google AI Studio"
status200
api_type"completions"
id"gen-1771982058-YvyYMZBe9UZkdiMCsV6w"
upstream_id(null)
total_cost0.0041839
cache_discount(null)
upstream_inference_cost0
provider_name"Google AI Studio"

Evaluation details

Result Evaluator Details Meta Data
2.91% Matches word count n/a
neededCleanfalse
sentences12
wordCounts
018
117
218
317
415
517
616
717
817
917
1015
1117