Run: 2026-02-25-01KJ95Y6BZ9XR8FG7KTEEAA4G4

Run Details

Duration:
8.0s
Cost:
$0.004176
Provider:
Google AI Studio

Evaluation summary

Score Evaluator
Details Link
84.13% 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
Rain lashed against the grimy windowpanes of the old mansion. Wind howled, a mournful dirge through the skeletal ancient trees. Inside, the silence felt heavy, thick, profoundly unsettling now. Detective Miles Corbin pulled his trench coat tighter for warmth. His breath plumed white in the grand, drafty, cavernous hall. Sergeant Davies stood grimly near the ornate double mahogany doors. "We have a serious situation, Detective," Davies stated, voice low. Corbin nodded, his keen eyes scanning the opulent, dusty foyer. A faint, metallic scent lingered subtly in the stagnant air. He knew that smell well: the unmistakable, chilling odor of blood. Corbin moved slowly, deliberately, towards the draped entranceway ahead. The crime scene tape glowed yellow against the dim, fading light. Forensics technicians worked quietly, meticulously under the portable floodlights there. Then he saw it: a figure sprawled grotesquely upon the floor. A pool of dark crimson stained the expensive Persian rug deeply. The victim was an elderly man, clad in fine silk pajamas. His wide eyes stared blankly upward, reflecting no light, no life. "Cause of death confirmed?" Corbin asked, not breaking his gaze. Davies swallowed hard, adjusting his cap, "Blunt force trauma, sir." A heavy brass candelabra lay discarded nearby, ominously on the ground. Corbin felt the familiar cold dread settle deep within his bones. Another puzzle began, shrouded in shadow and the pouring rain.
created_at"2026-02-25T01:17:11.94Z" 2/25/2026, 1:17:11 AM
model"google/gemini-2.5-flash"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1300
moderation_latency(null)
generation_time7993
tokens_prompt46
tokens_completion1061
native_tokens_prompt38
native_tokens_completion1666
native_tokens_completion_images0
native_tokens_reasoning1368
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"
usage0.0041764
router(null)
provider_responses
0
endpoint_id"16c01e26-9b91-4d22-b487-ed35634b017d"
is_byokfalse
latency1299
model_permaslug"google/gemini-2.5-flash"
provider_name"Google AI Studio"
status200
api_type"completions"
id"gen-1771982231-IVe9BoJD5Uu7PfswAGEe"
upstream_id(null)
total_cost0.0041764
cache_discount(null)
upstream_inference_cost0
provider_name"Google AI Studio"

Evaluation details

Result Evaluator Details Meta Data
84.13% Matches word count n/a
neededCleanfalse
sentences21
wordCounts
010
110
29
310
410
510
610
710
810
911
109
1111
1210
1311
1411
1511
1611
1710
1821
1911
2010