Run: 2026-02-19-01KHVPKSFFPFVY7F3CR2ZD7JRC

Run Details

Duration:
1m 1s
Cost:
$0.085408
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 washed over the desolate cobblestone streets while angry thunder cracked loudly against the dark, unforgiving midnight city sky. Detective Miller found the wealthy socialite lying motionless beside a discarded umbrella in the muddy alley behind the old theater. Crimson blood slowly pooled around her pale face, contrasting sharply with the white pearls wrapped tightly around her delicate throat. He crouched down carefully, ignoring the freezing water that soaked through his favorite trench coat and ruined his leather shoes. A single silver stiletto remained on her left foot, but the right shoe had mysteriously vanished into the dark shadows. Someone clearly wanted this beautiful woman dead, leaving absolutely no obvious fingerprints or useful physical evidence at the crime scene. The fatal stab wound located directly over her heart suggested an incredibly precise strike from a truly skilled professional assassin. Miller sighed heavily, realizing this brutal homicide would completely destroy both his quiet weekend and his deeply desired upcoming retirement. Suddenly, a faint metallic clinking sound echoed softly down the dark alley, immediately drawing his full and undivided professional attention. He grasped the heavy weapon tightly while walking forward to confront whoever silently watched him investigate this gruesome crime scene.
created_at"2026-02-19T19:39:14.63Z" 2/19/2026, 7:39:14 PM
model"google/gemini-3.1-pro-preview-20260219"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2834
moderation_latency(null)
generation_time60677
tokens_prompt46
tokens_completion2262
native_tokens_prompt38
native_tokens_completion7111
native_tokens_completion_images0
native_tokens_reasoning6887
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"
usage0.085408
router(null)
provider_responses
0
endpoint_id"2abf5677-0826-45d9-8470-3d62c31d54a1"
is_byokfalse
latency2834
model_permaslug"google/gemini-3.1-pro-preview-20260219"
provider_name"Google AI Studio"
status200
api_type"completions"
id"gen-1771529954-XcI9E9dyvFYrjbu8HvnP"
upstream_id(null)
total_cost0.085408
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
sentences10
wordCounts
020
120
220
320
420
520
620
720
820
920