Run: 2026-02-25-01KJ95K3Z6XD7ETVCK313P1XD2

Run Details

Duration:
20.7s
Cost:
$0.011824
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
The velvet curtains hung heavy in the library, blocking the moon's pale light from the cold and silent marble floor. Lord Blackwood sat stiffly in his favorite leather armchair, but his eyes were wide and quite vacant of any life. A single silver dagger stood upright within his chest, its hilt gleaming brightly under the flickering glow of the candles. Footsteps echoed softly down the long hallway, suggesting that the cunning killer was still lurking somewhere inside the sprawling estate. Detective Miller stepped through the heavy oak doors, clutching his coat against the sudden chill that swept the dark room. He pulled a notebook from his pocket while he observed the crimson pool spreading slowly across the expensive Persian rug.
created_at"2026-02-25T01:11:09.036Z" 2/25/2026, 1:11:09 AM
model"google/gemini-3-flash-preview-20251217"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1700
moderation_latency(null)
generation_time20199
tokens_prompt46
tokens_completion1301
native_tokens_prompt38
native_tokens_completion3935
native_tokens_completion_images0
native_tokens_reasoning3798
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"
usage0.011824
router(null)
provider_responses
0
endpoint_id"6e82f652-2693-4b60-bbe0-7362d6e345f0"
is_byokfalse
latency1700
model_permaslug"google/gemini-3-flash-preview-20251217"
provider_name"Google AI Studio"
status200
api_type"completions"
id"gen-1771981869-MJHUm7fHUoGVtyEQ9jAC"
upstream_id(null)
total_cost0.011824
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
sentences6
wordCounts
020
120
220
320
420
520