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Run: 2026-02-25-01KJ95K3Z6XD7ETVCK313P1XD2
Run Details
Model:
Gemini 3 Flash (Preview, Reasoning)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
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
Messages
Meta
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_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1700
moderation_latency
(null)
generation_time
20199
tokens_prompt
46
tokens_completion
1301
native_tokens_prompt
38
native_tokens_completion
3935
native_tokens_completion_images
0
native_tokens_reasoning
3798
native_tokens_cached
0
num_media_prompt
(null)
num_input_audio_prompt
(null)
num_media_completion
0
num_search_results
(null)
origin
"https://ncbench.com/"
is_byok
false
finish_reason
"stop"
native_finish_reason
"STOP"
usage
0.011824
router
(null)
provider_responses
0
endpoint_id
"6e82f652-2693-4b60-bbe0-7362d6e345f0"
is_byok
false
latency
1700
model_permaslug
"google/gemini-3-flash-preview-20251217"
provider_name
"Google AI Studio"
status
200
api_type
"completions"
id
"gen-1771981869-MJHUm7fHUoGVtyEQ9jAC"
upstream_id
(null)
total_cost
0.011824
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Google AI Studio"
Evaluation details
Result
Evaluator
Details
Meta Data
100.00%
Matches word count
n/a
neededClean
false
sentences
6
wordCounts
0
20
1
20
2
20
3
20
4
20
5
20