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Run: 2026-02-25-01KJ952PWHZGSEEPB2VZJNH89M
Run Details
Model:
Gemini 3 Flash (Preview, Reasoning)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
39.6s
Cost:
$0.025102
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 silent library while the grandfather clock ticked away the final seconds of life. Lord Blackwood slumped over his mahogany desk with a silver letter opener protruding from the middle of his broad back. A single drop of crimson blood fell onto the white carpet as the heavy oak door creaked slowly wide open. Detective Miller stepped into the room and adjusted his spectacles while ignoring the cold wind blowing through the broken window. He noticed that the expensive vintage brandy had been poured but the crystal glass remained completely full upon the table. Rain lashed against the glass panes as he knelt beside the body to search for any clues the killer left. Suddenly a sharp scream echoed from the hallway outside and shattered the eerie stillness which had permeated this gloomy estate. He grabbed his heavy steel revolver and ran toward the noise knowing that another victim might be facing a killer.
created_at
"2026-02-25T01:02:11.35Z"
2/25/2026, 1:02:11 AM
model
"google/gemini-3-flash-preview-20251217"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1421
moderation_latency
(null)
generation_time
39534
tokens_prompt
46
tokens_completion
2025
native_tokens_prompt
38
native_tokens_completion
8361
native_tokens_completion_images
0
native_tokens_reasoning
8191
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
0.025102
router
(null)
provider_responses
0
endpoint_id
"6e82f652-2693-4b60-bbe0-7362d6e345f0"
is_byok
false
latency
1420
model_permaslug
"google/gemini-3-flash-preview-20251217"
provider_name
"Google AI Studio"
status
200
api_type
"completions"
id
"gen-1771981331-cWqEgDbiqYo6vbdwlEmy"
upstream_id
(null)
total_cost
0.025102
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
8
wordCounts
0
20
1
20
2
20
3
20
4
20
5
20
6
20
7
20