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Run: 2026-02-19-01KHVPH5VXMH0DQKXMVAQ21QZC
Run Details
Model:
Gemini 3.1 Pro (Preview)
Test:
N-Length Sentences
Scenario:
Write sentences with 5 words each
Duration:
28.6s
Cost:
$0.029162
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 5 words. Please make sure that each sentence has the same length. Only return the opening itself.
Model response
Messages
Meta
AI
Rain pounded the dark streets. Sirens wailed in the distance. Detective Vance entered the alley. Yellow tape marked the scene. Blood stained the wet asphalt. The victim lay completely still. Nobody witnessed this brutal crime. Vance clicked his heavy flashlight. He illuminated the pale face. Broken glass surrounded her head. Her lifeless eyes stared blankly. A single red rose remained. The killer left a message. Vance spotted a folded note. He slowly opened the paper. The typed words brought chills. Your time has come, detective.
created_at
"2026-02-19T19:37:49.013Z"
2/19/2026, 7:37:49 PM
model
"google/gemini-3.1-pro-preview-20260219"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
3255
moderation_latency
(null)
generation_time
28402
tokens_prompt
46
tokens_completion
703
native_tokens_prompt
37
native_tokens_completion
2424
native_tokens_completion_images
0
native_tokens_reasoning
2284
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
0.029162
router
(null)
provider_responses
0
endpoint_id
"2abf5677-0826-45d9-8470-3d62c31d54a1"
is_byok
false
latency
3255
model_permaslug
"google/gemini-3.1-pro-preview-20260219"
provider_name
"Google AI Studio"
status
200
api_type
"completions"
id
"gen-1771529869-ECxuPZHv2MCNywce9qQ9"
upstream_id
(null)
total_cost
0.029162
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
17
wordCounts
0
5
1
5
2
5
3
5
4
5
5
5
6
5
7
5
8
5
9
5
10
5
11
5
12
5
13
5
14
5
15
5
16
5