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Run: 2026-02-19-01KHVP7DXC491TH69ACZBZM2FP
Run Details
Model:
Gemini 3.1 Pro (Preview)
Test:
N-Length Sentences
Scenario:
Write sentences with 5 words each
Duration:
28.2s
Cost:
$0.038438
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
Heavy rain battered the window. Blood pooled on the floor. Detective Vance surveyed the room. A cold wind blew inside. The victim lay completely still. Pale moonlight revealed her face. Broken glass surrounded the doorway. Someone had entered very quietly. Muddy tracks stained the carpet. Footprints trailed toward the hallway. A silver knife rested nearby. The killer left in haste. Silence filled the dark mansion. The tall clock ticked loudly. Vance knelt beside the corpse. She clutched a torn photo. He gently took the evidence. The picture showed three people. One face was scratched out. A deadly game had begun.
created_at
"2026-02-19T19:32:29.581Z"
2/19/2026, 7:32:29 PM
model
"google/gemini-3.1-pro-preview-20260219"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
2765
moderation_latency
(null)
generation_time
28074
tokens_prompt
46
tokens_completion
1049
native_tokens_prompt
37
native_tokens_completion
3197
native_tokens_completion_images
0
native_tokens_reasoning
3073
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
0.038438
router
(null)
provider_responses
0
endpoint_id
"2abf5677-0826-45d9-8470-3d62c31d54a1"
is_byok
false
latency
2765
model_permaslug
"google/gemini-3.1-pro-preview-20260219"
provider_name
"Google AI Studio"
status
200
api_type
"completions"
id
"gen-1771529549-tss5j2xR4eM6mQKrzYEG"
upstream_id
(null)
total_cost
0.038438
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
20
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
17
5
18
5
19
5