Hello Google Vertex AI team,
I would like to request allowlist access to the Veo 3.1 preview video generation models on Vertex AI for our Google Cloud project.
**Project**
- Project ID: centering-rider-502315-s..
- Project display name: My First Project
- Organization: xenlook
- Project number: [fill from Cloud Console → IAM & Admin → Settings]
- Primary region: us-central1
**Billing**
- Billing account ID: 01F987-72EC8F-BB27.. (Active, Direct)
- Free Trial credit: FreeTrial:Credit-01F987-72EC8F-BB27..
- Credit balance: KRW 435,523 (100% available, one-time, expires 2026-11-20)
- This billing account is linked to centering-rider-502315-s8
**APIs**
- Vertex AI API (aiplatform.googleapis.com): [Enabled / please confirm enabled]
- Contact: help@xenlook .com
**Models requested**
- veo-3.1-generate-preview (Standard — reference images required)
- veo-3.1-fast-generate-preview
- veo-3.1-lite-generate-preview (optional, for throughput tests)
**Current error**
When calling generateVideos via the google-genai Python SDK (vertexai=True) against:
projects/centering-rider-502315-s8/locations/us-central1/publishers/google/models/veo-3.1-generate-preview
We receive:
404 NOT_FOUND — “Publisher model … was not found or your project does not have access to it.”
Billing-related BILLING_DISABLED errors do not occur on this project; we believe this is an allowlist / preview access issue.
**Use case**
XENLOOK — cinematic character video pipeline for a Korean AI companion product.
We generate short (8 second) vertical (9:16) loop clips for a 24h “CCTV / DayArc” UI panel. Each clip uses:
- Text prompt (character identity + scene action)
- 4 reference images (face, 45° angle, side, full-body outfit) via VideoGenerationReferenceImage
- Model: veo-3.1-generate-preview
- Resolution: 720p, no audio
- Volume: initial test 3 scenes, then ~14 loop seeds per character (production fleet scale later)
This is programmatic backend generation on DGX dev → Vertex AI (not consumer UI only).
**Technical stack**
- Python 3.12, google-genai SDK
- Auth: Workload Identity Federation → service account impersonation (vertex-runtime@fluid-kiln-500216-j4) with Vertex AI User role; also testing Application Default Credentials path
- Repo-local tool: seria-video-gen (Seria character pilot)
**What we need**
Allowlist access for the Veo 3.1 preview models on project centering-rider-502315-s8 in us-central1 so predictLongRunning / generateVideos succeeds.
Thank you for your consideration.