Allowlist Request: Gemini 3.x Preview Models for project general-project-41306

Hi, we’d like to request allowlist access for the following models:

  • gemini-3-flash-preview
  • gemini-3.1-flash-lite-preview
  • gemini-3-pro-preview
  • gemini-3.1-pro-preview

Project details:

  • GCP Project ID: general-project-41306
  • Region: us-central1
  • Billing: Enabled
  • Vertex AI API: Enabled
  • Service account role: Vertex AI User

Use case:
We are building Vertin English Tutor, an AI-powered English speaking practice web application. The pipeline is: user
speech → Whisper STT (local GPU) → LLM conversation partner → GPT-SoVITS TTS (local GPU).

We have already verified end-to-end integration using gemini-2.5-flash, and the system (real-time WebSocket pipeline,
conversation history management, character-driven system prompting) is running stably in active development.

We are requesting access to the Gemini 3.x preview models to evaluate and adopt the improved creative writing and
role-playing capabilities, which are essential for our character-driven conversation partner experience. The flash
models will serve our primary chat workload, while the pro models will be used for more complex dialogue scenarios and
system prompt engineering.

Please grant allowlist access at your earliest convenience. Thank you.