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Introduction to Google Gemini

Welcome to the Google Gemini service documentation! Powered by Google’s cutting-edge AI, this service provides three major capabilities organized into dedicated sections:

Video Generation

Generate and edit videos with Veo 2 / Veo 3 / Veo 3.1 — text-to-video, image-to-video, extend, reshoot, object insert/remove

Image Generation

Create and edit images with Nano Banana (Fast / Pro / 2) — supports multiple aspect ratios and up to 4K resolution

Gemini Compat (SDK)

Drop-in replacement for Google’s official @google/genai SDK — just change the base URL

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Service Overview

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🎬 Video Generation (Veo 2 / 3 / 3.1)

Full-featured video generation and editing pipeline:
  • Generate Videos — Text-to-video, image-to-video (start/end frame), ingredients-to-video (1-3 reference images)
  • Upsample — Upscale to 1080p or 4K, or generate GIF previews
  • Extend — Extend video duration seamlessly (Veo 3.1 only)
  • Reshoot — Re-generate with different camera motion (pan, zoom, dolly, etc.)
  • Object Insert/Remove — Add or remove objects using masks
  • Prompt Expand — Expand simple prompts into cinematic descriptions
Explore Video Documentation →

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🖼️ Image Generation (Nano Banana)

Powerful image generation and editing with three model tiers:
  • Text-to-Image — Generate original images from text prompts
  • Image Editing — Modify existing images based on prompts
  • Multiple Aspect Ratios — 21:9, 16:9, 9:16, 4:3, 3:2, 5:4, 1:1, and more
  • High Resolution — Up to 4K output (Pro / 2 models)
Available models: nano-banana-fast, nano-banana-pro, nano-banana-2 Explore Image Documentation →

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🔌 Gemini Compat (Official SDK)

A Google Gemini API-compatible endpoint that works with Google’s official @google/genai SDK:
  • Drop-in replacement — Just change the base URL to https://api.mountsea.ai/gemini
  • Text generation — generateContent and streamGenerateContent
  • Image generation — Use Gemini model IDs (gemini-2.5-flash-image, gemini-3.1-flash-image-preview, gemini-3-pro-image-preview) — automatically routed to Nano Banana models
  • Supports official SDK — Use the TypeScript/Python @google/genai library directly
Explore Compat Documentation →

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Base URL

All Gemini endpoints are accessed at: 
https://api.mountsea.ai
For the Gemini Compat SDK endpoint, set your SDK base URL to: 
https://api.mountsea.ai/gemini

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Authentication

All endpoints require Bearer token authentication: 
Authorization: Bearer your-api-key