🚀 Google AI Studio in Plain English

• Google AI Studio → Free, web-based playground. You can test Gemini models, try prompts, tweak parameters, and even export code. Perfect for learning, experimenting, or prototyping ideas. Trade-off: on the free tier, Google uses your data to improve its models. Want privacy? Enable Cloud Billing.
• Vertex AI → Enterprise kit. This is the real deal for businesses that need to train, deploy, and manage AI models at scale. It plugs into Google Cloud, comes with security, governance, and all the knobs and dials you’d expect.
• Gemini app → Consumer assistant. Think ChatGPT-style: simple, heavily filtered, built into Gmail and Docs. Great for everyday tasks, but don’t expect deep controls or developer tools.

👉 Models inside AI Studio include:

• Gemini Pro (text + code),
• Gemini Pro Vision (aka Nano Banana, handles text + image + video inputs),
• Imagen (image generation),
• Veo (video),
• Lyria RealTime (music),
• Gemini TTS/Audio (speech).

🔥 People are already using Gemini Pro Vision for wild stuff: colourising old photos, swapping outfits/hairstyles, making product mockups, creating era-style movie posters, even keeping the same character consistent across dozens of images.

⚠️ What to know:

• Free tier → data is collected and can be human-reviewed. Don’t paste in confidential info.
• Paid tier (billing on) → more usage, privacy protected.
• Limitations → video capped at 24fps HD, music can get repetitive, not a full IDE, and mobile support is thin.

Bottom line:

• AI Studio = sandbox for ideas.
• Vertex AI = enterprise scale.
• Gemini app = daily assistant.