Google AI Studio is the fastest way to build with Gemini models: a prompt playground with system instructions, temperature and tool controls, plus one-click API key generation for production use. You can prototype multimodal prompts with image and video input, try the Veo video models, and vibe-code small apps that export straight into code.
Start free of charge with generous daily limits – the most usable free tier among the major labs – then scale with prepaid, pay-as-you-go Gemini API billing. Google AI subscriptions (from $4.99 per month) raise limits across AI Studio and consumer Gemini alike.