Gemini is a broad, multimodal AI platform from Google that combines conversational chat, large-context reasoning, image and audio generation, and developer APIs. The public-facing Gemini app (gemini.google.com/app) offers a chat-first interface where users can ask questions, draft text, create images, summarize audio or documents, and request step-by-step workflows. The product family includes tiered model variants optimized for different workloads — lower-cost, lower-latency Flash/Flash-Lite models for high-volume tasks; Pro models designed for complex reasoning and coding; and specialized image and audio models for generation and transformation tasks.

For developers and power users, Google exposes Gemini via the Google AI / Gemini API and AI Studio. The API supports text, image, audio and video inputs and outputs, very large context windows (up to 1M tokens on certain models), grounding with Google Search/Maps, and both live (low-latency) and batch modes. Pricing is tiered: there are free quotas and a developer free tier for many models, with paid usage billed per-token or per-image for higher-volume or higher-capability models. Google also offers consumer-level subscription upgrades (e.g., Gemini Pro / Google One bundles) that expand model access, higher limits, faster response, and extra features like advanced image generation and deeper research tools.

Primary use cases include conversational assistance and productivity (drafting, editing, summarization, meeting notes), creative generation (images, audio overviews, storyboarding), developer tooling and code generation, multimodal research and analysis (large-context document understanding), and integrations into Google services (Search, Workspace, Maps). The audience ranges from casual consumers and students who use the web/mobile app for everyday tasks, to businesses and developers who integrate Gemini via APIs for production services, analytics, and content generation. Gemini is provided under Google’s managed, proprietary model: it is offered as a hosted service (not open source) with both free access levels and paid plans that scale for heavier or commercial usage.