The Vercel AI SDK is an open-source library designed for developers to build AI-powered user interfaces and applications using popular frontend frameworks like React, Svelte, and Vue. It provides core primitives for streaming text, handling function calls, and integrating with various leading AI model providers (e.g., OpenAI, Anthropic, Google, Mistral, Cohere). Key characteristics include a focus on streaming UIs, type-safe APIs, and serverless deployment compatibility. While the SDK itself is free to use, its business model is indirect: it drives adoption and usage of the broader Vercel platform for deploying these AI applications. Vercel offers hosting and infrastructure, and revenue is generated through its paid plans for these deployment services, making the AI SDK a key enabler for its platform's growth.
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