Convex vs Vercel AI SDK
Side-by-side comparison to help you choose the best tool.
Convex
freemiumConvex is a fullstack TypeScript cloud backend for reactive applications, providing a database, serverless functions, file storage, and real-time subscriptions in one platform. Its developer-friendly approach with full TypeScript, automatic query caching, and built-in vector search make it popular for building AI applications with real-time reactivity.
Vercel AI SDK
freeThe Vercel AI SDK is an open-source TypeScript toolkit for building AI applications with React, Next.js, Vue, Svelte, and other systems. It provides a unified interface for 20+ AI providers (OpenAI, Anthropic, Google, etc.) with streaming, tool calling, and structured output built-in. With its React hooks and RSC support, the AI SDK is the fastest way to add AI features to modern JavaScript web apps.
| Feature | Convex | Vercel AI SDK |
|---|---|---|
| Pricing | freemium | free |
| Category | - | - |
| Rating | 4.4 | 4.6 |
| Best For | TypeScript developers building real-time AI applications who want a backend that handles database, functions, and vector search in one reactive system | JavaScript and TypeScript developers building AI web applications with React and Next.js who want a unified, streaming-first SDK |
| Views | 4 | 6 |
Pros
- End-to-end TypeScript with automatic type safety
- Real-time reactivity without polling
- Built-in vector search for AI apps
Cons
- JavaScript/TypeScript only
- Less flexible than Supabase for SQL power users
Pros
- Fastest way to add AI to React/Next.js apps
- Unified interface eliminates per-provider SDK differences
- Open-source with strong Vercel backing
Cons
- JavaScript/TypeScript only
- Primarily React-focused
- Fullstack TypeScript backend
- Real-time reactive queries
- Built-in vector search
- Serverless functions
- Automatic caching
- Unified API for 20+ AI providers
- React hooks & RSC support
- Streaming text & object generation
- Tool calling & agents
- TypeScript-first