Developers building AI agents in 2026 have two primary SDK choices: Anthropic's Claude Agent SDK and Vercel AI SDK 6. The Claude Agent SDK is optimized for Anthropic models, offering built-in tools and caching, while the Vercel AI SDK provides multi-provider support and integrates features like chat, image, and audio processing. AI
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IMPACT Developers can choose between two SDKs for building AI agents, with Anthropic's offering optimized for its models and Vercel's providing broader multi-provider support.
RANK_REASON Comparison of two software development kits for building AI agents.