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vercel-ai-sdk vs claude-agent-sdk

Multi-model flexibility vs Anthropic-native depth

Our pick

Vercel AI SDK

Vercel AI SDK

Vercel

Our pick

TypeScript SDK for building AI-powered apps with any model

Open-source: Free
Full review

Claude Agent SDK

Anthropic

Anthropic's official SDK for building production Claude agents

Open-source: Free
Full review
Detailed comparison coming soon. Feature matrix below.

Feature breakdown

Feature
Vercel AI SDK
Claude Agent SDK
Streaming responses
Yes
Yes
Tool / function calling
Yes
Yes
Multi-model support
Yes
No
TypeScript native
Yes
Yes
Managed infrastructure
No
No
Self-hostable
Yes
Yes
Built-in observability
Partial
Partial
Free / open-source
Yes
Yes
Multi-modal
Yes
Yes

Partial = available with limitations or on higher tiers

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