DOCTRINE

AI Frameworks

No marketing fluff. No hype cycles. Compare AI development frameworks with real capability breakdowns, provider support analysis, and honest trade-offs — built for teams who need clarity on which SDK actually fits their AI product requirements.

Vercel AI SDK

The TypeScript toolkit for building AI-powered applications and agents — with unified APIs for 20+ LLM providers, streaming UI primitives, structured output generation, and seamless integration with React Server Components and Next.js.

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Mastra

The TypeScript framework for building production AI agents and workflows — with built-in tool calling, RAG pipelines, workflow orchestration, and 50+ third-party integrations that let developers ship intelligent applications in days, not months.

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More Frameworks Coming Soon

We're adding LangChain.js and more. Every framework gets the same treatment — honest capability breakdowns, real-world use cases, and no-BS trade-offs.