AI Agents SDK Comparison 2026: Strands vs OpenAI SDK vs Mastra
Three SDKs have emerged as the default starting points when teams reach for an AI agent framework in 2026: AWS Strands Agents, the OpenAI Agents SDK, and Mastra. Each reflects a different design philosophy — model-driven minimalism, industry-standard tooling, and batteries-included TypeScript — and each is genuinely good at what it targets. This comparison cuts through the marketing to give you a technical, opinionated view of all three so you can make the right call for your project without burning two weeks on trials. ...