Llama Stack vs Mastra
Updated March 10, 2026
Overview
Llama Stack is Meta's standardized API and SDK for building AI applications on top of Llama models. It provides a unified interface for inference, safety, memory, and agentic workflows — with swappable providers for local, cloud, and on-device deployment. As the official framework for the Llama ecosystem, it is becoming the default for teams building on open-source Llama models.
Mastra is a TypeScript-first agent framework for building production AI applications. It provides primitives for agents, workflows, RAG, integrations, and memory with a focus on developer experience and type safety. Mastra is designed for full-stack TypeScript developers who want to build AI features without leaving their existing tech stack.
Key features
Core capabilities each platform advertises.
- TypeScript agent framework
- Built-in tool calling and workflows
- Sync engine for agent state
- Integration marketplace
- Production-ready agent primitives
Strengths and tradeoffs
What each tool does well, and the limitations to keep in mind.
Pros
- Completely free and open-source framework with permissive licensing
- Unified APIs across multiple service providers simplify deployment
- Recent 50 percent pricing reductions make models more cost-effective
- Strong backing from Meta with partnerships across major tech companies
Cons
- Setup and configuration complexity with build failures reported
- Documentation gaps lead to import errors and confusion
- Windows compatibility issues limit platform support
- Lack of security policies may concern enterprise users
Pros
- Production-ready platform
- Good performance
- Active development
- Strong features
Cons
- Enterprise pricing varies
- Setup complexity
- Learning curve required
Llama Stack or Mastra — which should you choose?
Choose Llama Stack if you wantChoose if you want
Choose Mastra if you wantChoose if you want
- TypeScript-native agent development
- Building AI workflows with tool use
- Agent state management
- Production agent deployment
- Multi-step task automation
Compare Llama Stack and Mastra on your own traffic
Respan lets you trace LLM and agent calls across any model or framework, A/B test prompts on production traffic, and route requests across 500+ models through one gateway.
