Versus Engine
Mastra vs SmolAgents
Specs, price and the one trade-off that actually decides it — Mastra against SmolAgents, side by side.
Cheaper to start
Tie
Both start at a similar price.
Best ecosystem
Tie
Neither lists native integrations.
Standout
Mastra
Native TypeScript with genuinely useful type safety
Mastra
Opinionated, strongly-typed agent framework for Next.js and TypeScript.
Where it wins, where it doesn't
Pros
- Native TypeScript with genuinely useful type safety
- Integrates cleanly with Next.js
- Telemetry built in rather than bolted on
Cons
- Young ecosystem — few answers exist for unusual problems
- API surface has shifted between minor versions
- Opinionated structure fights you if your architecture differs
SmolAgents
Lightweight HuggingFace agents that focus on raw Python code generation.
Where it wins, where it doesn't
Pros
- Extremely lightweight
- Code generation focus
Cons
- Python only