Symphony vs Mastra
Side-by-side — pricing, strengths, tradeoffs, and fit.
Symphony
Stop supervising AI agents — let them run independently
Mastra
The TypeScript AI agent framework
At a glance
Open SourceFree Tier
○ Emerging·From Free / Open Source
Open SourceFree Tier
◐ Growing·From Free / Open Source
Overview
One-liner
One-liner
Stop supervising AI agents — let them run independently
One-liner
The TypeScript AI agent framework
Maturity
Maturity
EmergingMaturity
GrowingOpen source
Open source
✓ YesOpen source
✓ YesPricing
Free tier
Free tier
✓ AvailableFree tier
✓ AvailableStarts at
Starts at
Free / Open Source
Starts at
Free / Open Source
Model
Model
Flat rate
Model
Flat rate
Enterprise
Enterprise
✕ NoneEnterprise
✕ NoneBest for
✓ Best for
Engineering teams who want to delegate batches of issues or features to autonomous coding agents without babysitting each run
✓ Best for
TypeScript developers building production AI agents and workflows who want type safety and a clean DX
Not ideal for
✕ Not for
Teams needing real-time collaboration with agents or those not yet using Linear/GitHub Issues as their workflow
✕ Not for
Python-first teams or those who prefer LangChain's ecosystem
Strengths
↑ Strengths
Isolated implementation runs
Parallel agents
WORKFLOW.md config
Linear integration
↑ Strengths
TypeScript-first
Typed tools
Agent memory
Workflows
Weaknesses
↓ Weaknesses
—
↓ Weaknesses
—