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Fine vs Mastra
Short answer: Pick Fine if you want AI-agent software building; pick Mastra if you want typed AI agent framework. Fine is free; Mastra has a free plan, paid from $250/month.
Which to pick
Pick Fine if you want…
- AI-agent software building
Pick Mastra if you want…
- Typed AI agent framework
Side by side
- What it is
- Fine:Build Software with AI Agents.
- Mastra:Mastra is an open-source TypeScript framework for building AI-powered agents, workflows, and observability tools.
- Best for
- Fine:AI-agent software building
- Mastra:Typed AI agent framework
- Who it’s for
- Fine:—
- Mastra:TypeScript developers building AI agents and applications
- Pricing
- Fine:Free
- Mastra:Freemium
- Starting price
- Fine:—
- Mastra:$250/month (Teams)
- Free plan or trial
- Fine:—
- Mastra:Free plan (Starter)
- Plans
- Fine:—
- Mastra:Starter $0 per month · Teams $250 per month
- Open source
- Fine:Yes
- Mastra:Yes, 28,378 GitHub stars
- Works with
- Fine:—
- Mastra:React, Next.js, LibSQL, OpenAI, Anthropic, Google, xAI
Fine features
Build Software with AI Agents.
Mastra features
- Typed Agents. Define agents with instructions, models, tools, and runtime behavior in TypeScript.
- Composable Workflows. Create multi-step, retryable, branchable workflows with typed control flow.
- Shared Harness. Coordinate multi-mode agents with shared state, threads, and storage.
- Durable Memory. Provide observational memory, semantic recall, and thread-aware context.
- Built-in Observability. Inspect traces, logs, metrics, and signals for every agent run.
- Mastra Studio. Web UI for building, testing, and managing agents, tools, and workflows.
Fine vs Mastra FAQ
What is the difference between Fine and Mastra?+
Fine focuses on building software with AI agents, while Mastra provides a full TypeScript framework with observability and self-hosted deployment.
Should I use Fine or Mastra?+
Pick Fine if you want AI-agent software building. Pick Mastra if you want typed AI agent framework.
Is Fine or Mastra free?+
Fine is listed as free on DevHunt. Mastra has a free plan (Starter); paid plans start at $250/month (Teams).
Is Fine or Mastra open source?+
Yes, both are open source: Fine (finehq/fine on GitHub) and Mastra (mastra-ai/mastra on GitHub).
On DevHunt
Based on each tool's website and DevHunt data. Details may change; check the official sites.

