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Find the right Agent or Harness for the way you work

Compare agents and harnesses by deployment, pricing, capabilities, official releases, and documented review evidence.

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9 frameworks

Page 1

AI SDK by Vercel

Vercel

A TypeScript toolkit for building AI-powered applications and agents across supported model providers.

Reference
Agent framework
Use
General purpose
Pricing
Unknown pricing
Not verified
Latest release
None· None

Agno

Agno

An SDK for building, running, and managing agent platforms.

Reference
Agent framework
Use
General purpose
Pricing
Unknown pricing
Not verified
Latest release
None· None

BeeAI Framework

IBM Research / BeeAI

An open-source framework for building multi-agent systems in Python or TypeScript.

Reference
Agent framework
Use
General purpose
Pricing
Unknown pricing
Not verified
Latest release
None· None

DSPy

Stanford NLP

A Python framework for building AI systems with structured signatures, reusable modules, and optimization.

Reference
Agent framework
Use
General purpose
Pricing
Unknown pricing
Not verified
Latest release
None· None

Mastra

Mastra

A TypeScript framework for building AI agents and applications.

Reference
Agent framework
Use
General purpose
Pricing
Unknown pricing
Not verified
Latest release
None· None

OpenAI Agents SDK

OpenAI

A lightweight SDK for building agentic AI applications with agents, tools, handoffs, guardrails, and tracing.

Reference
Agent framework
Use
General purpose
Pricing
Unknown pricing
Not verified
Latest release
None· None

Pydantic AI

Pydantic

A typed, extensible Python AI SDK for building agents and AI applications.

Reference
Agent framework
Use
General purpose
Pricing
Unknown pricing
Not verified
Latest release
None· None

Strands Agents

Strands Agents

A Python and TypeScript SDK for building, managing, evaluating, and deploying AI-powered agents.

Reference
Agent framework
Use
General purpose
Pricing
Unknown pricing
Not verified
Latest release
None· None

smolagents

Hugging Face

An open-source Python library for building and running tool-using AI agents with minimal abstractions.

Reference
Agent framework
Use
General purpose
Pricing
Unknown pricing
Not verified
Latest release
None· None

How do Agent Skills work?

A skill is a bounded set of instructions and resources that tells an agent when and how to perform a specialized task.