AI Agent Framework Comparison
Compare AI agent frameworks such as LangChain, CrewAI, AutoGen and Mastra by language, GitHub stars, multi-agent, tool, RAG and MCP support.
AI Agent Framework Comparison
| vs | Language | Multi-agent | Tools | Stream | RAG | MCP | Maturity | Info | |||
|---|---|---|---|---|---|---|---|---|---|---|---|
AutoGPT v0.6.54 · MIT | Python | 187.6k | Limited | Yes | No | Yes | No | Medium | Beta | ||
LangChain / LangGraph v1.2 / v1.1 · MIT | Python | 147.4k | Yes | Yes | Yes | Yes | Via Adapter | High | Production | ||
AutoGen (Microsoft) v0.4.4 · MIT | Python | 61.2k | Yes | Yes | Yes | Yes | Planned | Medium | Stable | ||
CrewAI v1.14.1 · MIT | Python | 59.3k | Yes | Yes | Yes | Yes | Yes | Low | Production | ||
LlamaIndex v0.14.20 · MIT | Python | 52.4k | Limited | Yes | Yes | Yes | Via Adapter | Medium | Production | ||
Agno (formerly Phidata) v2.5.16 · Apache-2.0 | Python | 42.5k | Yes | Yes | Yes | Yes | Yes | Low | Production | ||
DSPy (Stanford) v3.1.3 · MIT | Python | 38.5k | No | Yes | No | Yes | No | High | Stable | ||
OpenAI Agents SDK v0.13.6 · MIT | Python | 29.8k | Yes | Yes | Yes | No | Yes | Low | Beta | ||
Smolagents (HuggingFace) v1.24.0 · Apache-2.0 | Python | 29.7k | Yes | Yes | Yes | Yes | No | Low | Stable | ||
Semantic Kernel (Microsoft) v1.30 · MIT | .NET | 28.6k | Yes | Yes | Yes | Yes | Yes | Medium | Production | ||
Mastra v1.24.0 · Elastic-2.0 | TypeScript | 28.5k | Yes | Yes | Yes | Yes | Yes | Medium | Stable | ||
Vercel AI SDK v6.0.159 · Apache-2.0 | TypeScript | 27.1k | Limited | Yes | Yes | Yes | Yes | Low | Production | ||
Haystack (deepset) v2.9 · Apache-2.0 | Python | 26.6k | Limited | Yes | Yes | Yes | No | Medium | Production | ||
BabyAGI v2.0 · MIT | Python | 22.4k | No | Yes | No | No | No | Low | Alpha | ||
Google Agent Development Kit v1.29.0 · Apache-2.0 | Python | 21.7k | Yes | Yes | Yes | Yes | Yes | Medium | Stable | ||
Pydantic AI v1.80.0 · MIT | Python | 20.4k | Limited | Yes | Yes | No | Yes | Low | Stable | ||
Anthropic Agent SDK v0.1.33 · MIT | Python | 8.2k | Limited | Yes | Yes | No | Yes | Low | Alpha |
AutoGPT
PythonBetaThe viral autonomous agent project. Evolved from a script into a full platform with a visual builder and marketplace.
LangChain / LangGraph
PythonProductionThe most popular LLM framework. LangGraph adds stateful, graph-based orchestration for complex multi-step agents.
AutoGen (Microsoft)
PythonStableMicrosoft's multi-agent conversation framework. v0.4 is a complete redesign. Merging with Semantic Kernel into unified Microsoft Agent Framework.
CrewAI
PythonProductionLean, lightning-fast Python framework for orchestrating role-playing autonomous AI agents. Built entirely from scratch, independent of LangChain.
LlamaIndex
PythonProductionThe leading framework for building LLM-powered agents over your data. Specializes in connecting, indexing, and querying data from 160+ sources.
Agno (formerly Phidata)
PythonProductionBuild, run, and manage agentic software at scale. Formerly Phidata, rebranded as Agno with 39K+ stars and full MCP support.
DSPy (Stanford)
PythonStableThe framework for programming -- not prompting -- language models. Uses compilers to optimize prompts and weights automatically.
OpenAI Agents SDK
PythonBetaOfficial OpenAI agent framework. Lightweight and powerful with multi-agent handoffs, guardrails, and tracing out of the box.
Smolagents (HuggingFace)
PythonStableA barebones library for agents that think in code. Minimal abstractions, maximum transparency.
Semantic Kernel (Microsoft)
.NETProductionMicrosoft's enterprise AI SDK for .NET/Python/Java. Merging with AutoGen into a unified Microsoft Agent Framework.
Mastra
TypeScriptStableTypeScript-first AI agent framework from the Gatsby team. Provides workflows, RAG, and first-class MCP support out of the box.
Vercel AI SDK
TypeScriptProductionThe AI toolkit for TypeScript from the creators of Next.js. Over 20 million monthly downloads. Unified API for any LLM provider.
Haystack (deepset)
PythonProductionAI orchestration framework for building customizable, production-ready LLM applications. Strong focus on RAG and NLP pipelines.
BabyAGI
PythonAlphaAn experimental framework for a self-building autonomous agent. Minimal by design, used primarily for research and learning.
Google Agent Development Kit
PythonStableGoogle's official open-source Python toolkit for building, evaluating, and deploying sophisticated AI agents with native Gemini integration.
Pydantic AI
PythonStableGenAI agent framework the Pydantic way. Type-safe, validated, and production-ready with V1 API stability commitment.
Anthropic Agent SDK
PythonAlphaOfficial Python SDK for building agents with Claude. Alpha status but rapidly evolving with native MCP support.
Versions, licenses and feature details are curated. Confirm them in each project's repository before adopting.
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How to use AI Agent Framework Comparison
- 1
Filter the frameworks
Filter by language, multi-agent support and MCP support, search by name, or use a quick filter for RAG, multi-agent, MCP, beginner-friendly or enterprise use.
- 2
Compare features
The table shows multi-agent orchestration, tool calling, streaming, RAG, MCP support, learning curve and maturity for every framework.
- 3
Select two or three to compare
Tick frameworks in the table or card view and open the side-by-side comparison: version, license, GitHub stars, supported LLM providers and best-fit use cases.
- 4
Confirm before you adopt
Star counts come from GitHub; versions, licenses and features are curated. Check the project's repository before you commit.
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