Best Open-Source Agent Framework AI Agents (2026)
As of September 2026, the top open-source agent framework AI agent is agentic-awesome-skills by sickn33, with an overall score of 87.5 / 100. 24 agent framework agents are tracked in this category on The Agentic Leaderboard.
| Rank | Agent | Score |
|---|---|---|
| #2 | agentic-awesome-skills by sickn33 | 87.5 |
| #4 | ECC by affaan-m | 87.0 |
| #11 | langchain by langchain-ai | 86.3 |
| #13 | ai by vercel | 86.1 |
| #14 | crewAI by crewAIInc | 86.0 |
| #17 | deepseek-harness by deepseek-ai | 85.7 |
| #23 | llama_index by run-llama | 85.5 |
| #34 | dspy by stanfordnlp | 84.9 |
| #35 | semantic-kernel by microsoft | 84.9 |
| #38 | langgraph by langchain-ai | 84.8 |
| #40 | deepagents by langchain-ai | 84.8 |
| #41 | pydantic-ai by pydantic | 84.8 |
| #46 | cognee by topoteretes | 84.6 |
| #48 | ruflo by ruvnet | 84.5 |
| #68 | composio by ComposioHQ | 84.0 |
| #70 | zeroclaw by zeroclaw-labs | 83.9 |
| #71 | planning-with-files by OthmanAdi | 83.9 |
| #74 | claude-mem by thedotmack | 83.7 |
| #75 | adk-python by google | 83.7 |
| #76 | pi by earendil-works | 83.6 |
| #81 | eliza by elizaOS | 83.6 |
| #88 | ragflow by infiniflow | 83.4 |
| #95 | openai-agents-python by openai | 83.2 |
| #99 | agno by agno-agi | 83.1 |