Deep Agents vs LlamaIndex
LlamaIndex has more GitHub stars, 52,641 to 30,550, but Deep Agents has more weekly downloads, 1,930,228 to 1,391,530. Both are MIT licensed and graded A for freshness.
Deep Agents suits TypeScript work, comes with MCP support built in, handles several agents working together and is the stable release. LlamaIndex is marked beta. It is the Python toolkit for RAG over your own data, with 300+ integration packages.
Updated Oct 26, 2026 · Built from catalog data; how we rank and grade
Deep Agents
LangChain
Opinionated agent harness on LangGraph with sub-agents, filesystem access, context management, persistent memory and approval of tool calls.
LlamaIndex
LlamaIndex
Open-source Python toolkit for RAG and agents over your own data, with event-driven workflows and 300+ integration packages.
Who should pick which
- Pick Deep Agents if you work in TypeScript.
- Pick Deep Agents if you want MCP support built in.
- Pick Deep Agents if you need several agents working together.
- Pick Deep Agents if you want a stable release (LlamaIndex is marked beta).
From listing data only. We don't pick a winner on security beyond the grades; read how grades work.
Side by side
| Fact | Deep Agents | LlamaIndex |
|---|---|---|
| Type | Harness | Harness |
| Publisher | LangChain | LlamaIndex |
| License | MIT | MIT |
| Pricing | Not stated | Not stated |
| Runs | Not stated | Not stated |
| Auth | Not stated | Not stated |
| Hosts supported | Not stated | Not stated |
| Tools | Not listed yet | Not listed yet |
| Security grade | –Security: not graded yet | –Security: not graded yet |
| Freshness grade | AFreshness: A | AFreshness: A |
| GitHub stars | 30,550 | 52,641 |
| Weekly downloads | 1,930,228 | 1,391,530 |
| Last release | Oct 23, 2026 | Sep 21, 2026 |
| Last activity | Oct 24, 2026 | Oct 14, 2026 |
Facts from each listing's public sources, checked daily. Tool lists arrive with tool scans.
Install
Deep Agents
pip install deepagents
LlamaIndex
pip install llama-index
Also consider
- 0.867score
Pi Agent Core
Earendil
Minimal TypeScript agent harness with an agent runtime, multi-provider LLM API, terminal UI and coding agent CLI that users extend themselves.
HarnessAFreshness: A★ 117.6K↓ 5.1M/wk - 0.831score
CopilotKit
CopilotKit
Open-source SDK that connects AI agents to app front ends with chat UI, generative UI, shared state and human approvals; creator of the AG-UI protocol.
HarnessAFreshness: A★ 38.2K↓ 286.2K/wk - 0.799score
Letta
Letta
Open-source agent harness for stateful agents whose memory persists and improves with use, with a terminal UI, app server and TypeScript SDK.
HarnessAFreshness: A★ 25.2K↓ 40.7K/wk
Questions
- Is Deep Agents or LlamaIndex more popular?
- LlamaIndex has more GitHub stars (52,641 against 30,550). Stars measure attention, not quality, so check freshness and docs too.
- Are Deep Agents and LlamaIndex open source?
- Yes: Deep Agents is MIT and LlamaIndex is MIT.
Related
Cite this page
Deep Agents vs LlamaIndex. Agent Mart. https://agentmart.dev/compare/deep-agents-vs-llamaindex (last updated 2026-10-26)