LlamaIndex vs NVIDIA NeMo Agent Toolkit
LlamaIndex and NVIDIA NeMo Agent Toolkit are both agent frameworks. LlamaIndex is published by LlamaIndex and NVIDIA NeMo Agent Toolkit by NVIDIA. On GitHub, LlamaIndex has 52,641 stars and NVIDIA NeMo Agent Toolkit has 2,670. Both were last active in Oct 2026. The table lines up where they differ (publisher, license, GitHub stars and weekly downloads) and has the install commands for both. Everything here comes from the listings' public sources and is refreshed daily. LlamaIndex describes itself as: Open-source Python toolkit for RAG and agents over your own data, with event-driven workflows and 300+ integration packages. NVIDIA NeMo Agent Toolkit: Open-source NVIDIA library that connects existing agents to tools and data, with profiling and LangSmith tracing; deprecated, EOL end of 2026. Licenses: LlamaIndex MIT, NVIDIA NeMo Agent Toolkit Apache-2.0.
Updated Oct 26, 2026 · Built from catalog data; how we rank and grade
LlamaIndex
LlamaIndex
Open-source Python toolkit for RAG and agents over your own data, with event-driven workflows and 300+ integration packages.
NVIDIA NeMo Agent Toolkit
NVIDIA
Open-source NVIDIA library that connects existing agents to tools and data, with profiling and LangSmith tracing; deprecated, EOL end of 2026.
Who should pick which
- Pick NVIDIA NeMo Agent Toolkit if you want a stable release (LlamaIndex is marked beta).
- LlamaIndex has the larger community: 52,641 GitHub stars against 2,670.
From listing data only. We don't pick a winner on security beyond the grades; read how grades work.
Side by side
| Fact | LlamaIndex | NVIDIA NeMo Agent Toolkit |
|---|---|---|
| Type | Harness | Harness |
| Publisher | LlamaIndex | NVIDIA |
| License | MIT | Apache-2.0 |
| 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 | 52,641 | 2,670 |
| Weekly downloads | 1,391,530 | 30,063 |
| Last release | Sep 21, 2026 | Sep 10, 2026 |
| Last activity | Oct 14, 2026 | Oct 23, 2026 |
Facts from each listing's public sources, checked daily. Tool lists arrive with tool scans.
Install
LlamaIndex
pip install llama-index
NVIDIA NeMo Agent Toolkit
pip install nvidia-nat
Also consider
- 0.851score
Strands Agents
AWS
Open-source Python and TypeScript SDK for model-driven agents, with tools, MCP, multi-agent patterns and streaming.
HarnessAFreshness: A★ 8.9K↓ 8.9M/wk - 0.841score
GitHub Copilot SDK
GitHub
Multi-language SDKs for embedding the GitHub Copilot agent runtime, with planning, tool calls and file edits, in your apps.
HarnessAFreshness: A★ 10.6K↓ 1.2M/wk - 0.799score
Genkit
Google
Open-source Firebase framework for AI features and agent workflows in JavaScript, Go, Python and Dart, with model plugins.
HarnessAFreshness: A★ 6.5K↓ 95.8K/wk
Questions
- Is LlamaIndex or NVIDIA NeMo Agent Toolkit more popular?
- LlamaIndex has more GitHub stars (52,641 against 2,670). Stars measure attention, not quality, so check freshness and docs too.
- Are LlamaIndex and NVIDIA NeMo Agent Toolkit open source?
- Yes: LlamaIndex is MIT and NVIDIA NeMo Agent Toolkit is Apache-2.0.
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Cite this page
LlamaIndex vs NVIDIA NeMo Agent Toolkit. Agent Mart. https://agentmart.dev/compare/llamaindex-vs-nvidia-nemo-agent-toolkit (last updated 2026-10-26)