Reviewed by the Softwares.com Editorial Team · Last updated June 2026 · How we rate
Key facts
- Vendor
- LlamaIndex
- Pricing
- Open source — Free
- Free tier
- Yes
- Platforms
- Self Hosted, Api, Web
- Best for
- Developers, Ai Engineers
- Editor rating
- 4.6 / 5
- Founded
- 2022
- Headquarters
- San Francisco, CA, USA
What is LlamaIndex?
LlamaIndex is a ai machine learning tool from LlamaIndex. LlamaIndex is an open-source data framework for connecting custom data sources to LLMs for retrieval-augmented generation and agents.
LlamaIndex uses open source pricing and offers a free tier you can start on without a credit card. Free.
It's best suited to developers, ai-engineers and runs on Self Hosted, Api, Web.
Standout strengths include strong rag and indexing primitives, llamaparse for complex documents, large connector library. Worth weighing: fast-moving api surface, managed cloud pricing is usage-based.
LlamaIndex pricing
Pros
- Strong RAG and indexing primitives
- LlamaParse for complex documents
- Large connector library
Cons
- Fast-moving API surface
- Managed cloud pricing is usage-based
LlamaIndex vs alternatives
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Frequently asked questions
What is LlamaIndex?
LlamaIndex is an open-source data framework for connecting custom data sources to LLMs for retrieval-augmented generation and agents.
How much does LlamaIndex cost?
LlamaIndex is open-source-priced. It has a free tier.
Does LlamaIndex have a free trial?
LlamaIndex offers a free tier rather than a time-limited trial.
What platforms does LlamaIndex support?
LlamaIndex is available on Self Hosted, Api, Web.