head to head · open source
llama_index vs neuron-ai
llama_index has 52,779 GitHub stars, 8,500 forks, 770 open issues and last shipped 8 days ago. neuron-ai has 2,164 stars, 258 forks, 5 open issues and last shipped yesterday. llama_index leads on adoption by 2,339% (52,779 vs 2,164 stars). llama_index is written in Python under MIT; neuron-ai is written in PHP under MIT. llama_index has attracted 16% as many forks as stars, neuron-ai 12%. neuron-ai was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 3 topic tags (agents, llm, vector-database), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| llama_index | neuron-ai | |
|---|---|---|
| GitHub stars | ★ 53K | ★ 2.2K |
| License | MIT | MIT |
| Written in | Python | PHP |
| Last push | 2026-10-26 | 2026-11-02 |
| Forks | ⑂ 8.5K | ⑂ 258 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick llama_index if
- You weight community size — 53K stars and counting
- You want the MIT license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick neuron-ai if
- You want the neuron-ai feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches PHP
- You evaluated both and neuron-ai fits your workflow better
About llama_index
🗂️ LlamaIndex (OSS Framework) 🦙 [!NOTE] The current focus of LlamaIndex is to build the best AI powered engine for document parsing and extraction. LlamaParse is our enterprise platform for agentic OCR, parsing, extraction, indexing and more. LiteParse represents our efforts to build the best free, fast, cheap text parser in the market. ParseBench and ExtractBench represent our commitment towards open benchmarking for parsing and extraction. The company itself has undergone an evolution since when this OSS framework first launched 3 years ago in 2023. Since the early days, the framework has consisted of a…
read the full llama_index overview →
About neuron-ai
Create Full Featured Agentic Applications in PHP [!IMPORTANT] Get early access to new features, exclusive tutorials, and expert tips for building AI agents in PHP. Join a community of PHP developers pioneering the future of AI development. Subscribe to the newsletter Before moving on, support the Neuron AI community giving a GitHub star ⭐️. Thank you! What is Neuron? Neuron is a PHP framework for creating and orchestrating AI Agents. It allows you to integrate AI entities into your PHP applications with a powerful and flexible architecture. We provide tools for the entire agentic application development…
read the full neuron-ai overview →
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Frequently asked questions
Is llama_index or neuron-ai more popular?
llama_index has 52,779 GitHub stars and neuron-ai has 2,164. llama_index has the larger community by that measure.
Are llama_index and neuron-ai free?
Both are open source. llama_index is licensed under MIT and neuron-ai under MIT. Neither carries a licence fee.
What is the difference between llama_index and neuron-ai?
llama_index is written in Python and neuron-ai in PHP. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, llama_index or neuron-ai?
Choose llama_index if you want the larger community (52,779 stars) or its MIT licence terms. Choose neuron-ai if its feature set, stack or MIT licence fits better. Both are self-hostable.