Question 1

What's the best open source LLM UI: LibreChat, Open WebUI, or AnythingLLM?

Accepted Answer

**LibreChat:** Most features. Multi-LLM switching, image generation, plugins, RBAC, conversation streaming, token tracking. Best if you want everything. **Open WebUI:** Lightweight and fast. Built for Ollama and OpenAI APIs. Fewer dependencies, easier to deploy. Best for simplicity. **AnythingLLM:** Document-focused. RAG (retrieval-augmented generation), knowledge base chat, custom workflows. Best for knowledge management. All three run on Opsily.

Question 2

Do I need a GPU to run these tools?

Accepted Answer

It depends on your setup. If you use external APIs (OpenAI, Anthropic, Mistral), no GPU needed. The API provider handles compute. If you want local models with Ollama, a GPU speeds things up significantly, but CPU-only works on modern hardware. Opsily can run either setup and will size your infrastructure accordingly.

Question 3

How much does it cost compared to ChatGPT?

Accepted Answer

ChatGPT Plus costs $20 per user per month. For 10 people, that's $2,400/year. LibreChat on Opsily Small plan is $30/month (up to 3 apps), or Medium at $40/month (up to 5 apps). A team of 10 pays $30-40/month shared. You can also mix API providers: OpenAI for some tasks, cheaper Mistral for others, to optimize costs further.

Question 4

Is this GDPR compliant? Can I use it in the EU?

Accepted Answer

Yes. EU regulations (Schrems II ruling from CJEU 2020) restrict sending data to US-based SaaS. Self-hosted LLM UIs on EU infrastructure are GDPR compliant by design. Opsily keeps all data in German data centers. No US data transfer, no legal ambiguity. We handle encryption, backups, disaster recovery, and audit readiness.

Question 5

Can I migrate from ChatGPT without losing my data?

Accepted Answer

You'll start fresh with a new interface, which is actually a good opportunity to organize. LibreChat supports conversation export (JSON, PDF) if you want to archive old chats. The real migration is your API key: add your OpenAI key to LibreChat's settings, and you keep the same token costs but gain multi-LLM flexibility. You're no longer locked into expensive ChatGPT Plus.

Question 6

Should I self-host my own LLM interface, or use Opsily?

Accepted Answer

You can do either. All three tools are open-source and free to self-host. You'll need a server, Docker knowledge, certificate management, monitoring, backups, and 10+ hours per month for ops. That's fine if you have DevOps skills and time. Opsily is for teams that want everything working in 5 minutes without the ops overhead.

Question 7

Are these projects production-ready? Who maintains them?

Accepted Answer

All three are production-ready and actively maintained. LibreChat: 100+ contributors, 18.5K stars, latest commits June 2026. Open WebUI: 50+ contributors, 25K+ stars, rapidly growing. AnythingLLM: 40+ contributors, 10K stars, niche leader. Thousands of teams use them in production. The code is public and auditable, so you can verify quality yourself.

Question 8

Can my team collaborate? Are there team features?

Accepted Answer

Yes. LibreChat has team workspaces, role-based access control (RBAC), conversation sharing, and user management. Open WebUI supports multiple user logins with simple auth. AnythingLLM has team workspaces and knowledge base sharing. All three preserve conversation context so your team can pick up where others left off without repeating context.

Question 9

What if Opsily goes down? Can I export my data and leave?

Accepted Answer

Opsily maintains 99.9% uptime SLA with automated failover. But yes, you own your data completely. Export conversations, settings, and configurations anytime in standard formats. Migrate to any other host or self-hosted setup without friction. You're never locked in. The code is open-source, the data is yours.

Question 10

Can I use local open-source models like Ollama?

Accepted Answer

Yes. LibreChat and Open WebUI both support Ollama. Run local open-source models (Llama 2, Mistral, Phi) on your infrastructure or Opsily servers. This is the ultimate flexibility: free open-source models, your data stays local, zero API costs. Combine local models with cloud APIs for cost optimization and redundancy.

Open Source LLM UI: Your Alternative to ChatGPT

Why open source matters

The three leaders

LibreChat vs ChatGPT: The Numbers

Why Opsily Hosts Open-Source LLM UIs

Zero Setup Complexity

GDPR and EU Data Residency

Avoid the DIY Tax

Built for teams who need reliability

Deploy Your Open-Source LLM UI in 4 Steps

Choose Your App

Create your Opsily account

Pick your LLM UI

Add your API keys

Invite your team

Save per year, switching from ChatGPT

Enterprise Security and Compliance

GDPR Compliant

ISO 27001 Security

No Data Mining

Automatic Updates

Full Data Control

Frequently Asked Questions

Stop Paying $20 Per Month Per User for ChatGPT