Question 1

How long does it take to set up Open WebUI on Opsily?

Accepted Answer

Three minutes. Sign up for Opsily. Go to the apps catalog and click 'Install' for Open WebUI. It deploys automatically to your German server. You get a live URL immediately. No server configuration. No terminal commands. No technical knowledge required. That's it.

Question 2

How much does Open WebUI, a self-hosted gpt alternative, cost vs ChatGPT Plus?

Accepted Answer

A 10-person team using ChatGPT Plus pays €180/month (€18/user × 10). Opsily's Large plan costs €70/month, includes unlimited users, and supports Claude, GPT-4, Mistral, and more. That is €110/month saved, or €1,320/year. A 50-person enterprise would spend €900/month on ChatGPT Plus but only €100/month on Opsily's Unlimited plan. Per-user pricing scales painfully. Flat pricing scales gracefully.

Question 3

Is Open WebUI GDPR compliant and EU-hosted?

Accepted Answer

Yes on both counts. Opsily hosts Open WebUI on servers in Germany. All your chat history, uploaded documents, and API keys stay within the EU by default. We do not train models on your data. No US data transfer happens unless you explicitly connect to a US-based API like OpenAI. For teams in healthcare, legal, finance, or any regulated industry, EU hosting is non-negotiable. GDPR compliance is built into the architecture, not added later.

Question 4

Can I use Claude, GPT-4, and Mistral all in the same Open WebUI instance?

Accepted Answer

Yes. Open WebUI supports multiple LLM providers simultaneously. Add your API keys for Claude (via Anthropic), GPT-4 (via OpenAI), Mistral, GroqCloud, or any OpenAI-compatible endpoint. Switch between models in a single conversation without losing context. This is the core advantage over ChatGPT Plus: flexibility and freedom. No vendor lock-in. No retraining workflows.

Question 5

What is RAG and why does it matter?

Accepted Answer

RAG stands for Retrieval Augmented Generation. It lets you upload PDFs, spreadsheets, notes, or documents. Open WebUI indexes them and pulls answers from your own documents, not from the model's training data. This is critical for confidential information (contracts, internal policies, customer data, research). Open WebUI on Opsily supports 9 vector databases (ChromaDB, Qdrant, Pinecone, and others) so you scale without rearchitecting. ChatGPT Plus does not have RAG.

Question 6

What happens to my data if I leave Opsily?

Accepted Answer

You own your data. If you're on Opsily managed hosting, we give you a full backup. You can export your chat history, model connections, and user roles. Self-hosted Open WebUI stores everything in a database file you control. Zero lock-in.

Question 7

Can I be locked out or rate-limited on Open WebUI like I am on ChatGPT Plus?

Accepted Answer

No. ChatGPT Plus caps you at 40 messages per 3 hours. Open WebUI has no message limits. Your infrastructure is yours. As long as your Opsily plan can handle the load, you can send unlimited requests. This matters for teams doing heavy AI work: code generation, content production, data analysis. No artificial rate limits. No surprise throttling.

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