Open-Source ChatGPT Alternatives That Don't Lock You In
Drop the ChatGPT subscription. Run your own AI chat with Open WebUI. Unlimited team members. Your data stays yours. No per-user fees.
ChatGPT Plus costs $20 per month per user. Your conversations train their models. You're locked into OpenAI.
For a team of 10, that's $2,400 per year. Add 50 people and it becomes $12,000. Meanwhile, you have no control over uptime, pricing, or data residency.
Open-source alternatives like Open WebUI flip this model. One fixed monthly fee covers your entire team. Your conversations stay on your infrastructure. You choose which models to run--from free local Ollama to any OpenAI-compatible API.
For teams managing costs or required by law to keep data on-premise (GDPR, healthcare, finance), open-source is not optional. It's the only choice.
Why teams switch from ChatGPT Plus to open-source
Pricing as of June 2026. ChatGPT Plus is $20/mo per person. Opsily Small: $20/mo total for unlimited users.
Open WebUI is the most popular open-source ChatGPT alternative. It gives you a polished, familiar interface for running local models via Ollama or connecting to APIs like ChatGPT, Claude, or Mistral.
LibreChat is another strong option if you want to switch between multiple AI providers in one chat. AnythingLLM specializes in document-based AI (RAG) and works well for knowledge bases. LocalAI and text-generation-webui serve power users who want maximum control.
All of these run on Opsily at the same monthly price: $20 for a small team, $70 for established small businesses. Add as many team members as you need at no extra cost. Compare that to ChatGPT Plus at $20 per person.
The trade-off is simple: you manage the choice of models and integrations, but Opsily manages the infrastructure, backups, SSL, and updates. You get the benefits of self-hosting without the server maintenance headache.
Deploy open-source ChatGPT in 4 minutes
No Docker knowledge. No infrastructure to build.
Choose Your App
Select an app to get started.
Pick your interface and models
Choose Open WebUI (polished ChatGPT clone) or LibreChat (multi-provider). Decide: use free local Ollama, or plug in your ChatGPT API key.
Deploy on Opsily
Search the app catalog, click 'Install', pick your server plan ($20-100/mo), and your AI chat is live. Opsily handles Docker, SSL, and backups.
Invite your team
Create accounts for every team member at no extra cost. Each person gets their own login, conversation history, and role permissions (admin or user).
Start building
Chat with AI models. Upload documents for RAG search. Connect to your own APIs. Every conversation and file stays encrypted on your server.
Saved per year for a team of 10
ChatGPT Plus: 10 users x $20/mo x 12 months = $2,400/year. Opsily Small: $20/mo x 12 = $240/year. That's 90% less. Scale to 50 people and you're saving $11,000 every year.
Why Opsily for open-source AI chat
Self-hosting is powerful. Managing servers is not.
Zero DevOps burden
You do not manage Docker, Kubernetes, Linux upgrades, or SSL certificates. Opsily does. Deploy in 3 minutes and hand off all infrastructure work. This is the entire value: skip the 'self-hosted nightmare' stories you read online and get the benefits without the burden. Most teams abandon self-hosted apps when they realize how much work they are. Opsily eliminates that problem.
Your data never leaves your control
Every conversation, every uploaded PDF, every API key: stays on Opsily's servers in your chosen region (Germany, EU, US). No third parties. No vendor training models on your data. This is why GDPR teams prefer Opsily. Your data residency is guaranteed by contract. It's not cloud infrastructure sold to you by a US company. It's your private AI chat, hosted in the country you choose.
Unlimited team members, one price
ChatGPT Plus charges per seat. Open WebUI on Opsily does not. Ten people, fifty people, two hundred people: the bill stays the same. This breaks the SaaS unit economics that make AI chat so expensive. Teams often don't realize until too late that adding one AI tool per person multiplies their monthly costs. Opsily charges one flat fee for the entire team, no matter how many people join.
Built for teams who need reliability
Pricing that doesn't punish you for growth
Every plan includes automated backups, security updates, SSL, role-based access, and unlimited team members. No setup fees. No per-user surcharges.
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Built for teams with compliance needs
Open-source ChatGPT on Opsily is not just cheaper. It's the only way to meet strict data rules.
GDPR compliant
EU data residency in Germany. No data transfer to the US. Full compliance with GDPR Article 32.
Encrypted at rest and in transit
Military-grade TLS 1.3 encryption. AES-256 database encryption. Your conversations are never readable by Opsily staff.
Zero vendor lock-in
Open WebUI uses open standards. Export your data anytime. Run the same app on another provider if you leave. Your data is portable.
Daily encrypted backups
All plans include automatic daily backups stored separately from your live system. Restore to any point in the last 30 days.
Sovereign open-source
Open WebUI is MIT licensed and open-source. No proprietary black boxes. No hidden data collection. Full transparency.
Questions about open-source ChatGPT
Open WebUI is the most accessible option. It gives you a ChatGPT-like interface for running local models with Ollama or connecting to APIs like ChatGPT, Claude, or Mistral. The UI is modern, responsive, and works exactly like users expect. LibreChat is another solid option if you want to switch between multiple AI providers in one chat interface. AnythingLLM is specialized for document-based AI and works well for teams building knowledge bases. All three are available on Opsily at the same fixed monthly price.
Stop paying per user for AI chat.
Deploy Open WebUI on Opsily. Unlimited team members. One transparent price.