The question everyone should ask
Early 2026, paying 20 euros a month for ChatGPT Plus seems normal. You sign up, type your question, get an answer. Easy, right? But have you stopped to think about what really happens to your data, how much you have spent, and who decides what you can or cannot do with “your” assistant?
Lets compare, with real numbers, what it means to use ChatGPT versus running your own AI assistant on your own machine.
💰 Cost: €240/year vs €0/year
ChatGPT Plus costs €20/month. That is €240/year. If you have been using it since 2023, you have already spent over €700. And the subscription only goes up: OpenAI has raised prices before and has “Pro” plans at €200/month.
With local AI, the cost is zero per month. Language models download for free (open-source licenses like Llama, Mistral, Qwen, Gemma). Your computer is the server. No subscription, no recurring bills, no surprises on the card.
- ChatGPT Plus: €20/month = €240/year = €1,200 in 5 years
- Local AI: €0/month = €0/year = €0 in 5 years
Even if you need more RAM or a graphics card to run larger models, that is a one-time investment that pays for itself in months.
🔒 Privacy: your data leaves vs your data stays
Every time you type something into ChatGPT, that information leaves your computer, travels across the internet, and reaches OpenAI servers. There it is stored, analyzed, and can be used to train future models (unless you explicitly opt out, something that changes every few months according to the terms of service).
What kind of things do you send to ChatGPT without thinking?
- Professional emails and business proposals
- Personal journals and private reflections
- Source code of private projects
- Financial data, budgets, calculations
- Medical or legal information
- Conversations with client data
With local AI, nothing leaves your machine. The model runs on your CPU or GPU. No connection to external servers. No telemetry. No “product improvements” based on your conversations. Your ideas, your data, your private life stays where it belongs: at home.
🎯 Dependency: they decide vs you decide
OpenAI decides which models are available, which features are enabled, what you can generate and what you cannot. From one day to the next they can change the model you use, limit the number of messages, or modify content policies. You have no say.
With local AI, you choose:
- Which model to use: Llama 3 for conversation, Mistral for code, Gemma for quick tasks. Switch whenever you want.
- How to configure it: Adjust creativity, tone, system instructions. It is your assistant, not a company.
- When to update: If a new model does not convince you, keep the old one. Nobody forces you to “migrate”.
- What filters to apply: You decide the limits of your assistant based on your values, not a corporation.
📊 The numbers do not lie
Let us see the full comparison:
| Concept | ChatGPT Plus | Local AI |
|---|---|---|
| Monthly cost | €20 | €0 |
| Annual cost | €240 | €0 |
| 5-year cost | €1,200 | €0 |
| Data on external servers | Yes | No |
| Works without internet | No | Yes |
| You choose the model | No | Yes |
| Full customization | Limited | Total |
| Risk of price increase | High | None |
| Risk of service shutdown | Yes | No |
What do you need to get started?
If you have a computer with 8 GB of RAM (most current laptops), you can already run local AI models. With 16 GB, medium models run smoothly. With a dedicated graphics card, the experience is exceptional.
Installation is literally three steps: install Docker, download the project, and start it. In less than three minutes you have your own private ChatGPT running.
Learn more
- Best Ollama models for WordPress — which model to choose for each task.
- Quick start guide — install a local AI stack in 3 minutes.
Conclusion
In 2026, you do not need permission from any company to have an AI assistant. The technology is ready, the models are powerful, and the cost is zero. The only thing you lose is the monthly billing.
Is your privacy worth 20 euros a month? The answer is easy.
Try local AI in 3 minutes — no account, no API key, no data leaving your machine.