Local AI
The model files are stored on your SSD. Your computer's processor and graphics card do all the math. Your prompts and documents never leave your computer.
What is the fundamental difference?
The main difference between local and cloud AI comes down to where the computation happens and where your data travels.
Cloud AI
The models run in massive data centers. When you ask a question, it travels over the web, gets processed by servers, and the answer is sent back to your screen.
Key takeaway: Local AI gives you total privacy and control, while Cloud AI gives you massive compute power without needing a powerful computer.
Direct Side-by-Side Comparison
Here is how both approaches compare across the key aspects that matter most:
| Factor | Local AI | Cloud AI |
|---|---|---|
| Privacy & Data | 100% private. Files never leave your local drive. | Prompts are sent to third-party servers. |
| Internet Access | Works fully offline once downloaded. | Requires a constant internet connection. |
| Recurring Cost | Free (uses your existing hardware). | Often requires monthly subscriptions or API tokens. |
| Hardware Demands | Requires sufficient RAM and a good GPU/VRAM. | Runs on any device (phone, budget laptop, tablet). |
| Model Power | Limited by the memory size of your computer. | Access to frontier, cutting-edge giant models. |
| Usage Limits | No rate limits or question limits. | Providers may cap requests per hour/day. |
When should you choose Local AI?
Running models locally is ideal for situations where confidentiality and independence are your top priorities:
- Confidential work: Analyzing private financial records, confidential business documents, or proprietary source code.
- Offline work: When traveling, in remote areas, or in air-gapped environments without stable internet.
- Zero ongoing costs: When you want unlimited queries without worrying about subscription tiers or API bills.
- Learning & experimenting: Understanding how open-source models work directly under your control.
When is Cloud AI still the better choice?
Cloud AI remains unbeatable for raw reasoning power and convenience:
- Lightweight hardware: If you only have a basic laptop with limited RAM and no dedicated graphics card.
- Complex reasoning: Frontier tasks that require massive models (hundreds of billions of parameters) to solve intricate logic or math.
- Zero setup: You do not need to download multi-gigabyte files or configure desktop apps like LM Studio.
The Bottom Line
You do not have to choose just one. Many people use Cloud AI for broad, highly complex questions and keep Local AI installed on their PC for sensitive files, offline work, and day-to-day writing tasks.
Ready to try local AI? It only takes a few minutes to install LM Studio and test your first private model for free.
See how to get started