If you focus on companies that invest in AI a lot like Meta and OpenAI or Apple you will see every one of them point to solve a problem. I found Apple solution interesting more than other which is Running AI locally on your device. Why it matters? i want you to read this blog post of mine so you can run an AI model on your PC or Laptop even if it's not a high-end device.
If you are not a Geek, you may not know this that this problem was unthinkable just a few years ago and only powerful computers can do that but nowadays with the help of OpenSource communities, it's not a dream anymore.
In this guide, we’ll explore why running AI locally matters, what hardware and software you actually need in 2025, and walk through a simple, practical setup to get your first local model running today.
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1. Why Run AI on Your Own Computer?
Running AI models locally offers too many benefits that may be a concern for you, let's get into that.
🔐 Full Privacy and Control
There is a famous meme on net: There is no Cloud, There is some one else computer
Why someone else see our chats, photos and everything else?
⚡ Instant Speed and Offline Access
Imagine your internet has much latency or weak upload speed to uploading your files and photos. What do you think about removing these kind of limitations?
An added bonus: local models work fully offline. No internet connection, no service outages, no rate limits.
💰 Long-Term Cost Savings
While there may be an upfront hardware investment, running models locally eliminates recurring API fees. You can perform unlimited inferences with no per-token or per-request cost, shifting expenses from ongoing operational fees to a predictable, one-time setup.For myself, No more Remaining token checking :))
2. What You’ll Need: Hardware
Years ago, AI scientist thinks that CPU is the main power we need for machine learning and AI but after testing and comparing, they found that
GPU (Graphics Processing Unit) is better and more efficient than CPU. GPUs excel at parallel processing, allowing them to handle thousands of operations simultaneously—something CPUs are not designed to do efficiently.
The VRAM Imperative
Video RAM (VRAM) is the single most important factor for running AI models locally.
Think of VRAM as the model’s workspace: if the model doesn’t fit, performance drops—or it won’t run at all. The amount of VRAM directly determines:
- How large a model you can load
- How fast inference will be
- How stable long-running sessions are
For a smooth experience with modern models, 8–12 GB of VRAM is the practical minimum in 2025.
Quantization, What Is That?
Let's learn one of most important words in the AI world. Quantization is a clever technique that shrinks AI models so they can fit into smaller VRAM budgets.
Imagine a professional photographer’s massive, high-resolution RAW photo. It’s incredibly detailed—but too large to quickly share or view on a phone. By compressing it into a JPEG, the file becomes much smaller and faster to load. While a tiny amount of detail is lost, the image remains visually excellent and far more practical.
Quantization works the same way for AI models. It compresses them dramatically, making them usable on consumer hardware with minimal—and often imperceptible—quality loss.
Pro Tip: When browsing models on platforms like Hugging Face, look for files labeled GGUF. These are pre-quantized models designed to run efficiently with tools like LM Studio and Ollama.
When You Need CPU and RAM
If a model is too large to fit into VRAM—even after quantization—the system falls back to using system RAM and the CPU.
In these scenarios, raw GPU speed matters less than memory bandwidth and stability. Surprisingly, server-grade CPUs can outperform GPU-heavy setups for certain workflows.
A Note on Apple Silicon
Apple’s M-series chips use a unified memory architecture, allowing the CPU and GPU to share a single, high-bandwidth memory pool. This design effectively sidesteps traditional VRAM limits, making Apple Silicon machines surprisingly capable of running very large models—often beyond what similarly priced discrete GPUs can handle.
Hardware Recommendations at a Glance
B Means Billion
| Model Size | Recommended Hardware |
|---|---|
| Smaller models (e.g. Llama 3 8B, Phi-3 Mini) | NVIDIA GPU with 8–12 GB VRAM and 16 GB system RAM |
| Larger models (70B+ parameters) | High-end GPU (24 GB+ VRAM), Apple Silicon Mac with 64 GB+ unified memory, or server-grade CPU with high-bandwidth RAM |
3. The Toolkit: Essential Software and Apps
To bring local AI to life, you need two things:
- A runner to load and interact with models
- Acceleration software to make inference fast
3.1 Choosing Your “Runner”
Think of an AI model as a powerful engine. A runner is the car built around it—it lets you start the engine, steer it with prompts, and see the results.
While your choice may depend on hardware and experience level, these three tools dominate the local AI ecosystem in 2025.
| Tool | Best For | Key Characteristics |
|---|---|---|
| LM Studio | Beginners & non-technical users | Polished GUI, built on llama.cpp, browse and download models inside the app, true “open and chat” experience |
| Ollama | Developers & tinkerers | Simple CLI, local API, easy automation, excellent performance—especially on Apple Silicon |
| llama.cpp | Power users | Upstream engine, fastest updates, maximum control and performance, requires compilation and CLI usage |
3.2 Behind the Scenes: Acceleration Software
Your runner talks to the GPU through specialized acceleration frameworks:
- NVIDIA GPUs: CUDA (the industry standard for AI acceleration)
- Apple Silicon: Metal (deeply integrated into macOS)
You typically don’t need to install these manually—up-to-date graphics drivers handle everything.
4. Your First Local AI: Step-by-Step (with LM Studio)
In this section, we’ll use LM Studio, one of the easiest and most user-friendly tools for running AI models locally.
The best part? You don’t need a GPU. LM Studio works perfectly with CPU-only systems, and will automatically use your GPU if you have one.
Step 1: Download and Install LM Studio
- Visit the official LM Studio website
- Download the installer for Windows, macOS, or Linux
- Install and launch the app — no command line required
LM Studio comes bundled with everything you need. No CUDA, no environment variables.
Step 2: Choose a Model
Once LM Studio is open:
- Go to the Models tab
- Browse or search for a model (for example: Phi-3 Mini, Llama 3 8B, or Mistral 7B)
- Choose a GGUF version (these are optimized and quantized)
- Click Download
💡 Tip: If your system has no GPU, start with smaller models (3B–8B). They run surprisingly well on modern CPUs.
You can also download your desired model from Huggingface site where is the Github of AI models.
Step 3: Run the Model (CPU or GPU)
After the download:
- Open the Chat tab
- Select your model
- Click Load Model
LM Studio automatically detects your hardware:
- If you have a compatible GPU, it will use it
- If not, it runs entirely on CPU
No extra configuration needed.
You can now start chatting with your local AI — fully offline.
Performance Expectations (Be Realistic)
- CPU-only: Slower responses, but totally usable for learning, writing, and experimentation
- GPU available: Faster responses and smoother interaction
- Apple Silicon: Excellent performance thanks to unified memory
The key takeaway: GPU is a performance upgrade, not a requirement. In my opinion, run a model with CPU is only for experimenting and learning. I Ran a small model with a 10th generation of Intel CPU and it takes a minute to write a paragragh with around 100 words.
5. Conclusion: Local AI Is for Everyone Now
Running AI locally is no longer an elite or expensive experiment.
Today, you can:
- Run models without internet
- Keep your data fully private
- Avoid API limits and monthly fees
- Start even with just a CPU
Tools like LM Studio have removed almost all friction. You don’t need to be a machine learning engineer, a Linux wizard, or own a high-end GPU.
If you have:
- A laptop
- Some free disk space
- Curiosity
You’re ready.
Download a model. Run it locally.
And experience AI on your terms.
Try this process as soon as possible that you have around one hour free time, it's worth it.
I maked cover photo and hardwares photo of this blog post with the help of chatbot ;)
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