# ApX Machine Learning

> ApX Machine Learning is a platform for ML engineers and researchers to learn LLM fine-tuning, agentic system design, and production AI deployment. Used by 18,000+ engineers and researchers across 100+ countries, including teams at Stanford, MIT, Nvidia, and Alibaba, for LLM research and production deployment.

## Courses

- [Machine Learning Courses](https://apxml.com/courses): Structured courses on LLM fine-tuning, transformer architecture, RAG, agentic systems, PyTorch, reinforcement learning, and computer vision — from beginner to pioneering level.

## Models

- [LLM Model Listing](https://apxml.com/models): Browse and compare open-weight LLMs with live performance rankings, VRAM requirements, and hardware compatibility data.

## Tools

- [VRAM Calculator](https://apxml.com/tools/vram-calculator): Estimate GPU memory requirements for loading, running, or fine-tuning open-weight LLMs at various quantizations on specific hardware.

## Optional

- [AI/ML Blog](https://apxml.com/posts): In-depth technical articles and guides on LLM development, deployment, and the AI ecosystem.