Explainer Articles

In-depth explanations of AI concepts, architectures, and principles. Educational content that breaks down complex topics into understandable insights.

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Abstract geometric visualization of weighted token connections flowing through a neural attention grid
MONA explainer 9 min

Attention Mechanism: Scaled Dot-Product, Self vs Cross

Transformers use weighted averaging, not human-like focus: scaled dot-product, self-attention vs cross-attention, and …

Geometric visualization of vector spaces converging through dot product alignment into attention weight distributions
MONA explainer 9 min

From Embeddings to Attention: The Math You Need Before Studying Transformers

Master the math behind attention mechanisms — dot products, softmax, QKV matrices, and multi-head projections — before …

Geometric visualization of vector spaces and matrix operations underlying transformer attention mechanisms
MONA explainer 10 min

Prerequisites for Understanding Transformers: From Embeddings to Matrix Multiplication

Master the math behind transformers: embeddings, matrix multiplication, positional encoding, and multi-head attention …

Geometric attention matrix with query-key vectors converging across a sequence of tokens
MONA explainer 10 min

What Is the Transformer Architecture and How Self-Attention Really Works

The transformer architecture powers every major LLM. Learn how self-attention computes token relationships, why …

Geometric matrix grid expanding quadratically with heat-map intensity fading at the edges to visualize attention cost scaling
MONA explainer 9 min

Why Standard Attention Breaks at Long Contexts: The O(n²) Bottleneck and Attention Sinks

Standard attention scales quadratically with sequence length. Learn why O(n²) breaks at long contexts, what attention …

Geometric visualization of attention matrices expanding quadratically as sequence length grows
MONA explainer 10 min

Why Transformers Hit a Wall: Quadratic Scaling and the Memory Bottleneck

Transformer self-attention scales quadratically with sequence length. Understand the O(n²) memory wall, KV cache costs, …