ai architecture

Inner Workings of ChatGPT-4 AI Attention Blocks, Feedforward Networks, and More

At its core, ChatGPT-4 is built on the Transformer architecture, which revolutionized AI with its self-attention mechanism. Below, we break down the key components and their roles in generating human-like text. 1. Transformer Architecture Overview The Transformer consists of encoder and decoder stacks, but GPT-4 is decoder-only (it generates text autoregressively). Key Layers in Each Block:…

Read More
NEOVLM

Implementing KV Cache from Scratch in nanoVLM: A 38% Speedup in Autoregressive Generation

Introduction Autoregressive language models generate text one token at a time. Each new prediction requires a full forward pass through all transformer layers, leading to redundant computations. For example, generating the next token in: [What, is, in,] → [the] requires recomputing attention over [What, is, in,] even though these tokens haven’t changed. KV Caching solves this inefficiency by…

Read More
Home
Courses
Services
Search