Understanding Tokens and Context Windows

Chrispin Maamba — Wed, 08 Apr 2026 18:14:15 +0000

Tokens are the fundamental building blocks of Large Language Models (LLMs). At their core, LLMs function as chat completion systems that predict the next sequence of text based on the input provided. This text is broken down into small units called tokens.
Tokens are the basic unit of processing in LLMs. Whether you're chatting with an LLM or using advanced AI agents, everything — from input to output — is calculated and billed in tokens.
The context window refers to the maximum number of tokens (input + output) that an LLM can process in a single request. Understanding tokens and context windows is crucial because every token comes with a cost. Without being context-aware, it's easy to waste both tokens and money.
With a few simple optimizations, you can significantly reduce token usage and enjoy a smoother, more efficient experience when coding with AI agents.
Mastering tokens and context windows will not only help you save money but also enable you to write more precise, effective prompts — allowing you to get the most out of every interaction. Find out more in the full article below;
https://developer-chris.com/blogs/tokens-context-windows-and-cost-in-ai-assisted-coding

The Limits of AI: What I've Learned After Using It

Chrispin Maamba — Wed, 25 Feb 2026 12:28:14 +0000

The Limits of AI

AI is a revolutionary tool.

It lets developers, designers, and creators ship ideas at incredible speed.

“Read, stay curious and use the latest tools” — Bill Gates

But like every powerful tool, AI has real limits.

In my latest post, I break them down honestly:

Data is finite (and mostly scraped already)
No true serendipitous innovation or eureka moments
Risk of stagnation if we outsource too much creativity

It's not all doom-and-gloom — it's about using AI as an ally, not a replacement.

Full read here (with Dune quotes, dev stories, and mindset tips):

https://developer-chris.com/blogs/the-limits-of-ai

What limits have you hit with AI in your work? Drop a comment.

DEV Community: Chrispin Maamba

Understanding Tokens and Context Windows

The Limits of AI: What I've Learned After Using It

The Limits of AI