What is MCP (Model Context Protocol)?
A standard plug for connecting AI models to your tools and data.
AI Writing & Coding
Assistants that draft, edit and write code — comparisons, pricing and practical workflows.
11 articles
What is an LLM benchmark?
A standardised exam for models — and a number to treat with suspicion.
What is RLHF?
The training step that turned a text predictor into something worth talking to.
What is fine-tuning?
Teaching a model how to behave — not what is true.
What is chain-of-thought prompting?
Asking for the working, and getting a better answer as a side effect.
What is an embedding?
Turning meaning into coordinates — the trick that makes semantic search work.
What is a transformer?
The 2017 architecture underneath essentially every model you have heard of.
What is a context window?
The model's working memory — and the reason a long chat starts forgetting things.
What is a token?
The unit models read, count and bill in — and it is not a word.
Which Claude model should you use?
Four current models, one 1M-token window that is not the same size on all of them, and a tokenizer change nobody announced as a price rise.
AI coding assistant pricing compared
Five tools, five different ways of quoting a price — and one of them shows different numbers to different people.