Model guides

How to use and pay for AI models

Which AI Model to Use: How to Match a Model to Your Task

Text, image, video or audio? Fast or flagship? A step-by-step way to choose an AI model by output, inputs, stakes and cost per run, with a cheat sheet.

7 min readSeptember 25, 2026

Model guides

Claude vs ChatGPT: Which One to Choose for Writing, Code and Work

We compare Claude Opus, Sonnet and Haiku with ChatGPT 5.5 and 6 on writing, code, file inputs and cost per run, so you can pick one for your own tasks.

7 min readSeptember 23, 2026