◆ Build Order OS · The Model Stack

Use the right model.Stop getting locked out.

A free setup that tells you which Claude model to use for each job, so you get way more usage for the same money. Pick the version that matches how you use Claude.

F5 Fable 5 O Opus 4.8 S Sonnet 5 H Haiku 4.5

Most people · Start here

I use the Claude website or app

You chat with Claude at claude.ai or in the phone app. No coding tools. If you’re not sure, this is you.

Open the beginner version →

Advanced users

I use Claude Code or Cowork

You build on your computer with Claude Code or Cowork. If you don’t know what those are, you don’t use them.

Open the advanced version →

Not sure? Pick the first one. That’s most people.

Build Order OS · Randy Kopplin