Read the user guide first. It walks you through the five steps and how Seth fits in.

Download the Seth User Guide →

Yes. Seth works on the free tier of ChatGPT. You install it as a custom GPT and it runs inside your existing account. Free tier users hit usage limits more quickly — if you find yourself using Seth regularly, a ChatGPT Plus subscription (USD $20/month from OpenAI) gives you more capacity. But there is no requirement to upgrade before you start.

Immediately after purchase you'll receive an email with a direct install link. Click it, and Seth installs into your ChatGPT account in under 5 minutes. No downloads, no IT department, no setup beyond that.

The $395 individual install is for ChatGPT only. We offer Seth for Claude and Copilot as part of the Teams install — $4,950 for organisations who want it deployed across their whole team and multiple platforms. Head to the Teams page if that's you.

No. $395 once. No recurring charges. Use it for as long as ChatGPT supports custom GPTs.

Anything you'd send to someone who needs to understand it, act on it, or decide from it. Emails, proposals, capabilities statements, board updates, client briefs. If the message matters, Seth is worth running it through.

Seth is built to find something worth improving in almost any piece of communication. If you run your first message through it and genuinely come away with nothing useful, contact us at admin@appliedthinking.com.au. We'd rather fix that than keep your money.

Download the Safety & Governance document →