Free guide

How to Have Multiple AI
Work on the Same Project

Write once. Run it anywhere.

One portable setup that works in Claude, ChatGPT, Gemini, or Grok, so you are never locked to one model.

Who it is for

Builders who refuse to be locked to one vendor.

Level: Intermediate 15 to 18 pages Tested prompts Worked example inside
What you get out of it

Two ways this pays you back

Use it for yourself

Model-proof your work

Your setup survives every model release, outage, and price change.

Use it in business

Vendor-neutral is a feature

Clients trust a system that is not chained to one company.

What's inside, part by part

01
The portable recipe. Your instructions, written once, in a form every model reads.
02
Set it up in each model. Claude, ChatGPT, Gemini, and Grok, door by door.
03
One source of truth. Change the recipe in one place and every model follows.
04
Switch without rewrites. Move the work when a new model drops or a price changes.
05
Which model for which job. Play each one to its strength.
What you get

The full guide as a polished PDF, tested prompts ready to paste, a worked example with real numbers, delivered free by email.

What you need

Accounts on the models you use.

The tools it uses

ClaudeChatGPTGeminiGrok

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the haiko vault · built by @haiko