A Claude Projects alternative that works in every AI model

Claude Projects is genuinely useful — inside Claude. The catch is structural: the context you build there serves Claude chats. It cannot brief ChatGPT, Gemini, or whatever model wins next quarter. Promptmkr keeps your project's goal, context, and rules in a neutral record that can brief any model — one click in supported chats with the free Chrome Companion, copy-paste anywhere else.

Start a portable project — free → Grade a prompt first →

Why people look for a Claude Projects alternative

They work across more than one model — Claude for writing, ChatGPT for analysis, Gemini for research — and re-explain the same project to each one.
Their project knowledge is locked to one vendor's account. Cancel, switch, or hit a usage cap, and the context stays behind.
They want the project record to include working assets — saved prompts with variables, standing rules, current state — alongside the background context vendors' project features already hold.
They want to resume work in whichever model is open, without rebuilding the briefing by hand.

None of that is a flaw in Claude Projects. It is the definition of a single-vendor feature. If you only ever use Claude, keep using it. If your work spans models, keep reading.

Single-model project vs portable project record

Job In-model project (any vendor) Promptmkr (portable record)

Where context lives Inside one vendor's product and account. In a neutral record you own — goal, key context, standing rules, current state.

Briefing a fresh chat Automatic — but only in that vendor's chats. One-click primer, formatted for the model you're opening (Claude, ChatGPT, Gemini, and more).

Switching models Start over: re-explain the project by hand. Prime the new model from the same record.

Prompts Persist in that vendor's workspace — instructions, files, project knowledge — but stay there. Saved as structured, reusable templates with {{variables}}, attached to a project that travels.

Progress Remembered within that vendor's project — invisible to every other model. Logged to a neutral record — the next primer starts from where you stopped, in any model.

How a Promptmkr project works

Store the project once. Goal, key context, standing rules, what not to do, current state. Write it once instead of retyping it into every fresh chat.
Prime the model you're opening. One click in supported chats (ChatGPT, Claude, Gemini, Grok, Perplexity, Copilot) via the free Chrome Companion; copy-paste for anything else. The primer is formatted for the target — structured XML for Claude, Markdown for ChatGPT — so the model starts oriented, not cold.
Attach your working prompts. The prompts you reuse live with the project as templates with variables, not as pastes buried in chat history.
Log where you stopped. Update the project's current state and next move; tomorrow's primer — in any model — picks up from there.

The free plan includes one project and three one-click primers — a one-time allowance, not monthly — so you can feel the switch-without-re-briefing loop before paying anything.

What not to expect

Promptmkr is not a chat app. You still work inside ChatGPT, Claude, or Gemini — Promptmkr briefs them.
There is no automatic import from Claude Projects or any vendor's project feature. You move a project by writing its context into the record once.
Promptmkr does not upload and index document libraries. The record holds the distilled brief — goal, context, rules, state — not a file archive.

If everything you do lives in one model and always will, its built-in projects feature is the simpler choice. Promptmkr is for work that outlives any single chat window — and any single vendor.

Set up your first portable project

Write the brief once. Prime any model with it for as long as the project lives.

Start free → See how projects work →

Moving between specific models? See how to move a ChatGPT project to Claude without re-explaining everything.

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