Short answerOf the platforms we checked, TypingMind and Pickaxe publish their own Custom GPT migration guides, and OpenAI documents its plugin migration. We found none for Chatbase, Voiceflow, Botpress, Dify, Langflow, Relevance AI, StackAI, Open WebUI, LibreChat or CustomGPT.ai.
| Platform | Official migration guide? |
|---|---|
| OpenAI (plugins) | Yes: plugin migration |
| TypingMind | Yes: summary |
| Pickaxe | Yes (a blog guide): summary |
| Chatbase, Voiceflow, Botpress | None found; Botpress's blog says it is a manual rebuild |
| Dify, Langflow, Relevance AI, StackAI | None found |
| Open WebUI | None; its docs say ChatGPT-hosted GPTs cannot move over directly |
| LibreChat, Mistral Le Chat, CustomGPT.ai | None found |
Even where a guide exists, the move is manual: copy instructions, re-upload files, rebuild Actions. Use the checklist.
Check your GPT before you move it
Paste your instructions, file names and Actions schema into the free checker. It runs in your browser and builds a portable bundle. Nothing is uploaded.
Open the free checkerRelated guides
Sources
- TypingMind docs: Migrate from ChatGPT
- Pickaxe: How to rebuild a Custom GPT on Pickaxe
- OpenAI Help Center: Custom GPT retirement and migration FAQ
Pages describing other companies' products reflect their public documentation on the date shown and can go out of date.