GPT Migrator
Platform-specific migration guides

How to move a Custom GPT to Voiceflow

Last checked October 18, 2026
Short answerVoiceflow has no official Custom GPT import guide we could find. Rebuild by pasting your instructions into the global prompt, importing documents (PDF, TXT, DOCX up to 10 MB each) and recreating Actions as API or function tools. Its pricing page published no dollar prices when we checked.

From Voiceflow's official docs, checked October 18, 2026.

How the parts map

Your GPTIn Voiceflow
InstructionsThe Global prompt, applied every turn (sections such as Role, Goal, Tone, Guardrails). Separate Instructions control routing and skills
Knowledge filesDocs (.pdf, .txt, .docx, 10 MB each), Tables (.csv, .xlsx), web pages, sitemaps, text
ActionsAPI tool (GET, POST, PUT, PATCH, DELETE with headers and body) or Function tool (JavaScript sandbox, 1 MB response limit)
SharingChat widget, phone and SMS options, or your own interface via the Conversations API

Good to know

Steps are the same as the general process; rewrite ChatGPT-specific lines first: rewriting instructions.

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 checker

Related guides

Sources

Pages describing other companies' products reflect their public documentation on the date shown and can go out of date.