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When editing an assistant, you choose between the AI Prompt Editor (large text prompt) and the Flow Builder (visual structure). The Flow Builder is built for clear rules and branching—especially outbound and sales calls—while a classic prompt-first setup often fits receptionist-style assistants.

Prompt Editor vs. Flow Builder (quick guide)

AI Prompt EditorFlow Builder
Best forReceptionists, general inbound helpers, linear dialogueOutbound, sales scripts, objection handling, big branchy logic
ShapeOne (or few) consolidated promptsNodes and paths on a canvas

Starting the Flow Builder

Open the assistant, then launch the Flow Builder (alongside the prompt editor). Pick a template or start from scratch—same idea as with templates for the text editor.

Node types

Use Add node to insert:
  • Start — Opening message: how the assistant greets the caller.
  • Speak — Exact script for the model to read (options such as word-for-word delivery and phonetic number reading where available).
  • Prompt — Flexible instructions (e.g. qualify interest, handle objections). You can add result branches (for example “interested” vs. “not interested”) and wire each path to the next step or to end call.
  • Action — Triggers such as booking or call forwarding (and other automations, depending on your setup).
  • End call — When to hang up (e.g. after a negative response).

Side settings

In the panel you can adjust identity, first message, and conversation type (e.g. sales, applicant screening, product feedback, customer service). Set language, personality sliders (e.g. assertiveness, humor), voicemail text, variables (e.g. first name from a lead list), and post-call webhooks for summaries or downstream automation.

Import / export

Export and import let you download a flow and reuse it in other assistants (copy into another assistant as needed).
Use one or the other: You work with either the AI Prompt Editor or the Flow Builder. If you already built a full prompt and then switch on or save the Flow Builder flow, the prompt-editor content can be replaced—plan accordingly and export backups if needed.
For the full UI reference (toolbar, canvas, node details, shortcuts), see Flow Builder.
Related: AI Prompt Editor, Prompt & Tools.