Modern messaging workflows are rarely simple. People don’t always answer with perfect keywords, and conversations often include slang, typos, or indirect responses. That’s where Split by AI comes in.
The Split by AI action lets you automatically categorize incoming messages using a large language model (LLM) and route contacts down the right path in your flow.
Instead of relying on rigid keyword rules like “if message contains ‘refund’ → go here”, you define simple natural-language categories, and the AI handles the interpretation. It understands intent, even when the wording varies.
Think of it as giving your chatbot the ability to read between the lines.
Traditional keyword-based routing breaks easily:
Split by AI handles all of these variations by focusing on meaning, not exact words.

Automatically route incoming messages to the right team:
You can even go further:
Not all feedback should be treated the same way.
You can use this to: - Trigger apology messages - Route angry users to human agents - Flag feedback for product teams
Open-ended survey answers become structured data automatically:
Instead of manually reading hundreds of responses, you get clean categories instantly.
Use AI to understand intent in inbound leads:
This helps sales teams prioritize real opportunities.
For commerce or service flows:
Setting it up is straightforward:
Select the LLM you want to power the decision-making.
Usually this is the contact’s latest message, such as @input.text.
Write the exact labels you want the AI to choose from (for example: Billing, Support, Sales).
Store the selected category in a variable like ticket_type for later use in your flow.
It helps to think of these two tools as doing very different jobs:
A simple rule of thumb:
- Use Split by AI when you need a decision
- Use Call AI when you need content
Split by AI brings structure to messy, real-world conversations. Instead of trying to predict every possible phrase a user might type, you define intent categories and let AI do the interpretation work.
The result is simpler flows, smarter routing, and a better experience for your users—especially at scale.