Custom blocks allow LLMs to reply with specific formats which can be rendered as custom components in your application.

Formats

Json

【{ type:"buttons", buttons: [{text:"Button 1"}, {text:"Button 2"}] }】

• ✅ Good for advanced use cases
• ⚠️ High overhead of non-content characters

CSV

⦅Button 1,Button 2⦆

• ✅ Good for simple responses
• ✅ Low overhead of non-content characters (only: ⦅ , ⦆)