Flow library
The flow behind Chat by LetBe.ai: documents in, grounded answers out
Chat by LetBe.ai is a hosted chat that answers visitors only from the owner's uploaded documents and pages. It runs as one LetBe.ai flow: a User Input block, a document search, a Prompt, an AI Model and a Guardrail. This page shows that chain.
Free to start. No card needed.
The block chain
Every visitor message travels this path. Each block does one job and hands the result to the next.
Takes the visitor's question from the chat page or the embedded widget.
Finds the passages of the owner's uploaded files and pages that answer it.
Holds who the chat is, how it sounds, and the rule to answer only from the found passages.
Writes the reply from the passages. Model chosen in the builder, no key needed.
Keeps the reply on topic and polite, and turns an uncovered question into a plain decline.
Goes back to the chat page, the shareable link or the iframe embed.
Structure only. The instructions inside the Prompt blocks and the documents behind the search are the product's own and stay private; you write yours.
Try it, build it, keep what is yours
Build the same shape
Paste the description below into the portal's scenario builder. It drafts these blocks with empty prompts.
Fill the gaps yourself
Your instructions, your documents, your rules. The product's own prompt text is never published.
Build this shape in the portal
Open the portal, choose Describe, and paste this. The scenario builder drafts the blocks above with empty prompts, and you fill in your instructions, documents and rules.
Then test it in the chat console next to the canvas, and publish it as a live address or a shareable chat page. Free to start, no card, nothing to host. The AI flow builder page explains each block type.
Chat flow questions
Is this the exact scenario running Chat?
It is the same block chain. The prompt text, the guardrail rules and the owner documents are private; this page shows the structure so you can build your own.
Can I build this without the product?
Yes. Paste the description above into the portal's scenario builder, upload your own files and test it in chat. Chat by LetBe.ai is the ready-made, hosted version with a dashboard and embed.
Where do the documents live?
On LetBe.ai. The document block stores and searches them for you; nothing runs on your side.
What does it cost to run?
Free to start with the credits every new account gets, then prepaid usage per conversation. The pricing page has the rates.
Free to start. No card, nothing to host. Pricing