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Blend AI is a visual canvas for making AI workflows. You connect models, prompts, files, tools, choices, and User Result nodes, then run the workflow to see what happens. The main use case is not writing integration code first. It is building a workflow you can test, compare, improve, and reuse. There are two primary ways to use workflows:

Experiment on the canvas

Build workflows on the Gen Canvas, try different models and prompts, batch variations, compare outputs, and keep iterating.

Publish a runner

Turn a workflow into a reusable page. User Input nodes become form fields, User Result nodes become outputs, and public workflows can charge a creator fee.
The API is optional. When a published workflow needs to run from your app, script, backend, or scheduled job, the same published workflow can also be called over HTTP.

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How workflows work

1

Build a workflow

Open the workflow canvas, add nodes, connect handles, and configure the model, prompt, file, tool, or utility settings each step needs.
2

Run and compare

Run one node while designing, or run the whole workflow. Use batches and choice nodes to test multiple prompts, models, files, or outputs side by side.
3

Expose inputs and results

Add User Input nodes for values people should fill in later, and User Result nodes for outputs the workflow should return.
4

Publish when it is reusable

Review the workflow, choose visibility and pricing, add examples, then publish a runner page. If you need automation, use the generated API reference.

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Core concepts

Canvas

The workspace where you add nodes, wire handles, run experiments, and shape a reusable workflow.

Inputs and results

User Inputs become runner form fields. User Results become returned output fields.

Lists & single values

How one value, many values, batches, selections, and LLM list outputs change how often downstream nodes run.

Output parts

How completed runs return text, image, video, file, and JSON parts.

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Optional API

Every published workflow has an API surface. Use it when the workflow should run outside the Blend AI UI.

Build your first workflow

The canvas, nodes, handles, data types, and runnable chains.

API Reference

Full endpoint reference with request/response schemas and a live playground.