AI Chat & Assistants

Stack AI

No-code platform for building custom AI chat workflows

7/10

Overview

No-code platform for building AI workflows and chat applications. Connect data sources, LLMs, and tools in a visual interface to create custom AI assistants, document Q&A, and automation workflows.

Ehsan's Growth Verdict

7/10

A fast path to custom AI apps — great for prototypes, watch the costs for production

Best for: Non-technical teams wanting to build custom AI applications quickly

Key Features

✓Visual AI workflow builder
✓Connect any LLM (OpenAI, Anthropic, Google)
✓Document ingestion and RAG
✓Custom AI chatbot deployment
✓API endpoint generation

Pros

+ Fastest way to build custom AI apps without code
+ Model-agnostic — use any LLM provider
+ Deploy as API or embeddable chat widget

Cons

− Pricing jumps steeply beyond free tier
− Complex workflows can be brittle
− Limited monitoring and debugging tools

Pricing

Plan	Details
Free	100 runs/mo, 1 user
Business	$599/mo — 10K runs
Developer	$199/mo — 2K runs
Enterprise	Custom

Best Use Cases

Custom knowledge base Q&A bots

Internal AI tools for operations teams

Document processing and extraction pipelines

Ehsan's Growth Take

Stack AI is the Zapier of AI app building: string together models, data sources, and actions without code. The free tier is useful for validation, but the jump to $199/mo means you need to confirm value before committing. Great for internal tools where polished UI doesn't matter.

Ehsan Jahandarpour

AI Growth Strategist & Fractional CMO

Forbes Top 20 Growth Hacker · TEDx Speaker · 716 Academic Citations · Ex-Microsoft · CMO at FirstWave (ASX:FCT) · Forbes Communications Council

Frequently Asked Questions

What is Stack AI?

No-code platform for building AI workflows and chat applications. Connect data sources, LLMs, and tools in a visual interface to create custom AI assistants, document Q&A, and automation workflows.

How much does Stack AI cost?

Stack AI uses a freemium pricing model. Free: 100 runs/mo, 1 user. Developer: $199/mo — 2K runs. Business: $599/mo — 10K runs. Enterprise: Custom.

Is Stack AI worth it in 2026?

Stack AI scores 7/10 in our expert review. A fast path to custom AI apps — great for prototypes, watch the costs for production. Non-technical teams wanting to build custom AI applications quickly.

What are the alternatives to Stack AI?

Alternatives depend on your specific needs. Compare Stack AI with other tools in the chat category using our comparison tool.

What are the pros and cons of Stack AI?

Key pros: Fastest way to build custom AI apps without code, Model-agnostic — use any LLM provider, Deploy as API or embeddable chat widget. Key cons: Pricing jumps steeply beyond free tier, Complex workflows can be brittle, Limited monitoring and debugging tools.