Stack AI Review, Pricing & Features

Stack AI lets enterprises build and deploy no-code AI agents and workflows. See pricing, features, founders, and use cases.

Category
AI
Pricing
freemium, from Free (Enterprise plan custom-priced)
Verified
Not yet
Last updated
July 19, 2026
Founded
2022
Headquarters
San Francisco, California, United States
Free PlanNo-CodeAIFreemium

What Is Stack AI

Stack AI is a no-code platform that lets organizations build and deploy AI agents and automated workflows by connecting large language models to internal data sources and business systems, without writing custom code. It was founded in 2022 by Bernard Aceituno and Toni Rosinol, both MIT-trained engineers, and is headquartered in San Francisco.

The company went through Y Combinator and has raised approximately 19 million US dollars in funding across a 2023 seed round and a 2025 Series A. Since 2024, Stack AI has repositioned itself specifically toward enterprise customers, describing itself as an AI Agents for the Enterprise platform aimed at IT and operations teams inside large organizations.

Key Features

Stack AI's core product is a visual workflow builder that lets users chain together LLM calls, document loaders, APIs, and business logic into working AI agents without writing code. It supports connecting to internal knowledge bases and documents so agents can answer questions or automate processes using an organization's own data, and it offers enterprise-focused deployment options including on-premises and VPC hosting, single sign-on, and compliance support for SOC 2, HIPAA, and GDPR requirements.

Pricing

Stack AI uses a freemium pricing model. The Free plan includes 500 workflow runs per month, two projects, and a single user seat, with support provided through a community Discord server. The Enterprise plan is custom-priced and adds unlimited projects, custom run allocations, adjustable team seats, dedicated infrastructure, dedicated solution engineers, on-premises and VPC deployment options, single sign-on, and SOC 2, HIPAA, and GDPR compliance.

Key Features

Pros & Cons

Pros

  • No-code interface makes building AI agents accessible to non-developers
  • Strong enterprise deployment options, including on-premises and VPC hosting
  • Backed by credible investors and has passed through Y Combinator
  • Compliance support for SOC 2, HIPAA, and GDPR suits regulated industries
  • Free plan available for evaluating the platform before committing

Cons

  • 2024-2025 pivot toward enterprise-only customers reduced accessibility for small businesses and individuals
  • Enterprise plan pricing is not publicly disclosed and requires a sales conversation
  • Free plan's 500 monthly runs and single seat are limiting for real production use
  • Newer company founded in 2022 with a shorter track record than some competitors
  • No-code tools can hit complexity ceilings for highly custom or unusual workflows

Pricing

Frequently Asked Questions

Is Stack AI free?

Stack AI offers a Free plan with 500 workflow runs per month, two projects, and one seat; larger usage requires the custom-priced Enterprise plan.

Who founded Stack AI?

Stack AI was founded in 2022 by Bernard Aceituno and Toni Rosinol.

Where is Stack AI based?

Stack AI is headquartered in San Francisco, California.

Who is Stack AI for?

Stack AI is aimed primarily at enterprise IT and operations teams that need to build AI agents and automate workflows without custom software development.

Does Stack AI support on-premises deployment?

Yes, the Enterprise plan includes on-premises and VPC deployment options.

How much funding has Stack AI raised?

Stack AI has raised approximately 19 million US dollars, including a 2023 seed round and a 2025 Series A.

Is Stack AI a no-code platform?

Yes, Stack AI provides a visual, drag-and-drop workflow builder for creating AI agents without writing code.

Does Stack AI support compliance requirements like HIPAA?

Yes, the Enterprise plan includes SOC 2, HIPAA, and GDPR compliance support.

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