Stack AI Pricing 2026: Free, Then Call Sales

TL;DR: Stack AI pricing now publishes just two options: a free plan (500 workflow runs, 2 projects, 1 seat) and custom Enterprise. The catch: the old self-serve Builder ($99) and Team ($499) tiers have been delisted from the main page and now appear only on third-party sites, leaving a missing middle between free and a sales call. Model tokens bill separately.

Last updated: August 2026 · By Sandeep Singh, DailyFix

Stack AI's public pricing jumps from a free plan straight to a custom Enterprise quote.

Stack AI is a well-known no-code platform for building enterprise AI agents, popular for wiring LLMs to company data and processes without code. As of August 2026, its pricing tells a story worth reading before you commit: the published options have narrowed to a free plan and a custom Enterprise quote. The tiers that used to sit between them are gone from the main page, and that gap changes who Stack AI is now a good fit for.

What are the Stack AI pricing plans in 2026?

Stack AI's official pricing page currently shows two options: a free plan and custom Enterprise. According to Stack AI's pricing and independent reviews (checked August 2026), the free plan includes 500 workflow runs per month, 2 projects and one seat, while Enterprise is a custom quote with security and deployment features. The earlier Builder and Team self-serve tiers are no longer prominently listed.

For a buyer, this means the transparent path is short: try it free, then talk to sales. If you are a solo builder or small team, that is a real consideration, because there is no published mid-tier to grow into. Plan around a free prototype and an enterprise conversation, and treat any $99 or $499 figures you see elsewhere as unconfirmed by the official page.

What does the Stack AI free plan include?

The Stack AI free plan includes 500 workflow runs per month, 2 projects, one seat and Discord support. It lets you build and test no-code AI agents end to end before paying anything, which makes it a genuine evaluation tier.

The caps that bite are the 500 runs and single seat. Five hundred runs is fine for building and demoing, but a live agent handling real traffic will pass it quickly, and one seat rules out team collaboration. Use the free plan to prove a concept and show a client a working agent, then decide whether your needs justify an enterprise conversation, because that is the next published step.

What happened to Stack AI's self-serve plans?

Stack AI appears to have shifted toward enterprise sales, moving its transparent Builder plan at $99 per month and Team plan at $499 per month off the main pricing page. They still appear on third-party pricing trackers, but the official flow now steers buyers from free to a custom Enterprise quote.

This is the missing middle, and it matters for planning. A year ago you could self-serve a mid-tier subscription; now the clear route skips it. If those tiers still exist by request, you may be able to ask sales about them, but do not assume the third-party numbers are current. The safe read is that Stack AI has repositioned around enterprise buyers, and pricing certainty below that level has narrowed.

What does Stack AI Enterprise cost?

Stack AI Enterprise is custom-priced and adds single sign-on, audit logs, SOC 2 Type II compliance, private model deployment and dedicated support, per Stack AI's pricing page (checked August 2026). There is no public number; it depends on your seats, usage and requirements.

Because it is quote-based, budget it like any enterprise software: expect a meaningful annual commitment, and negotiate on seats and usage. Crucially, LLM token costs are passed through at provider rates and bring-your-own-key is available, so the contract covers the platform, not the models. For a security-conscious organization that needs private deployment, that package can be worth it; for a lean team, the lack of a public mid-tier is the friction.

Stack AI vs Dust: which for AI agents?

Stack AI is a no-code enterprise agent builder that now leans toward custom Enterprise pricing and private deployment, while Dust offers transparent per-seat plans at $30 and $150 with strong connectors to company knowledge. For a self-serve, budget-clear start, Dust is easier; for enterprise controls, Stack AI fits.

The deciding factor is your stage. A solopreneur or small team that wants to start today with a known monthly price will find Dust's published tiers far simpler to adopt. An organization that needs SOC 2, SSO and private model deployment, and is ready for a sales process, will value what Stack AI's Enterprise package includes. Both pass model token costs through separately, so compare platform fees and usage together.

Stack AI plan comparison (2026)

Plan	Price	Included	Status
Free	$0	500 runs/mo, 2 projects, 1 seat	Listed
Builder	$99/mo	Self-serve mid-tier	Delisted (3rd-party only)
Team	$499/mo	Self-serve team tier	Delisted (3rd-party only)
Enterprise	Custom	SSO, audit, SOC 2, private deploy	Listed

LLM tokens are passed through at provider rates; bring-your-own-key is available. Prices and limits change often — verify on the official pricing page before deciding.

Frequently asked questions

Does Stack AI have a free plan?
Yes. Stack AI has a free plan with 500 workflow runs per month, 2 projects, one seat and Discord support. It lets you build and test no-code AI agents before committing. It is a real starter tier, but the 500-run cap and single seat make it suitable for prototyping and demos rather than production traffic.

How much does Stack AI cost per month?
As of August 2026, Stack AI's official page shows a free plan and custom Enterprise pricing. The self-serve Builder plan at $99 per month and Team plan at $499 per month that appeared earlier are no longer prominently listed and now surface mainly on third-party sites. So published pricing is effectively free, then a custom quote.

What happened to Stack AI's self-serve plans?
Stack AI appears to have shifted toward enterprise sales, moving the transparent Builder ($99) and Team ($499) self-serve tiers off its main pricing page. They still show up on third-party pricing trackers, but the official flow now steers most buyers from the free plan to a custom Enterprise quote, which is the missing middle to be aware of.

What does Stack AI Enterprise include?
Stack AI Enterprise is custom-priced and adds single sign-on, audit logs, SOC 2 Type II compliance, private model deployment and dedicated support. It is aimed at organizations with security and scale requirements. LLM token costs are passed through at provider rates, and bring-your-own-key is available, so model usage is billed on top of the contract.

Does Stack AI charge for model usage?
Yes. Stack AI passes LLM token costs through at provider rates, and it supports bring-your-own-key so you can use your own model accounts. That means the platform fee, whether free or Enterprise, is separate from what you spend on the underlying models. Budget model tokens as their own line, especially for high-traffic agents.

Is Stack AI better than Dust?
Stack AI is a no-code enterprise agent builder that leans toward security, private deployment and custom quotes, while Dust offers transparent per-seat pricing and strong connectors to company knowledge. For a self-serve, budget-clear start, Dust is easier; for enterprise controls and on-prem-style deployment, Stack AI fits. Both pass model costs through separately.

Who should not use Stack AI?
Skip Stack AI if you are a solo builder or small team that wants clear, self-serve monthly pricing, because the published path now jumps from free to a custom Enterprise quote. If you outgrow the free plan but are not ready for an enterprise contract, a tool with transparent mid-tier pricing will be easier to budget and scale.

Bottom line

Stack AI is a capable no-code platform for building enterprise AI agents, and its free plan is a solid way to prototype. But in 2026 its published pricing has narrowed to free, then a custom Enterprise quote, with the old $99 and $499 self-serve tiers gone from the main page. If you need SOC 2, SSO and private deployment and are ready for a sales process, Stack AI is worth the call. If you are a lean team wanting a clear monthly price to grow into, a tool with a transparent mid-tier will serve you better today.

Sources

Stack AI official pricing page (checked August 2026)
SiteGPT — Stack AI review and pricing, 2026

About the author — Sandeep Singh. Sandeep builds and tests AI tools and automations daily, and runs DailyFix to show solopreneurs which ones actually save time.

Sandeep Singh Founder & Editor, DailyFix

Sandeep Singh is the founder and editor of DailyFix. He served in the Border Security Force for five years before moving into software, where he now builds and tests AI automations for solopreneurs and small teams — mostly in n8n, Make, and Zapier, plus voice agents on Vapi and Synthflow. He runs DailyFix on the same principle he uses in his own work: no tool goes into a post unless he'd actually put it into a client build. Every review, prompt and workflow on the site is tested end-to-end on real projects before it's written up. Alongside DailyFix, Sandeep ships SwiftSite Studio. Recent focus: AI receptionists for contractors, and turning ranking-audit output into repeatable, one-person publishing systems. Reach him on GitHub.

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