Stack AI
A no-code builder for enterprise AI agents and back-office workflows over private knowledge, bought by Asana in May 2026; it offers a free plan and custom Enterprise pricing after dropping its $99 and $499 tiers.
- Free plan
- Agentic tool
- Vendor-sourced
- Verified 13 Nov 2026Sources are dated on this profile
- 8 sourcesLinked, typed and dated
- Vendor and official documentationHow this profile was compiled
- Not an endorsementStack18 has not tested this product
What is Stack AI?
Stack AI is a no-code platform for building AI agents and workflows that run inside enterprise back-office processes, combining a drag-and-drop builder, knowledge bases over private documents, interfaces and analytics, with private model deployment and compliance features. Asana acquired the company in May 2026.
- Best forRegulated enterprises automating back-office work
- PricingFree plan; Enterprise custom (Builder $99 and Team $499 plans withdrawn in 2026). Free plan available.
- Main limitationJumps from Free straight to custom Enterprise.
- AlternativesRelevance AI · Dify · Microsoft Copilot Studio · compare all
Stack AI overview: who it is for and what it does.
Stack AI was founded in 2022 by MIT alumni Bernardo Aceituno and Antoni Rosinol and backed by Y Combinator (W23) and Sequoia. Teams build agents on a drag-and-drop canvas, connect knowledge bases such as SharePoint and uploaded documents, add templates and reusable Skills, and publish agents as chat interfaces, forms or APIs. It emphasises enterprise deployment: private models on AWS Bedrock or Azure, EU data residency, SSO, audit logs and SOC 2 Type II.
In May 2026 Asana bought Stack AI for a reported $75 million. Pricing moved to enterprise sales during 2026: the pricing page now lists only Free (500 runs a month, 2 projects, 1 seat) and custom Enterprise, after the self-serve Builder ($99 a month) and Team ($499) plans were withdrawn. LLM tokens are passed through at provider rates or via your own keys.
Main problem it solves
Lets IT and operations teams build governed agents over private data without engineers.
Typical customer segment
Regulated enterprises and mid-market back-office teams.
Target users
- Product and CX teams
- Developers and automation builders
- Agencies
Primary use cases
- Document extraction and processing
- Internal knowledge assistants
- Research agents
- Multi-department back-office automation
What makes it distinct
- No-code builder aimed at regulated enterprises.
- Private model deployment and EU residency.
- Now part of Asana.
Stack AI features explained.
Build
- Drag-and-drop builder
- Visual agent workflows.
- Templates and Skills
- Reusable instruction packs and templates.
Data
- Knowledge bases
- RAG over SharePoint and documents.
Enterprise
- Private deployment
- Models on Bedrock or Azure; VPC options.
- Governance
- SSO, audit logs and SOC 2 Type II.
Stack AI pricing and plans.
Prices from a vendor-published source. Checked 13 Nov 2026 against Automation Atlas · Automation Atlas · Macha.
Pricing model
Free plan and custom Enterprise; LLM tokens at provider rates or BYOK.
Free plan
Yes. The Free plan includes 500 runs a month, 2 projects and 1 seat.
Free trial
Free plan.
Stack AI plans and prices (USD)
-
Free
Free
n/a
500 runs a month, 2 projects, 1 seat.
-
Enterprise
Custom
Annual
SSO, audit log, SOC 2 Type II, private models, support.
Plans from Stack AI's pricing page as checked by independent trackers in July and August 2026.
Prices change. Confirm current plans and terms on the vendor's site before you decide.
Visit official website (external) ↗See alternativesStack AI integrations, API and platforms.
Important integrations
- SharePoint
- Google Drive
- Salesforce
- Slack
- AWS Bedrock
- Azure OpenAI
- All major LLM providers
- Asana
Supported platforms
- Web (cloud)
- VPC / on-premises (Enterprise)
- API
API
Not reviewed for this profile.
Data import and export
Knowledge is imported from help centres, documents and connected systems; export options were not reviewed.
Integration availability can depend on plan. Confirm with the vendor before you rely on a specific connector.
How Stack AI works as an AI product.
Attributes are listed only where documented. We do not infer autonomy levels, certifications or model capabilities.
Classification: Agentic tool. A human-directed tool that can plan, edit and run actions, with the user reviewing or approving changes. Developer: Stack AI, part of Asana.
| Attribute | Details |
|---|---|
| Supported models | All major LLM providers; private deployment on Bedrock or Azure. [1] |
| Tools and integrations | Knowledge bases, integrations and APIs. [7] |
| Ability to execute actions | Agents run back-office workflow steps. [3] |
| Execution environment | Not documented in the sources reviewed. |
| Human-in-the-loop controls | Not documented in the sources reviewed. |
| Permissions and access | Not documented in the sources reviewed. |
| Memory and context | Not documented in the sources reviewed. |
| Deployment options | Cloud, VPC or on-premises on Enterprise. [5] |
| Data handling and privacy | Not documented in the sources reviewed. |
| Security and compliance | SOC 2 Type II, SSO, audit logs and EU data residency. [2] |
| Pricing and usage limits | Not documented in the sources reviewed. |
| Languages and platforms | Not documented in the sources reviewed. |
| Limitations and known constraints | No published mid-tier between Free and Enterprise. [4] |
Primary tasks
- Designing conversational agents
- Connecting knowledge and tools
- Deploying to channels
Best-fit workflows
- Website and messaging assistants
- Internal helpdesk bots
- Agent prototypes
Stack AI pros and cons.
Strengths, limitations and best fit. Each point cites a source; editorial summaries are not customer reviews.
Strengths
Limitations
Best for
- Regulated enterprises automating back-office work
- IT-led multi-department rollouts
- Asana customers
May be less suited to
- Solo builders and small teams
- Developers wanting open source
Top Stack AI alternatives and competitors.
Stack AI alternatives
Teams look for Stack AI alternatives after the Asana acquisition, when they need self-serve paid plans, or…
Explore →Related productRelevance AI
A platform for building an "AI workforce" of agents for sales, support and operations, billed in Actions…
Explore →Related productDify
One of the most-starred open-source AI app builders: a visual workflow studio for agents, RAG pipelines and…
Explore →Related productMicrosoft Copilot Studio
Microsoft's low-code platform for building AI agents for Teams, Microsoft 365 Copilot, websites and…
Explore →Stack AI compared with similar AI agent and chatbot builders.
Summaries come from each profile. This is a side-by-side aid, not a ranking.
| Product | Channels | AI models | Free tier | Pricing model | Human oversight |
|---|---|---|---|---|---|
| Stack AI | Chat interfaces, forms and API | All major providers; private deployment | Yes (500 runs a month) | Free; Enterprise custom | Approval steps configurable |
| NiCE Cognigy | Phone, web chat and messaging | Not disclosed | No | Custom enterprise | Escalation to human agents |
| Bland AI | Phone and SMS; API | Bundled models | Yes (Start tier) | Plan fee plus $0.11 to $0.14 a minute | Call transfer to humans |
| Microsoft Copilot Studio | Teams, Microsoft 365 Copilot, websites and apps | Microsoft-hosted models (Azure) | No (free maker licence, trial) | $0.01 per credit or $200 per 25,000 | Approvals and handoff configurable |
| Dify Compare | Web apps, embeds, API and MCP | 100+ providers, including local | Yes (self-host; 200 Cloud credits) | Free self-host; Cloud from $59 a month | Human review steps in workflows |
| ElevenLabs Agents | Web, apps, phone, chat and email | Choice of major LLMs | Yes (small allowance) | About $0.08 a minute; plans | Call transfer; tools |
Stack AI vs competitors: head-to-head comparisons.
Stack AI discussions and buying questions.
Stack AI questions and answers
What is Stack AI used for?
Stack AI is a no-code platform for building AI agents and workflows that run inside enterprise back-office processes, combining a drag-and-drop builder, knowledge bases over private documents, interfaces and analytics, with private model deployment and compliance features. Asana acquired the company in May 2026.
Is Stack AI free?
Yes. The Free plan includes 500 runs a month, 2 projects and 1 seat.
How much does Stack AI cost?
Free plan; Enterprise custom (Builder $99 and Team $499 plans withdrawn in 2026).
Which models does Stack AI support?
All major LLM providers; private deployment on Bedrock or Azure.
What are the limitations of Stack AI?
Jumps from Free straight to custom Enterprise. Ownership changed to Asana in May 2026. Small teams lose self-serve paid options.
Which platforms does Stack AI run on?
Stack AI is documented as available on: Web (cloud), VPC / on-premises (Enterprise), API.
Is Stack AI an AI agent or an AI assistant?
We classify Stack AI as: Agentic tool. A human-directed tool that can plan, edit and run actions, with the user reviewing or approving changes. The classification is based on vendor documentation and is not an endorsement.
What are the main alternatives to Stack AI?
The main alternatives to Stack AI covered on Stack18 are Relevance AI, Dify, Microsoft Copilot Studio and Dust. See the Stack AI alternatives guide for a side-by-side table.
When was the Stack AI profile last verified?
Sources for this profile were last reviewed on 13 Nov 2026. 8 sources are listed under Sources, and prices and plans can change, so confirm with the vendor.
Where this information comes from.
- How much does Stack AI cost in 2026? Automation Atlas Third-party Accessed 13 Nov 2026
- Stack AI Automation Atlas Third-party Accessed 13 Nov 2026
- Stack AI: the complete guide (2026) Macha Third-party Accessed 13 Nov 2026
- Stack AI pricing 2026: free, then call sales DailyAIFixs Third-party Accessed 13 Nov 2026
- Stack AI plans and pricing CostBench Third-party Accessed 13 Nov 2026
- Stack AI pricing Toolradar Third-party Accessed 13 Nov 2026
- StackAI Software Finder Third-party Accessed 13 Nov 2026
- StackAI ToolDirectory.ai Third-party Accessed 13 Nov 2026
Further official pages: Stack AI pricing (external)
Plans, features and status were checked against Stack AI's published pages and the third-party sources listed. Agent behaviour was not tested, resolution rates quoted by vendors were not verified, and security certifications were not independently checked.
Stack18 has not tested this product or received anything from the vendor for this profile. Editorial summaries of vendor information are not endorsements. Confirm details with the vendor before buying.
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