Relevance AI vs StackAI
StackAI scores 8.4 to Relevance AI's 8.1 among the AI agent builders we rate, and is the better pick for 2 of the 4 kinds of buyer below.
StackAI wins, 8.4 to 8.1
StackAI has a standing free plan; Relevance AI does not offer one to new signups. StackAI can also be self-hosted, deploying on-premise or into your own VPC, and it moves agents through four separate stages from development to production; Relevance AI offers neither self-hosting nor separate test and live environments. StackAI also holds HIPAA compliance with a signable BAA, which Relevance AI does not claim. Relevance AI connects to a stated 2,000 apps against StackAI's 100.
Pick Relevance AI if you need far more app connectors to work with.
Pick StackAI if you need self-hosting, HIPAA compliance and a free plan.
Best for
Who each one suits, decided on the criteria that matter to that buyer and the checked facts where the two differ.
- Free plan: StackAI yes, Relevance AI no
- App connectors: 2000 apps against 100 apps
- But StackAI leads on separate test and live environments: StackAI yes, Relevance AI no
- What agents can learn from: Relevance AI Files, website, google_drive, notion, StackAI Website, files, google_drive, notion
- Self-hosted edition: StackAI yes, Relevance AI no
- HIPAA: StackAI yes, Relevance AI no
- But Relevance AI leads on ways to reach support: Email, live_chat, community, slack against Community, email
How they score
Both are scored the same way, against the other AI agent builders we rate, from facts on each vendor's own pages. StackAI leads on 3 of 7 criteria.
Where they differ
Every point where the two vendors' published facts disagree, with a link to where each fact was read. "Not published" means the vendor does not say either way.
Published by only one of them
Where they match (7)
Pricing, plan by plan
Every plan each vendor publishes, monthly and yearly where both are offered.
Relevance AI
Relevance AI does not publish a plan list we could read.
StackAI
Pros and cons
From each tool's full review, written from the same checked facts.
Relevance AI
- Supports building teams of specialist AI agents rather than one general-purpose bot, allowing each agent to be optimized for its specific task.
- Multi-model LLM router automatically benchmarks and routes tasks to the cheapest model that meets quality requirements, reducing costs.
- Over 1,000 app integrations available including Salesforce, HubSpot, Slack, and Google Workspace.
- Enterprise-grade features including role-based access control, SSO, and audit logs make it suitable for serious business deployments.
- No-code visual agent builder allows non-technical users to build, wire, and deploy agents without writing code.
- Dedicated deployment team helps customers go live, reducing time-to-value for mid-market and enterprise buyers.
- Architecturally distinct from most automation platforms with an agent-first workflow structure built for revenue-facing teams.
- Not designed for hobbyists or personal automation use cases — the platform is explicitly enterprise and mid-market focused.
- The ambitious multi-agent architecture may introduce complexity that smaller teams or simpler use cases don't need.
- Pricing and feature depth suggest a significant investment, likely inaccessible to startups or budget-constrained buyers.
- The platform's novelty means fewer established best practices or community resources compared to more mature tools.
- Agent-first structure may require a shift in how teams think about automation, creating an adoption learning curve.
StackAI
- No-code drag-and-drop visual flow builder makes it accessible for enterprise IT teams without deep coding expertise.
- Supports 100+ integrations and multiple LLMs including OpenAI and Anthropic Claude, avoiding vendor lock-in on AI models.
- Enterprise-grade compliance stack including SOC 2 Type II, HIPAA, ISO 27001, and GDPR certifications.
- On-premise and VPC deployment options give regulated industries full control over data residency.
- Human-in-the-loop controls are natively built into workflow design, not a superficial add-on.
- Purpose-built for regulated industries like healthcare, finance, and legal where compliance posture is critical.
- Each workflow node can be an LLM call, data loader, code block, or human approval step, offering genuine flexibility.
- Almost no independent third-party reviews on G2, Capterra, or Trustpilot, making it difficult to verify real user experiences.
- Asana's pending acquisition creates significant uncertainty around pricing, roadmap, and the product's future as a standalone platform.
- Limited public review trail means buyers must rely heavily on vendor documentation and sparse community threads.
- The product's strong enterprise and compliance focus likely makes it overkill or cost-prohibitive for smaller teams.
- No clarity yet on how the acquisition will affect existing customer contracts or feature development priorities.
- Community presence is limited to Discord and Reddit threads rather than robust user communities on established review platforms.
Relevance AI vs StackAI: common questions
Which is better, Relevance AI or StackAI?
StackAI scores 8.4 and Relevance AI 8.1 out of 10 among the AI agent builders we rate. StackAI is ahead on pricing, reliability and control and hosting and security. Relevance AI is ahead on apps it connects to and support.
Is Relevance AI or StackAI cheaper?
Relevance AI's cheapest paid plan is $29/mo — Pro and StackAI's is $0/mo — Free. Compare what each plan includes below before going on price alone.
Do Relevance AI and StackAI have a free plan?
StackAI does and Relevance AI does not.
What can StackAI do that Relevance AI cannot?
On the facts both vendors publish: free plan, separate test and live environments, self-hosted edition and hIPAA.
