Automate Basics

Relevance AI vs StackAI

Pick up to 4 tools and see their free plans, entry prices, platforms and limits in one table. Every fact comes from each vendor's own pages, checked 23 September 2026.

Compared on
Relevance AI

Contact sales

StackAI

Free plan

What it isPlatform for building teams of specialised AI agents for sales and operationsEnterprise no-code platform for building, deploying and governing AI agents
Free planNo500 runs per month; 2 projects; 1 seat; community support on Discord
Cheapest paid planNot publishedRelevance AI pricingNot publishedStackAI pricing
What it coversNot statedNot stated
Free trialNone statedNone stated
PlatformsWeb, APIWeb, Self-hosted
Integrations (vendor's figure)1,000+ apps300+ enterprise integrations
Open sourceNoYes, self-hostable
Good for
  • Researching and enriching prospect lists before outreach
  • Preparing briefs before sales meetings and drafting follow-ups after calls
  • Drafting proposals from deal information
  • Automating document-heavy compliance or legal review steps
  • Handling IT service requests across ticketing and internal systems
  • Building a customer-support agent grounded in company documents
Watch out for
  • No published prices, free plan or self-serve plan; getting started means talking to sales
  • The only listed plan (Enterprise) uses custom action and vendor-credit allowances rather than fixed published limits
  • No self-serve paid plan; anything beyond the free tier is a custom Enterprise quote
  • Free plan: 500 runs a month, 2 projects and 1 seat
  • On-premises and VPC deployment, SSO and dedicated support are Enterprise-only
Made byOnSearch Pty Ltd (trading as Relevance AI)StackAI (owned by Asana, Inc.)

Entry prices are the cheapest paid plan, as each vendor publishes it; “What it covers” says what that price is per (a user, a channel, a brand, a number of contacts). The sources are listed on each tool's page.

Every tool in AI agent builders is on its category page, with the written head-to-heads on Compare.