Microsoft Copilot Studio vs Relevance AI vs Dust

Compared on	Microsoft Copilot Studio From $200/mo VisitRemove	Relevance AI Contact sales VisitRemove	Dust Free plan · from $24/seat/mo VisitRemove
What it is	Microsoft's low-code tool for building AI agents for Microsoft 365 and websites	Platform for building teams of specialised AI agents for sales and operations	Workspace for building and sharing AI agents connected to company data
Free plan	No	No	Free seat: 500 credits in total (a lifetime allowance, not monthly); when used up, free users are prompted to request an upgrade
Cheapest paid plan	$200/mo (Copilot Credit capacity pack)Microsoft Copilot Studio pricing	Not publishedRelevance AI pricing	$24/seat/mo billed annually (Pro seat (Business plan))Dust pricing
What it covers	25,000 Copilot Credits per pack per month; unused credits do not roll over; pay-as-you-go alternative at $0.01 per credit.	Not stated	8,000 credits per seat per month; prices exclude VAT.
Free trial	Trial licence lets individuals build and test agents but not publish them (length not stated); a new free Azure account includes a $200 credit that can be used for agents	None stated	None stated
Platforms	Web	Web, API	Web, API
Integrations (vendor's figure)	1,400+ connectors	1,000+ apps	70+ connectors
Open source	No	No	No
Good for	An internal help agent in Teams that answers staff questions from company documents A website agent that answers customer questions from return policies and product manuals An agent that processes new orders and emails confirmations automatically	Researching and enriching prospect lists before outreach Preparing briefs before sales meetings and drafting follow-ups after calls Drafting proposals from deal information	An internal assistant that answers questions from Notion, Google Drive and Slack content Agents that draft sales or support replies using company knowledge Scheduled agents that compile weekly reports
Watch out for	Publishing agents to channels outside Microsoft 365, such as websites, needs a standalone Copilot Studio plan Prepaid credits reset monthly without rollover; at 125% of prepaid capacity, custom agents are disabled until capacity is added Standalone plans require an Azure subscription to use agents	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	The Business plan is for teams of up to 100 people Business allows up to 3 connected data sources and 5 remote MCP servers; unlimited connectors need Enterprise Unused credits do not roll over; SCIM and audit logs are Enterprise-only
Made by	Microsoft Corporation	OnSearch Pty Ltd (trading as Relevance AI)	Dust

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.