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.
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
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
Platforms
Web
Web, Self-hosted
Integrations (vendor's figure)
1,400+ connectors
300+ enterprise integrations
Open source
No
Yes, self-hostable
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
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
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 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 by
Microsoft Corporation
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.
