Alternatives · AI Agents
Cassidy AI alternatives
As of Nov 13, 2026, the highest-graded Cassidy AI alternative is Vellum (2.6 GPA). It's also the best free one.
Cassidy AI compared with 5 alternatives: Dust, Relevance AI, Lindy, Gumloop and Vellum.
Cassidy AI's current pricing could not be confirmed from its own site. 1 of the 5 alternatives is free or has a free plan. 3 more offer a free trial.
Listings checked up to Nov 13, 2026 · Where the facts come from
Black Friday: is there a Cassidy AI sale?
At a glance
| Tool | Price | Free plan | Runs on |
|---|---|---|---|
| Cassidy AIThis tool | Paid | No | Web, Browser extension |
| Dust | Free trial · from $24/mo | Trial only | Web, Browser extension |
| Relevance AI | From $19/mo | No | Web, iOS, Android, Browser extension |
| Lindy | Free trial · from $29.99/mo | Trial only | Web, Browser extension |
| Gumloop | Free trial · from $37/mo | Trial only | Web |
| Vellum | Free plan · from $30/mo | Yes | Web, macOS, Windows, iOS, Android, Browser extension |
How each one differs from Cassidy AI
Dust
Platform for building AI agents on your company's knowledge
- Dust starts at $24 per seat / month, billed yearly (Pro).
- Dust also covers AI search.
- Dust does not cover meeting notes and no-code, which Cassidy AI does.
Suits: Companies that want agents grounded in internal knowledge
Relevance AI
Low-code platform for building AI agents and multi-agent teams
- Relevance AI starts at $19 per month, billed annually (Pro).
- Relevance AI also lists iOS and Android apps.
- Relevance AI also covers chat assistant.
- Relevance AI does not cover meeting notes, which Cassidy AI does.
Suits: Sales and support teams automating research, outreach and CRM updates
Lindy
AI teammate for Slack that works across your team's tools
- Lindy starts at $29.99 per user / month, for 3,000 credits.
- Lindy also covers chat assistant and inbox filtering.
- Lindy does not cover no-code, which Cassidy AI does.
Suits: Teams that work in Slack and want one shared AI teammate
Gumloop
AI agent builder for teams, with unlimited seats on shared credits
- Gumloop starts at $37 per month (Pro, including 20,000 credits).
- Gumloop lists no browser extension, which Cassidy AI has.
- Gumloop does not cover meeting notes, which Cassidy AI does.
Suits: Teams that want non-engineers to build their own agents
Vellum
Personal AI assistant with long-term memory that acts across apps
- Vellum starts at $30 per month (Mighty).
- Vellum has a free plan, which Cassidy AI lacks.
- Vellum also lists macOS, Windows, iOS and Android apps.
- Vellum is open source and self-hostable, according to its own site.
- Vellum also covers chat assistant.
Suits: People who want one assistant that remembers them across devices and chat apps
Limits worth knowing in Cassidy AI
- No price is published. Both the Starter and Business plans are reached through Book a demo.
- Starter is listed with 3 seats, 1 workspace, 5 agents, 5 workflows, 10,000 AI credits a month and 30,000 pages of storage.
- SSO, audit logs and data retention controls are listed under Business only.
- Only the browser extension and add-ins run outside the web app; there are no desktop or mobile apps listed.
Common questions
What are the alternatives to Cassidy AI?
The alternatives to Cassidy AI in this directory are Dust, Relevance AI, Lindy, Gumloop and Vellum. Each one has a side-by-side comparison with Cassidy AI.
Is there a free alternative to Cassidy AI?
Yes. Vellum has a free plan alongside paid ones.
Which Cassidy AI alternatives work on Windows?
The Cassidy AI listing does not include a Windows app. Vellum lists one.
Which Cassidy AI alternatives work on macOS?
The Cassidy AI listing does not include a macOS app. Vellum lists one.
Is there an open-source alternative to Cassidy AI?
Vellum is described as open source on its own site.
When were these prices checked?
Each listing shows its own date. On this page they run from Oct 5, 2026 to Nov 13, 2026. Vendors change prices without notice, so confirm on their site before you buy.