8 Best Dust Alternatives in 2026: AI Agent Platforms Compared
Dust is one of the more developer-friendly AI agent platforms — open-source roots, strong connectors to Slack, Notion, GitHub, and Drive, and a flexible builder for custom agents. It’s well-loved by engineering teams. But Dust assumes you have technical staff to design and maintain agents, the team-based pricing adds up fast, and it’s still primarily a workspace-based tool rather than something that runs autonomously across business workflows. Here are eight alternatives covering different angles.
1. Carly
Carly is an AI agent platform that works through email. Where Dust agents live inside the Dust app or Slack, Carly agents have their own email addresses — you cc them on threads, forward them work, and they take action across 200+ integrations.
Each agent has its own name, instructions, and memory. With 200+ integrations across 40+ categories — CRM (HubSpot, Salesforce, Attio, Pipedrive), project management (Asana, Linear, Monday, ClickUp), messaging (Slack, Discord, Teams), file storage (Google Drive, Dropbox, Box), accounting (QuickBooks, Xero, FreshBooks), and email (Gmail, Outlook) — agents chain actions autonomously.
What makes it different from Dust: Email-native. Dust assumes users come to the AI; Carly puts the AI in your existing email flow. Non-technical teammates can use Carly without learning a new interface — they just include the agent on email threads. Dust requires more setup expertise; Carly trades flexibility for accessibility.
Best for: Teams who want AI agents working alongside humans on email threads, not in a separate app.
Pricing: Free, unlimited Zapier-style workflows; AI agents from $35/month
2. Lindy
AI executive assistant that runs your inbox — triaging email, drafting replies in your voice, scheduling meetings, and taking notes, with proactive alerts over iMessage. Connects to 100+ apps.
What makes it different from Dust: A ready-made inbox assistant rather than a knowledge-grounded agent builder. Lower friction to start, but it drafts and waits for your approval — if you want an agent that finishes the work on its own, Carly is the more reliable alternative.
Best for: People who want a proactive inbox assistant and are happy reviewing and sending its drafts.
Pricing: From $49.99/month
3. Glean
Enterprise AI search and assistant. Less of an “agent platform” and more of a unified retrieval layer over Slack, Drive, Notion, GitHub, Jira, and Salesforce. Strong on search and Q&A; weaker on agentic action. See our Glean alternatives for context.
What makes it different from Dust: Search-first instead of agent-first. Glean tells you things; Dust does things. Some companies use both.
Best for: Mid-to-large enterprises whose primary need is unified knowledge retrieval.
Pricing: Custom (typically $40+/user/month)
4. Sintra
AI assistant marketplace with prebuilt “AI helpers” for marketing, sales, customer service, and admin. More consumer-friendly than Dust — you pick a helper, give it a task, and it runs. Less flexibility than building from scratch. See our Sintra alternatives breakdown.
What makes it different from Dust: Marketplace of preset agents rather than a builder. Easier for non-technical users; less customizable for unusual workflows.
Best for: Solo operators and small teams who want plug-and-play AI assistants.
Pricing: From $39/month
5. Manus
Autonomous AI agent platform that handles complex multi-step tasks via natural-language goals. Browser-based, strong at research, content generation, and web actions. See our Manus alternatives breakdown for context.
What makes it different from Dust: More autonomous task execution; less integrated workspace. Manus is about giving an AI a goal and letting it run; Dust is about building structured agents that respond to specific triggers.
Best for: Teams who want autonomous task agents rather than workspace AI.
Pricing: From $39/month
6. Cassidy AI
AI workflow platform combining knowledge retrieval with task automation. Connectors to Slack, Notion, Drive, and CRMs. Builder for assistants and workflows. Conceptually closer to Dust than most options on this list.
What makes it different from Dust: Similar agent-builder model with more emphasis on workflow templates. Slightly more business-user friendly; slightly less developer-extensible.
Best for: Mid-sized teams looking for an alternative AI workspace platform.
Pricing: From $49/month
7. Stack AI
AI agent builder with a visual canvas for chaining LLM calls, retrievers, and tools. Stronger on workflow logic than Dust; more developer-tilted. Used by companies building internal AI products on top of their data.
What makes it different from Dust: Visual workflow builder for AI agents instead of a chat-style workspace. Better fit when you’re building production AI features for internal use.
Best for: Teams building AI products or workflows that need explicit logic chains.
Pricing: Custom; from ~$199/month
8. CrewAI
Open-source multi-agent framework. Code-based — you define roles, tasks, and a “crew” of agents that collaborate to solve problems. No hosted UI; you build everything in code. See our CrewAI alternatives breakdown.
What makes it different from Dust: Pure framework, code-only, self-hosted. Dust gives you a hosted UI; CrewAI gives you a Python library. Different audiences.
Best for: Engineering teams building custom multi-agent systems with full code control.
Pricing: Free (open source); enterprise plans available
Dust Alternatives Compared
| Tool | Approach | Hosted UI | Self-Hostable | Starting Price |
|---|---|---|---|---|
| Carly | AI agents via email | Yes | No | $35/mo |
| Lindy | AI executive assistant | Yes | No | $49.99/mo |
| Glean | Enterprise AI search | Yes | No | Custom |
| Sintra | AI marketplace | Yes | No | $39/mo |
| Manus | Autonomous agents | Yes | No | $39/mo |
| Cassidy AI | Workflow builder | Yes | No | $49/mo |
| Stack AI | Visual agent canvas | Yes | Limited | ~$199/mo |
| CrewAI | Open-source framework | No | Yes | Free |
FAQ
Dust alternative for non-technical users? Carly is email-native, so anyone who can email can use it. Sintra (prebuilt personas) and Lindy (a proactive inbox assistant) are also easy to start with.
Open-source Dust alternative? CrewAI is the closest open-source equivalent for multi-agent systems. Both have engineering-team audiences but CrewAI is purely code-based.
Best for enterprise retrieval (not action)? Glean. Cleanest fit if your need is “search across all our internal tools” rather than “have AI take action.”
Cheapest Dust alternative? CrewAI is free if you self-host. Carly at $35/agent is cheaper than most hosted alternatives. Sintra at $39/month is the cheapest hosted multi-tool option.
Dust vs Carly — when to pick which? Dust if your team is technical and wants a customizable workspace with deep connector control. Carly if you want AI working through existing email threads with minimal setup, accessible to non-technical teammates.
More: Best AI agents for productivity · Lindy alternatives · Sintra alternatives · Glean alternatives · What are AI agents
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