Best AI Agent Platforms in 2026
Building an AI agent involves decisions about where it runs, how it draws on knowledge and when a person takes over. Compare deployment model, knowledge grounding, human handoff and multi-agent support to see which platforms fit your development needs. Visual agent builders and voice agent support add further distinctions, while free plans and paid-from pricing help you consider cost. Camunda, Langflow and Workato Agentic lead the ordering, followed by Flowise and Relevance AI. StackAI, Google Agent Development Kit and Dify also appear among the first entries. Weigh these capabilities against how you want to build, deploy and oversee agents.
66 ai agent platforms ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
| # | App | Score | From | Free plan | Paid from | Deployment model | Visual agent builder | Multi-agent support | Knowledge grounding | |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Camunda | 8.1 | Free | Yes | — | — | — | — | — | View |
| 2 |  Langflow | 8.1 | Free | Yes | — | both | Yes | Yes | Yes | View |
| 3 |  Workato Agentic | 8.0 | $75/mo | Yes | 75 /mo | cloud | Yes | Yes | Yes | View |
| 4 |  Flowise | 7.9 | $35/mo | Yes | 35 /mo | both | Yes | Yes | Yes | View |
| 5 | Relevance AI | 7.8 | $19/mo | Yes | 19 /mo | — | — | — | — | View |
| 6 | Google Agent Development Kit | 7.7 | Free | Yes | — | both | Yes | Yes | Yes | View |
| 7 | StackAI | 7.7 | Free | Yes | — | both | Yes | Yes | Yes | View |
| 8 | Dify | 7.7 | $49.17/mo | Yes | 59 /mo | both | Yes | — | Yes | View |
| 9 |  Vellum | 7.6 | $30/mo | Yes | 30 /mo | — | — | — | — | View |
| 10 | Dust | 7.5 | €2/mo | Yes | — | — | — | — | — | View |
| 11 | Microsoft Copilot | 7.5 | $8.33/mo | Yes | 9.99 /mo | — | — | — | — | View |
| 12 |  CrewAI AMP | 7.4 | Free | Yes | — | both | Yes | Yes | Yes | View |
| 13 | Botpress | 7.4 | $150/mo | Yes | 150 /mo | — | Yes | — | Yes | View |
| 14 | LangChain | 7.3 | Free | Yes | — | — | — | — | — | View |
| 15 | LlamaIndex | 7.2 | Free | Yes | 50 /mo | both | — | Yes | Yes | View |
| 16 | MindStudio | 7.2 | $20/mo | Yes | 20 /mo | — | — | — | — | View |
| 17 | n8n | 7.2 | €20/mo | Yes | — | — | — | — | — | View |
| 18 | SmythOS | 7.0 | Free | Yes | — | — | — | — | — | View |
| 19 |  Workato Agent Studio | 7.0 | $75/mo | Yes | 75 /mo | — | — | — | — | View |
| 20 | LangSmith | 6.8 | Free | Yes | — | — | — | — | — | View |
| 21 |  Trinity | 6.8 | Free | Yes | — | both | — | Yes | Yes | View |
| 22 |  Cognigy | 6.7 | — | — | — | — | Yes | — | Yes | View |
| 23 |  Sinaptic DROID+ | 6.7 | Free | Yes | — | both | Yes | Yes | Yes | View |
| 24 |  Wordware | 6.7 | $29/mo | Yes | — | — | — | — | — | View |
| 25 | Kore.ai | 6.6 | — | — | — | — | Yes | — | Yes | View |
Is your app on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which ai agent platform is ranked first on Freedom251?
Camunda is ranked #1 of 66 with a score of 8.1. Langflow is second and Workato Agentic third.
How many of these have a free plan?
23 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, Dust has the lowest first paid tier we found: €2/mo.
How is this list ranked?
Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation. Paid placements never change a rank.