Claude
A calm, careful AI assistant that shines on long documents, nuanced writing and code.
Free · Pro $20/mo
A builder's toolkit for AI agents, with a visual studio up front and code when you want it.
Botpress
A builder's toolkit for AI agents, with a visual studio up front and code when you want it.
Botpress strikes a nice balance for people who like to tinker. Its studio lets you build agents visually, connect knowledge sources and define actions, but there is always room to write custom code when a flow needs something the drag-and-drop tools do not cover.
We appreciated how many channels you can deploy to, from website chat to popular messaging apps, and the pay-as-you-go model means you start free and pay mostly for the AI usage your agent actually consumes.
The flexibility comes at a price in time: there are more concepts to learn than in plug-and-play chatbot tools, and estimating costs takes a little attention as usage grows. For developers and agencies building agents for clients, it hits a sweet spot.
Best for: Developers and agencies building custom AI agents for many channels
Building a WhatsApp or web assistant for a client
Creating agents that trigger actions in other tools
Prototyping a support bot before scaling it
Prices last checked Aug 24, 2026. Spotted an error? Let us know.
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A builder's toolkit for AI agents, with a visual studio up front and code when you want it. Best for developers and agencies building custom AI agents for many channels.
Free · pay as you go
Have a look at Chatbase, Voiceflow and Intercom Fin.
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