Question: I'm looking for a toolkit to build AI multi-agent systems, can you suggest a solution that provides pre-built agents and customizable workflows?

If you want a full-featured toolkit for building AI multi-agent systems, AgentForge is a great option. It packages several AI tools, including Langchain, Langgraph and OpenAI, into a single service, with pre-built AI agents, customizable graphs and reusable UI components. With its visual interface, developers can easily customize pre-built agents for their needs, making it good for individuals and enterprises.

Another top contender is NexusGPT, a no-code tool for building and combining your own AI agents. It can handle autonomous task completion and has a marketplace with more than 1,500 prebuilt agents. NexusGPT's flexibility and wealth of customization options make it good for automating lots of tasks and optimizing processes in lots of different domains.

If you want something more flexible and self-hosted, n8n is an extensible AI-native workflow automation tool with advanced AI abilities and a visual workflow editor. With more than 400 integrations and a self-hosted setup, n8n is good for technical teams that want to build self-contained multi-step agents with strong security.

Last, crewAI is a tool for building and running multi-agent automation systems with a privacy and security focus. It lets you deploy agents locally and convert them to an API, so you can automate complex processes while tapping into services from popular AI providers like OpenAI and Google. That can be useful for rapid deployment of multi-agent systems.