Zapier AI

Zapier AI offers a platform that integrates AI capabilities into workflows, including conversational AI through chatbots and agents. It provides API access for developers to connect AI tools to thousands of apps via Zapier MCP and offers enterprise-grade security and controls. While it doesn't directly offer fine-tuning of models, it allows users to leverage existing AI models like ChatGPT and Claude within their workflows, which can be seen as a form of customization. The platform also supports code generation through its 'Functions' feature.