Window is a flexible option that lets you use your own AI models directly on the web without needing API keys or a backend. It supports models from several sources, including OpenAI, Google, Anthropic and Cohere. You can generate text in real-time with prompts, and train your own AI models based on your own interactions.
If you prefer a more polished experience, EnhanceAI is an autocomplete solution powered by AI that you can build into a website to help people get more out of the web with fast form filling and text completion. It uses GPT models and lets you customize prompts, and it's easy to incorporate with a two-line snippet of code. It has flexible pricing and plans to add other features like semantic search and custom chatbots.
Another option is DeftGPT, a Chrome extension that offers AI tools for generating text in real-time, summarizing documents and translating languages. It supports multiple languages and offers a conversational interface so you can ask questions and get answers. It also offers tools for generating AI art and getting insights into documents, and it's a good example of a broad suite of tools to get people to spend more time on a website.