Question: Can you suggest an AI assistant that offers a one-time payment model with lifetime access and future upgrades?

If you're looking for an AI assistant with a one-time payment model that grants you lifetime access and future updates, Aili is definitely worth considering. It combines the latest AI technology with your own data to help you work and live better, and you get unlimited use for a one-time payment. You can choose between a free tier and an Ultimate tier with unlimited access to large models. Aili works on multiple devices and platforms, so you can use it in a variety of contexts to boost your productivity.

Another great option is BoltAI, a native Mac app that builds AI directly into your workflow. It supports OpenAI and Azure AI Service models, and you can hire custom AI assistants and use a library of prompts. BoltAI offers perpetual licensing with a perpetual license that comes with one year of free updates, so it's a good deal for those who want an AI tool that's a permanent fixture.

If you want custom AI models that are tuned for your business, Leonardo Labs is an interesting option. It offers AI assistants built with custom code and knowledge bases that can be updated with ChatGPT and other APIs. Pricing includes a one-time full AI clone model payment, so it's a good option for businesses that want high-quality, customized AI help.