Question: Can you suggest a tool that allows developers to build their own apps using AI models, with flexible pricing options?

For developers who want to create their own apps using AI models with a flexible pricing model, MindStudio is a good option. It's a no-code interface that lets you build your own custom AI tools and assistants without any programming. MindStudio has tiered pricing, including a free plan and options from $49 per member per month to custom enterprise pricing, but it also offers flexible pricing for individual models starting at $0.33 per 1 million tokens.

Another good option is Gooey, which offers a centralized interface to a range of private and open-source AI models like GPT4o and LLaMA3. It's got a low-code interface and hot-swappable AI models, so you can quickly build and deploy AI apps. Gooey offers flexible pricing tiers including a free starter plan and commercial usage plans, with credits costing between $0.02 and $0.01, depending on the plan.

If you want to use generative AI in multiple domains, Stability AI offers a range of powerful models for images, videos, audio and language. With flexible membership options including a free non-commercial plan and a professional plan at $20/month, Stability AI also offers custom enterprise pricing. That means it's available to developers, researchers and others who want to try out generative AI in their own projects.

Finally, Pickaxe lets you build, share and manage your own AI apps by training your own GPTs. It's geared for creators and professionals who want to make a business out of their expertise, with subscription options and the ability to embed AI tools into websites. Pickaxe's flexible pricing and usage limits make it a good option for those who want to cash in on their expertise.