Blend AI is a unified platform that can handle a variety of content, including images. It's got a multi-modal graph interface that lets you flow data back and forth among models, model chaining to steer results in a particular direction, and a pay-as-you-go pricing system. That means you can experiment with lots of AI models without a big upfront budget.
If you want more control, AI-Flow is an open-source platform that lets you drag and drop your own tools together. You can combine multiple models, including GPT-4o and Claude, to produce a wide range of AI outputs like images and videos. It's available as a cloud service that updates automatically, but you can also self-host it for maximum control.