MiniMax H3 Image and Highspeed now available on AI Gateway

MiniMax H3 Image and MiniMax H3 Image Highspeed are now available on Vercel's AI Gateway, so you can generate and edit images with one API key and no separate MiniMax account.

Start with a text prompt, like a product visual or an illustration, then pass the result back in with an instruction to change colors, subjects, or composition. In the AI SDK, that's generateImage with minimax/minimax-h3-image as the model. The example prompt asks for a blue ceramic vase with wildflowers at 2048x2048. The follow-up sends the image back with "Change the vase to terracotta and keep the flowers and setting."

Both models take custom dimensions and aspect ratios, including 2K and 4K outputs. Highspeed (minimax/minimax-h3-image-highspeed) is the faster variant with the same generation and editing options. Both also work through the OpenAI-compatible /v1/images/generations and /v1/images/edits routes.

The model directory lists input pricing at $2.30/M for both, and output at $3.80/M for H3 Image and $7.60/M for Highspeed. Vercel says AI Gateway passes through provider pricing with no markup and no platform fee on inference.