A Visual Guide to Multimodal Generation: How LLMs Produce Images, Audio, and Video
MaartenGr · x · 2026-10-30
Maarten Grootendorst published a free bonus chapter (cut from his new book on AI agents) explaining how multimodal generation works, with 50+ custom visuals.
Key points:
- Most multimodal LLMs today only encode images/audio/video as input and generate text; true multimodal output requires very different architectures.
- The guide covers how modern models generate images (Diffusion Transformer, Stable Diffusion), audio (SoundStream), and video (Latte), and how Transformers have spread far beyond text.
- It then shows how LLMs can be architected to decode these modalities.
All code is available on GitHub; aimed at readers who want the underlying mechanics, not just API usage.
Related event: Deleted Book Chapter Released Free: Visual Guide to Multimodal Generation(2 posts)→
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