# Veo Reference Index

This directory contains technical specifications and multi-language SDK patterns for Google's **Veo** video generation models:

- **[veo-3-1.md](veo-3-1.md)**: Complete technical reference for `veo-3.1-generate-preview`, `veo-3.1-fast-generate-preview`, `veo-3.1-lite-generate-preview`, and `veo-3.0-generate-001`, including parameter constraints, keyframe interpolation (`last_frame`), asset reference images (`reference_images`), `+7s` video extensions, and Python/TypeScript/Go/REST examples.