AI SDK 5 Introducing type-safe chat, agentic loop controls, data parts, speech generation and transcription, Zod 4 support, global provider, and raw request access.

Shipping velocity is directly proportional to data structure quality, especially in the age where UI can be increasingly treated as an ephemeral asset. More practically, this includes: - the type of store you use e.g. relational, graph etc. - the way you structure your data into entities and relationships - the way you capture information for e.g. you might want to store a status as a boolean (e.g. is_disabled) or you could choose to infer this info from a timestamp (e.g. disabled_at), both have pros and cons - the way you connect cross-platform datasets e.g. database, storage, logs, etc. - the way you structure your API, construct queries and consume data Being data-first is a cheat code to increasing your shipping velocity. Bad data decisions can be extremely painful to undo and when you start to see them clearly, you can never go back.