Most AI apps feel slow, not because the models are bad, but because the UX is broken.
In traditional web apps, a 200ms request/response cycle feels instant.
With LLMs, responses can take 5, 10, or even 20 seconds—and a spinner during that time feels like a broken product.
In this video, you’ll learn:
– Why non-streaming AI responses break UX
– What really happens when you call an LLM without streaming
– How manual streaming with fetch actually works (and why it’s fragile)
– Why provider-specific stream parsing becomes technical debt
– How the Vercel AI SDK turns streaming into a clean, portable abstraction
– The mental shift that makes AI apps feel instant and alive
This is a practical, developer-first breakdown for JavaScript & TypeScript engineers building real AI products.
If you’re building chat UIs, copilots, or AI-powered apps, this is a pattern you need to understand.
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