Hey builders,
When we launched Nowa 3.0, one of the biggest highlights was the AI agent. It could design beautiful UI, handle complex multi-screen flows, and write clean Flutter code — all at once.
That didn’t happen by accident. We built a whole infrastructure around the agent to make sure it doesn’t just generate something “nice,” but instead gives you production-ready results with clean, scalable Flutter code. And for the past months, we’ve been running it on Claude Sonnet 4, one of the strongest coding models out there.
Today, we’ve taken a big step forward: Nowa AI is now powered by Claude Sonnet 4.5 — upgraded the same day it was released.
So, what’s new — and what’s next? Let’s take a look.
Meet Claude Sonnet 4.5
Claude Sonnet 4.5 makes Nowa even sharper. Here’s what we’ve noticed right away:
- Better at complex tasks → it now coordinates across multiple files and screens more smoothly, keeping things consistent across your whole project.
- More polished UI → layouts come out cleaner, modern, and more visually compelling, without extra tweaking.
What’s next for Nowa AI?
Upgrading to 4.5 is just the start. We’re already working on a bunch of improvements that will make using Nowa AI feel even more natural and fun:
- Streaming output → instead of waiting for the results to drop all at once, you’ll see the response unfold live, which feels way better.
- Project-level prompts → right now, it’s best to keep prompts focused on specific widgets or screens. Soon, you’ll be able to give bigger instructions, and Nowa will break them down into smaller steps automatically, focusing on each one individually — so bigger prompts don’t come at the cost of quality.
- Automatic bug fixing → if the AI-generated code has a bug or two, the agent will catch and fix it on the spot, so you don’t have to ask it to do so afterward.
- Custom packages & code → the AI will be able to pull in packages directly from pub.dev and write custom code, even if it’s not something built into Nowa yet.
Final thought
We’re seeing incredible apps being built with Nowa 3.0 already — and every upgrade like this brings us closer to our mission: making Nowa the fastest, most fun, and most powerful way to build production-ready Flutter apps.
And with Claude Sonnet 4.5 under the hood, the best is still ahead.
Happy building! ✨