Hey there!

What we'll cover in this email:

• Tailwind course published on Codely Pro Standard!
• Is Claude Sonnet 4.6 good for programming?

⏱️ Estimated reading time: 1 quick minute.

⛵ Tailwind course published on Codely Pro Standard

A few weeks ago we published a post mentioning that Software Architecture is more important now than ever.

From that post, there's something worth clarifying: it might seem like it only applies to Backend, but that's not the case. It also applies to frontend, and within that, to the styling side.

There's a huge difference in how code can scale, whether developed by people or by agents, when there's a good architecture behind it. That's why we decided to invest in the Tailwind CSS: Architecture and Best Practices course.

Course now available on Codely Pro Standard. 😊

✴️ Is Claude Sonnet 4.6 good for programming?

Claude Sonnet 4.6 has been released, and it did so without much fanfare.

In benchmarks it's a very interesting model, competing with the previous version of Opus (4.5) and it's significantly cheaper.

We've been testing it for the past couple of days, and here are our takeaways and tips:

• If you don't have thinking effort set to maximum with Sonnet 4.6, it falls way behind.
• In Claude Code, Opus 4.6 gives better results for planning.
• Opus 4.6 is also better for implementing the plan, but the difference isn't as big.
• That small difference makes using Sonnet for implementation more attractive due to the lower cost.
• Therefore, Opus 4.6 for planning and Sonnet 4.6 for implementing.
• In Claude Code this can be automated with a not-very-well-documented configuration.
• In a Claude Code session, type /model opusplan, and this way Opus will only be used for plans and Sonnet for everything else.

We're getting used to very high intelligence levels from models. If Sonnet 4.6 had been released 3 months ago, it would have been a revolution. Today it was an incremental improvement.

Tomorrow at 9am CET we'll be sharing more about how we've used Sonnet 4.6 and more tech news. See you on our YouTube and Twitch!

And since you've made it to this part of the newsletter (which you reached very quickly today), here's the joke of the week, which I know you were waiting for:

> We arrested a programmer for writing unreadable code. When we asked if they had anything to declare, they said "no comment". 😂 😂 😂

Cheers!