Claude Builder Club App Challenge

To celebrate the launch of Sonnet 4.5, we’re hosting an app building challenge. You have until October 1st 11:59PM to build an app with Sonnet 4.5. You can build your app with any platform (Claude Code, claude.com, VSCode, XCode, Cursor, Windsurf, etc) and it can be any type of app. The only requirement is that all of the code is generated within the 48 hour period with Sonnet 4.5, and your app pushes the limits of what’s possible to create with AI-assisted coding. We’ll be selecting the best app created at Waterloo to win a $50 gift card and Claude merch! Once you’re ready, submit your app by sending links to your demo (GitHub/YouTube/Twitter/LinkedIn) in our respective discord channel. The hackathon is live from right now to 11:59pm on Wednesday (10/01). The Anthropic team will also be selecting apps built during this challenge for potential features on Claude socials throughout the week. If you’d like Anthropic to consider your app, fill out this form: https://forms.gle/ufzUcLgDkZbrrK5N6 Happy building :) 👾 #claudepartner