# Built with Opus 4.7: a Claude Code hackathon

- **When:** Apr 21 at 12:00 PM – Apr 27 at 2:00 AM (EDT)
- **Where:** Online
- **Hosts:** [Cerebral Valley](https://cerebralvalley.ai/u/cv), [Anthropic](https://cerebralvalley.ai/u/anthropicai)
- **Format:** Hackathon
- **Registration:** Closed (the event has ended) — https://cerebralvalley.ai/e/built-with-4-7-hackathon
- **Page:** https://cerebralvalley.ai/e/built-with-4-7-hackathon

Join us again for **Built with Opus 4.7: a Claude Code virtual hackathon!**

**Opus 4.7 is our most capable model yet**, and we’re excited for you to push the limits of what it can do. Whether you’re a seasoned engineer or newly a builder, **show us what you can build in one week with Claude Code**. 

Some projects will start from **what you already know** — show us the thing only you'd know to build, the problem in your work or community that takes weeks but should take hours. Others will start from **what's next** — show us something that's easier to demo than to explain, an idea that doesn't exist yet but should.

We’ll select 500 participants and give each one $500 in Claude API credits to build for a week.** Compete to win $100k in Claude API credits**. 

Judges include [Boris Cherny](https://x.com/bcherny), [Cat Wu](https://x.com/_catwu), [Thariq Shihipar](https://x.com/trq212), [Lydia Hallie](https://x.com/lydiahallie), [Ado Kukic](https://x.com/adocomplete?lang=en), and [Jason Bigman](https://x.com/nosajab) from the Claude team.

Note: This event is fully virtual. Space is limited to 500 participants. Maximum team size is two. All participants must submit an application for approval.

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