Built with Opus 4.7: a Claude Code hackathon
Global virtual hackathon using Claude Code with Opus 4.7, offering a ₹93 lakh prize pool and ₹46,500 API credits for participants. Open to Indian builders.
- Funding amount
- ₹90L (competition)
- Funding type
- Competition
- Application deadline
- Rolling
- Eligible stage
- Any stage
- Location
- Open to startups registered in India
Overview
Cerebral Valley, an international community for builders, is running a week-long virtual hackathon called "Built with Opus 4.7: a Claude Code hackathon." Participants will use Anthropic's latest large language model, Claude Code backed by Opus 4.7, to create innovative projects — from workplace automations to novel AI-powered solutions. The hackathon is open to developers worldwide, including Indian builders, but only 500 participants will be selected after a registration approval process. Projects can cover any theme that leverages the model's capabilities. The event runs online from April 21 to April 26, 2026. Submissions are judged by a panel that includes Boris Cherny, Lydia Hallie, and members of the Claude team.
Tracks / Themes There is no fixed track; participants are free to build any application using Claude Code and Opus 4.7 — for example, developer tools, creative AI apps, workplace automations, or other inventive ideas.
Format & Timeline The hackathon takes place virtually from April 21 to April 26, 2026. After the week of building, a panel of judges evaluates the submissions and winners are announced. All selected participants receive ₹46,500 in API credits to support their development work.
Prizes Total cash prize pool: ₹93 lakh.
- 1st Place: ₹46.5 lakh
- 2nd Place: ₹27.9 lakh
- 3rd Place: ₹9.3 lakh
- Three additional prizes of ₹4.65 lakh each.
Highlights
- Cerebral Valley hackathon lets you build with Claude Code + Opus 4.7.
- Total cash prize pool of ₹93 lakh and ₹46,500 API credits for every participant.
- Open to builders globally, including India — up to 500 spots available.
- Virtual event from April 21 to April 26, 2026.
- Judges include Boris Cherny, Lydia Hallie, and Claude team members.
Who can apply
The hackathon is open to builders globally, including those in India. Registration requires an approval process, and only up to 500 participants will be selected. No specific stage, industry, entity type, or DPIIT/MSME registration is required. The program is ideal for developers, engineers, and innovators eager to experiment with Claude Code and Opus 4.7.
Built with Opus 4.7: a Claude Code hackathon is open to startups at any stage. It is open to startups registered anywhere in India.
- Eligible stage
- Any stage
- Location
- Open to startups registered in India
Deadline & timing
Built with Opus 4.7: a Claude Code hackathon accepts applications on a rolling basis — there is no fixed cut-off date, so eligible startups can apply at any time. Because rolling programmes can pause without notice, confirm the window is still open on the official site before you start.
What the funding covers
- Total cash prize pool of ₹93 lakh.
- 1st Place: ₹46.5 lakh
- 2nd Place: ₹27.9 lakh
- 3rd Place: ₹9.3 lakh
- Three additional prizes of ₹4.65 lakh each.
- Every selected participant receives ₹46,500 in API credits (not limited to winners).
How to apply
Applications are submitted on the official portal. Confirm the current deadline and document checklist there before you start.
Selection process
Registration is subject to approval. Up to 500 participants will be selected to compete. After the hackathon week, submissions are judged by a panel including Boris Cherny, Lydia Hallie, and members of the Claude team. Winners are announced after the judging period.
Documents you’ll need
Before you apply to Built with Opus 4.7: a Claude Code hackathon, keep the following documents ready:
- A pitch deck or short business plan describing the problem, product and traction
- Company registration documents and PAN
- Founder identification (PAN / Aadhaar) and brief profiles
- Recent financial statements or projections
- Product details — a demo, prototype or working link if available
Exact requirements are confirmed on the official application portal — treat this as a preparation checklist.
Who this is best for
Built with Opus 4.7: a Claude Code hackathon is best suited for startups in India seeking non-dilutive funding of ₹90L. If that describes your startup, review the eligibility criteria above before applying.
Frequently asked questions
Who can apply for this hackathon?
The hackathon is open to builders globally, including those from India. Registration requires approval, and only up to 500 participants will be selected.
What is the deadline to apply?
The deadline is not specified. You should register as early as possible through the official Cerebral Valley event page, as only 500 spots are available after approval.
What are the prizes?
The total cash prize pool is ₹93 lakh. 1st place gets ₹46.5 lakh, 2nd place gets ₹27.9 lakh, 3rd place gets ₹9.3 lakh, and three additional prizes of ₹4.65 lakh each are awarded. All selected participants also receive ₹46,500 in API credits.
When does the hackathon take place?
The hackathon runs virtually from April 21 to April 26, 2026.
Do I need DPIIT or MSME registration?
No, DPIIT or MSME registration is not required for this hackathon.
Is there an entry fee or is equity taken?
No, this is a competition. There is no equity taken and no entry fee is mentioned.
What kind of projects can I build?
You can build any project using Claude Code with Opus 4.7. Examples include workplace automations, developer tools, creative AI apps, or entirely novel applications.
How do I apply?
You register through the official Cerebral Valley event page at https://cerebralvalley.ai/e/built-with-4-7-hackathon. All registrations are subject to approval.
How much funding does Built with Opus 4.7: a Claude Code hackathon provide?
Built with Opus 4.7: a Claude Code hackathon provides ₹90L (up to) as competition. Always confirm the exact amount and any conditions on the official site, as figures can change between cohorts.
Alternatives to Built with Opus 4.7: a Claude Code hackathon
Not sure Built with Opus 4.7: a Claude Code hackathon is the right fit, or already applied? These are other grants open to Indian startups that founders shortlist alongside it.
Questions from founders
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