We’re inviting India’s developer community to showcase what they’ve built with Sonnet 4.5 at the Accel + Anthropic Dev Day, a one-day, invite-only developer summit bringing together India’s finest CTOs, product leaders, and technical founders.
The top 3 submissions will receive up to $2,500 in Claude credits, and the opportunity to demo their builds live at the event.
The top 50 submissions will receive an invite to attend the event in person - with access to Anthropic’s roadmap keynote and sessions with India’s leading CTOs.
What to Build
- Create something new using Sonnet 4.5, via Claude Code or the Claude API
- Your project should be relevant, useful, and impactful - whether for startups, enterprises, or the wider developer ecosystem.
- Think bold: tools that scale businesses, experiments that reimagine workflows, or apps that open entirely new categories.
Our focus theme: Enterprise Agents & Vertical Copilots — in fintech, health, logistics, education, compliance, customer support, HR, and beyond.
Requirements
What to Submit:
Participants must:
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Build a working demo using Sonnet 4.5, via Claude Code or the Claude API
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Submit:
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A 3-minute demo video showing the app in action.
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A short description (max 300 words) explaining what you built, who it’s for, and how you’ve used Claude.
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A GitHub repo or app link to allow judges to review functionality.
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Projects must be new builds or substantial new features (no resubmissions of old work).
Prizes
First Place
$2500 in Claude Code Credits and an invitation to present your demo at the Accel + Anthropic AI Dev Day in Bangalore on Saturday, October 11th.
Second Place
$1500 in Claude Code Credits and an invitation to present your demo at the Accel + Anthropic AI Dev Day in Bangalore on Saturday, October 11th.
Third Place
$1000 in Claude Code Credits and an invitation to present your demo at the Accel + Anthropic AI Dev Day in Bangalore on Saturday, October 11th.
Top 5
An invitation to present your demo at the Accel + Anthropic AI Dev Day in Bangalore on Saturday, October 11th.
Devpost Achievements
Submitting to this hackathon could earn you:
Judges
Chitranjan Jain
Accel
Danny Delaney
Anthropic
Chloe Ho
Anthropic
Prayank Swaroop
Accel
Judging Criteria
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Relevance
Does the project use Claude in a helpful, harmless, and honest way? Is the project’s concept innovative and unique? -
Pitch
Does the project seem useful, good, and necessary? Is the pitch good? How effectively does the team present their project? -
Technical Implementation
How well has the team implemented the idea? Does the code or demo work? -
Future Potential
What is the project’s long-term potential for success, growth, and impact? Is this a startup or a longer-term project?
Questions? Email the hackathon manager
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