Build with Sai.
Win $500 each.
Follow Sai on socials, post your hack with #SaiCal, and every member of your team has a chance to take home a $100 Amazon gift card plus $400 Sai Credits.
Free credits
Build on us — credits are unlimited
Every Cal Hacks team builds on Sai for free, with unlimited credits for the whole two-day hackathon.
We’ll share the invitation code at the workshop, our booth, and in Slack. Enter it at sign-up for a $500 credit top-up.
Running low? Credits are unlimited for Cal Hacks — email zening@simular.ai and we’ll top you up.
How to win
Three steps to your prize
- 01
Follow Sai
Every teammate follows Sai on at least one platform — that’s @sai_borg on X, and the Sai page on Instagram and LinkedIn.
- 02
Post with #SaiCal
At least one teammate posts about your build, adds #SaiCal, and tags Sai. The handle depends on where you post:
- X@sai_borg
- Instagram@sai.simular.ai
- LinkedInSimular AI
- 03
Send your proof
Screenshot your follows and post, then email them in to confirm your team’s eligibility to win the prize.
zening@simular.ai
Judging
How winners are chosen
Every entry is judged on creativity. To qualify, your team has to use a Simular product in a meaningful way.
Judged on creativity
We’re looking for inventive, surprising ways to put Simular’s products to work.
Use a Simular product — Sai or SimuLang — in a meaningful way, not just a token mention.
Novel use cases
Show us something we haven't seen Sai or SimuLang do before.
Technical execution
Clean, working, and genuinely impressive under the hood.
Real-world impact
Solves an actual problem someone would use tomorrow.
Workshop
Vibe Hacking Workshop
12:00 – 1:00 PM
Floor 2 · Ddoski’s Classroom
Human vibe coding is the past — let agents vibe code for you.
In this hands-on workshop, you’ll learn vibe hacking using Sai and SimuLang — completing an entire hackathon project from scratch without writing a single line of code. Bring an idea, leave with a shipped app.
- No coding required
- Ship a real app
- No CS background
Ready to claim your prize?
Send your screenshots to the Simular team and we’ll confirm your entry. Every qualifying teammate wins.
zening@simular.ai$100 Amazon gift card + $400 Sai Credits awarded per person, for every member of a qualifying team.