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Y Bombinator

We Bombed 7 times, you shouldn't

Productivity
Artificial Intelligence
Startup Lessons

Y-Bombinator is an agent built with 100x Bot by experienced founders. We built YB to help newer YC applicants to find confidence in their merits and internally check where their strengths and weaknesses lie.

Top comment

Hey PH!

We've all spent more time looking at the YC "Submit" button than at our own reflection.
To be honest, between our team members, we've got a combined 7 rejections under our belts.

We’ve made every mistake in the no-no-book: over-indexing on jargon, failing to prove "Why Us?", and ignoring the market math that YC partners care about.

We got in eventually, but the trauma of those "No's" stayed with us.

With the S26 deadline on Feb 9th, we built Y-Bombinator on 100x.bot to give you the "insider" audit we wish we had 5 years ago.

The agent doesn't just read your pitch; it scrapes your GitHub for technical depth and your LinkedIn for "Founder DNA" to see if you actually fit the YC pattern.

We want you to iterate until you’re ready. To get extra credits:

1. Screenshot your result card from our landing page,

2. Post it on X.com/ LinkedIn and mention @100xbot (Use the share buttons).

3. We’ll verify the tag and load an extra 1000 credits instantly!


We're in the comments all day. Drop your story, share your results, let's exchange war stories and inspire the future cohorts!

Comment highlights

Great concept! Having faced a rejection from YC ourselves, I can see how valuable an internal 'strength and weakness' check can be. We are skipping this round but preparing for the next one, so this tool is going on my must-watch list. Good luck with the launch!

Congrats on the launch! Love how Y Bombinator turns real YC scar tissue into a focused, founder-friendly prep agent.​

Guys, I just love your daring to come up with something like this! Hehe...

But yeah, I like the intent even more. Helping others through lessons learnt by you.

Just a minor feedback, typo in 'weaknesse' and of course the blank hyphenated promo code (it's not mandatory on PH)

Upvoted already. Make it big! All the very best for your launch.

Hi folks: quick question: why do I need to install the 100x Bot browser extension to use this?

From the outside, it feels like unnecessary bloat and more like a way to drive extension installs than something required for the product’s core purpose. That comes across as a bit shady, which is disappointing because this looked great at first.

If I’m misunderstanding the rationale, can you explain what the extension is needed for (and whether there’s an option to use the product without it)?

The founder community pulled us through our rejections, so we’re opening up our week to help you get through yours. If you want a human perspective, email us at: [email protected]

Please make sure your email subject contains "Application Help" if you're yet to apply, or "Mock Interview" if you're preparing for the interview (Helps us prioritize)