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Y Combinator (YC) vs a16z Speedrun
Founders often weigh Y Combinator (YC) against a16z Speedrun. Here's how the two compare on money, terms, format and selectivity — and how to decide.
Side by side
| Y Combinator (YC) | a16z Speedrun | |
|---|---|---|
| Investment | $500K | $1M |
| Equity | 7% | — |
| Instrument | SAFE | Equity |
| Program length | 3 months | 3 months |
| Location | San Francisco | San Francisco |
| Remote | No | No |
| International founders | Accepted | Accepted |
| Stages | Pre-seed, Seed | Pre-seed, Seed |
| Applications | Multiple per year | Multiple per year |
| Cohort size | ~200 | ~50 |
| Acceptance rate | ~2% | ~1% |
| Questions on the form | 29 | 52 |
Terms change between batches — confirm on each program's official site before applying.
Key differences
- a16z Speedrun writes the bigger cheque: up to $1M, against $500K from Y Combinator (YC).
- a16z Speedrun is more selective (about 1% accepted vs 2%).
Choose Y Combinator (YC) if…
The gold standard. $500K for 7%. Changes everything.
The most influential startup accelerator in the world. 3-month batch program culminating in Demo Day. YC alumni network is unmatched — investors take your call just because you got in.
How to apply to Y Combinator (YC) →Choose a16z Speedrun if…
a16z's accelerator. Up to $1M + $5M in credits.
Andreessen Horowitz's flagship accelerator. 12-week in-person program in SF. Access to a16z's massive operational team for GTM, brand, media, and talent. $180M+ deployed since 2023.
How to apply to a16z Speedrun →FAQ
Is Y Combinator (YC) better than a16z Speedrun?
Neither is better for everyone. a16z Speedrun writes the bigger cheque: up to $1M, against $500K from Y Combinator (YC). a16z Speedrun is more selective (about 1% accepted vs 2%). Choose by stage, sector, location and the terms you can accept — or apply to both.
Can I apply to both Y Combinator (YC) and a16z Speedrun?
Yes. Applying to several programs is normal, and many founders run applications in parallel. Most of the material — one-liner, traction, team, market — carries over between forms.
Which is harder to get into, Y Combinator (YC) or a16z Speedrun?
Both are selective. Estimates put Y Combinator (YC) at about 2% and a16z Speedrun at about 1% of applicants accepted. Neither publishes exact figures.
Why choose? Draft both applications from one profile.
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