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Y Combinator vs HAX

What Y Combinator and HAX each invest, the equity they take, who they suit and when applications close, from each programme's own pages.

Y Combinator vs HAX

Y Combinator

Funding
US$500,000 US$500k as two SAFEs signed together: $125k on a post-money SAFE for 7% and $375k on an uncapped MFN SAFE
Instrument
SAFE
Equity taken
7% 7% from the $125k post-money SAFE; the $375k uncapped MFN SAFE converts on the most favourable terms of SAFEs issued from around the start of the batch until the priced round
Programme fee
No fee YC says it charges companies no fees to take part
Duration
not published
Cohort size
not published
Cohorts
4 a year
Delivery
In person
Stages
Idea, pre-seed, seed
Sectors
Sector-agnostic
Open to founders from
Anywhere
Perks
  • Help with visas and incorporation for founders from outside the US
  • Access to Bookface, YC's founder platform, and alumni events

The batch lasts three months and opens with a three-day in-person retreat. YC also takes a pro rata right to invest in later rounds.

HAX

Funding
not published Up to US$550k on a pre-seed SAFE. The HAX FAQ describes the first cheque as US$250k (US$150k cash and US$100k in-kind) on a post-money SAFE with no valuation cap, paid in instalments
Instrument
SAFE
Equity taken
not published
Programme fee
not published
Duration
not published
Cohort size
not published
Cohorts
not published
Delivery
In person
Stages
Pre-seed, seed
Sectors
Hardware, Energy, Climate, Health tech
Open to founders from
not published
Perks
  • Analytics, chemistry, electrical engineering and mechatronics labs in Newark
  • Support from SOSV's in-house engineering team

SOSV describes the programme as up to six months with full access to labs, equipment, staff and co-working; the HAX FAQ says product development takes 6 to 18 months. SOSV can invest again in later rounds.

Where they differ

Where they differ
TermY CombinatorHAX
FundingUS$500,000not published
Equity taken7%not published
InstrumentSAFESAFE
Programme feeNo feenot published
Durationnot publishednot published
Cohorts4 a yearnot published
DeliveryIn personIn person
StagesIdea, pre-seed, seedPre-seed, seed
SectorsSector-agnosticHardware, Energy, Climate, Health tech
Based inSan Francisco, United StatesNewark, United States
Next deadline2 November 2026Any time

Which fits whom

Y Combinator fits founders

  • At the idea, pre-seed or seed stage
  • Who can be in San Francisco for the programme
  • In any sector
  • Willing to give up 7% equity; the standard offer is US$500,000

HAX fits founders

  • At the pre-seed or seed stage
  • Who can be in Newark for the programme
  • Working in hardware, energy, climate or health tech
  • Who will ask about equity first: the terms are not published

Application dates

Y Combinator

Open · closes 2 Nov 2026Winter 2027

Winter 2027: applications close 2 November 2026.

HAX

Rolling applications

Applications are accepted at any time.

Y Combinator vs HAX: questions founders ask

Which invests more, Y Combinator or HAX?

Y Combinator publishes a standard offer of US$500,000; HAX does not publish one.

Which takes less equity, Y Combinator or HAX?

Y Combinator takes 7%; HAX does not publish its equity terms.

Which closes first, Y Combinator or HAX?

Y Combinator closes on 2 November 2026; HAX has no published deadline ahead.

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