# Pax AI funding: rounds and investors

> Pax AI has raised $4.5M across 1 round since 2025. Investors include Y Combinator, General Catalyst and Soma Capital. Every round with its source.

Source: https://millionrounds.com/company/pax-ai (Millionrounds; every figure on the page links to its filing or article)

United States · [Seed startup](https://millionrounds.com/companies)

# Who invested in *Pax AI*

One round we have observed, with the 5 investors named in it. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

AI

Funding summary Updated 26 Oct 2026

**$4.5M** raised across 1 round since 2025, from 1 source

- **Latest round:** Seed, $4.5M Apr 2025
- **Investors:** 5

See who backed them

## The rounds

- **Apr 2025** Seed **$4.5M** [Y Combinator](https://millionrounds.com/fund/y-combinator) [General Catalyst](https://millionrounds.com/fund/general-catalyst) [Soma Capital](https://millionrounds.com/fund/soma-capital) [Z Venture Capital](https://millionrounds.com/fund/z-venture-capital) [Basis Set Ventures](https://millionrounds.com/fund/basis-set-ventures) Source recorded

## Everyone who backed them

[Y Combinator](https://millionrounds.com/fund/y-combinator) Accelerator **1** round

[General Catalyst](https://millionrounds.com/fund/general-catalyst) VC firm **1** round

[Soma Capital](https://millionrounds.com/fund/soma-capital) VC firm **1** round

[Z Venture Capital](https://millionrounds.com/fund/z-venture-capital) Corporate VC **1** round

[Basis Set Ventures](https://millionrounds.com/fund/basis-set-ventures) VC firm **1** round

Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=pax-ai).

## Quick answers about Pax AI

### Who invested in Pax AI?

Pax AI's investors include Y Combinator, General Catalyst, Soma Capital, Z Venture Capital and Basis Set Ventures.

### How much has Pax AI raised?

Pax AI has raised $4.5M across 1 round since 2025.

### When did Pax AI last raise?

Pax AI's most recent round was a Seed of $4.5M in Apr 2025.

### What was Pax AI's biggest round?

Its most recent round, $4.5M in Apr 2025, is also its largest on record.

### Who backed Pax AI first?

Pax AI's first round on record, in Apr 2025, was backed by Y Combinator, General Catalyst and Soma Capital and 2 others.

### What stage is Pax AI at?

Pax AI's latest named round is a Seed, in Apr 2025.

### Where is Pax AI based?

Pax AI is based in the United States.

## Companies like Pax AI

In the same sector, and raised in the last eighteen months.

[**SpaceX** $42B · Oct 2026](https://millionrounds.com/company/spacex)[**xPay** $1.5M · Oct 2026](https://millionrounds.com/company/xpay)[**Albert Invent** $20M · Oct 2026](https://millionrounds.com/company/albert-invent)[**FORT Robotics** $39M · Oct 2026](https://millionrounds.com/company/fort-robotics)[**Pika** $216M · Oct 2026](https://millionrounds.com/company/pika)[**Vertical Semiconductor** $84M · Oct 2026](https://millionrounds.com/company/vertical-semiconductor)

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