# Fiber AI funding: rounds and investors

> Fiber AI has raised $4.3M across 1 round since 2024. Investors include Y Combinator, Liquid 2 Ventures and Pioneer Fund. Every round with its source.

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

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

# Who invested in *Fiber AI*

One round we have observed, with the 6 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

**$4.3M** raised across 1 round since 2024, from 1 source

- **Latest round:** Seed, $4.3M Jan 2024
- **Investors:** 6

See who backed them

## The rounds

- **Jan 2024** Seed **$4.3M** [Y Combinator](https://millionrounds.com/fund/y-combinator) [Liquid 2 Ventures](https://millionrounds.com/fund/liquid-2-ventures) [Pioneer Fund](https://millionrounds.com/fund/pioneer-fund-2) [Soma Capital](https://millionrounds.com/fund/soma-capital) [Unpopular Ventures](https://millionrounds.com/fund/unpopular-ventures) [Team Ignite Ventures](https://millionrounds.com/fund/team-ignite-ventures) Source recorded

## Everyone who backed them

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

[Liquid 2 Ventures](https://millionrounds.com/fund/liquid-2-ventures) VC firm **1** round

[Pioneer Fund](https://millionrounds.com/fund/pioneer-fund-2) Private equity **1** round

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

[Unpopular Ventures](https://millionrounds.com/fund/unpopular-ventures) VC firm **1** round

[Team Ignite Ventures](https://millionrounds.com/fund/team-ignite-ventures) VC firm **1** round

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

## Also claim to have backed them

This firm lists Fiber AI as a portfolio company on their own website, but no report of a round names it. They are the firms' own claims, kept apart from the rounds above.

[trac.vc](https://millionrounds.com/fund/trac-vc) VC firm Per its own site

## Quick answers about Fiber AI

### Who invested in Fiber AI?

Fiber AI's investors include Y Combinator, Liquid 2 Ventures, Pioneer Fund, Soma Capital and Unpopular Ventures, and 1 more on record.

### How much has Fiber AI raised?

Fiber AI has raised $4.3M across 1 round since 2024.

### When did Fiber AI last raise?

Fiber AI's most recent round was a Seed of $4.3M in Jan 2024.

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

Its most recent round, $4.3M in Jan 2024, is also its largest on record.

### Who backed Fiber AI first?

Fiber AI's first round on record, in Jan 2024, was backed by Y Combinator, Liquid 2 Ventures and Pioneer Fund and 3 others.

### What stage is Fiber AI at?

Fiber AI's latest named round is a Seed, in Jan 2024.

### Where is Fiber AI based?

Fiber AI is based in the United States.

## Companies like Fiber 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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