Essential AI

Building Instruments of Intelligence

San Francisco, United States · $64.8M raised

Employees
11–50
Business Model
B2B
Total Funding
$64.8M
Last Round
$56.5M Series ADec 2023
Rounds
2

Totals include recorded grants and other qualifying funding, not just equity. What counts toward funding.

About

Essential AI builds an open platform to accelerate the science and engineering of deep learning, aiming to empower researchers and builders with pretraining focused on frontier STEM and code capabilities and methodologies grounded in scientific rigor and engineering discipline. In December 2025, the company released its first open-source model, Rnj-1, a base and instruction-tuned pair of large language models built in the spirit of open AI research.

Summary

Essential AI is an Artificial Intelligence company based in San Francisco, United States. It has raised $64.8M in total across 2 rounds, most recently a $56.5M Series A round in Dec 2023. Investors include Thrive Capital, March Capital and Alphabet.

Tech & App Stack

4 technologies & apps tracked

Every product and vendor across these categories, with where each signal came from.

Create a free account with 25 free credits every month, no card needed, to unlock the full tech & app stack, funding history, and valuations.

Funding History

Series ASeries ADec 2023
$56.5M

Sign up to see all 2 events

Funding: Seed through Series A. Amounts, valuations, and investors where available.

Investors

Similar Companies

Your company? Embed this profile

Add the live badge to your site — it stays current as your funding data updates.

Essential AI on Indexed.vc
<a href="https://indexed.vc/companies/essential-ai"><img src="https://indexed.vc/api/badge/company/essential-ai" alt="Essential AI on Indexed.vc" width="260" height="76" /></a>