Poolside AI
American artificial intelligence company
From Wikipedia, the free encyclopedia
Poolside AI or poolside is an American startup developing artificial intelligence to write computer software and coding applications.[2][3] It focuses on creating the "most capable AI" to automate and improve coding processes, emphasizing security, privacy, and efficiency for businesses, with plans to build artificial general intelligence through its large language model.[2][4]
- Jason Warner (President and Co-Founder)
- Eiso Kant (CTO and Co-Founder)
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| Industry | Artificial intelligence |
|---|---|
| Founded | 2023 |
| Headquarters | San Francisco, United States[1] |
Key people |
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| Products |
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| Website | poolside.ai |
History
Poolside AI was founded in early 2023 by Jason Warner, former CTO of GitHub, and Eiso Kant, a software entrepreneur.[2] The company started with a work from home model and had employees in the United States, United Kingdom and France.[5]
By October 2024 the company's $3 billion valuation giving it unicorn status.[6]
The first phase of Poolside's Project Horizon, a 2-gigawatt artificial intelligence campus located in Pecos County, Texas, started in October 2025.[7] The data center will be one of the largest in the United States.[8]
As of December 2025, Poolside has 150 employees worldwide. It is headquartered in San Francisco and invites its employees to a monthly concentrated work week at its Paris branch.[5]
Funding
Within its first year, Poolside secured seed funding of $26 million, followed by an additional $100 million funding round.[9][10] In October 2024, the company raised $500 million in a Series B funding round led by Bain Capital, DST Global and eBay, among others, which brought its valuation to $3 billion.[11][6][12] Poolside had shown a demonstration of its code assistant to these investors using the prompt "Write me the code for a snake video game in python".[2][8][6]
In October 2025, Nvidia announced that it would invest up to $1 billion in Poolside which would quadruple its valuation to $12 billion.[8]
Partnerships
In December 2024, Poolside and AWS announced a strategic partnership to offer secure and customizable generative AI solutions for software development on Amazon Bedrock and Amazon EC2. This partnership allows businesses to deploy Poolside's foundation models within their existing AWS environment, benefiting from AWS's security and performance.[13]
Poolside has signed contracts with RTX Corporation and other companies in the American defense industrial base, while working to sell its autonomous software development engine to Israeli defense companies.[5]
Activity
The company competes in two sectors with other AI companies, building both large language models and autonomous development products.[5] Poolside's software uses natural-language prompts from developers to create and test code that its executives have claimed gives the company's models an advantage in training "to act as software development assistants from the start".[5][6] It also has an agentic chat assistant that responds with suggestions as well as "context and control code review through a natural language interface".[14]
With its developments on artificial general intelligence, it has created an industrialized training infrastructure known as Model Factory, internal systems framework for building, training and evaluating large foundation models that automate the full lifecycle of model development.[5]