Poolside
AI code-generation startup raised $500M+ in 2026 to rival Cursor & Copilot. See Poolside's latest funding round details, investors, and valuation.
Overview
Poolside is building the next generation of AI foundation models purpose-built for software engineering. Co-founded by Jason Warner (former CTO of GitHub) and Eiso Kant, the company takes a fundamentally different approach from general-purpose LLMs by training models from scratch on code-specific data with reinforcement learning from code execution. This approach produces models that not only generate code but understand software architecture, testing patterns, and deployment practices. Poolside has attracted top AI researchers from DeepMind, Google Brain, and Meta AI, and its models are designed to serve as the backbone for the next wave of AI-powered development tools.
Funding History
Code-specialized foundation model lab scales training infrastructure.
Poolside raises $126M to scale training infrastructure for its code LLMs.
Poolside raises seed to build code-specialized foundation models.
Frequently Asked Questions
- How much has Poolside raised in total?
- Poolside has raised a total of $652M across 3 funding rounds.
- Who are Poolside's investors?
- Poolside's investors include Bessemer Venture Partners, Felicis Ventures, Nat Friedman & Daniel Gross, Undisclosed, Bain Capital Ventures.
- What does Poolside do?
- Poolside is building the next generation of AI foundation models purpose-built for software engineering. Co-founded by Jason Warner (former CTO of GitHub) and Eiso Kant, the company takes a fundamentally different approach from general-purpose LLMs by training models from scratch on code-specific data with reinforcement learning from code execution. This approach produces models that not only generate code but understand software architecture, testing patterns, and deployment practices. Poolside has attracted top AI researchers from DeepMind, Google Brain, and Meta AI, and its models are designed to serve as the backbone for the next wave of AI-powered development tools.
- When was Poolside founded?
- Poolside was founded in 2023 and is headquartered in New York, NY.
- Where is Poolside headquartered?
- Poolside is headquartered in New York, NY.
Investors
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