Poolside
Low Trafficpoolside.ai
Overview
Poolside is a frontier AI research company building open-weight foundation models and agentic coding systems. Its flagship Laguna series targets software development use cases, offering large-context models for both cloud and on-device deployment. The company positions itself at the intersection of fundamental research and practical engineering intelligence.
By the Numbers
Founders
Former CTO of GitHub and Managing Director at Redpoint Ventures, Warner brings deep experience in developer tooling and open-source ecosystems. He was instrumental in scaling GitHub to a Microsoft acquisition.
Left a venture capital career at Redpoint to found Poolside, betting his own professional brand on the agentic coding AI wave.
Previously co-founded source{d}, a developer analytics and ML-on-code startup, giving him a rare background in applying machine learning directly to source code at scale. He is a recognized researcher in the code intelligence space.
His earlier company source{d} was acquired by Athenian, and his work on code embeddings laid conceptual groundwork for what became Poolside.
Funding
Competitors
Microsoft-backed, deeply embedded in VS Code and GitHub workflows but closed-weight and tied to OpenAI models
Fast-growing AI-native IDE focused on developer UX rather than building foundation models
Enterprise-focused code completion with a strong privacy and on-premise story, but smaller model scale
Free-tier focused agentic coding IDE with its own models, competing directly on price and accessibility
European open-weight model lab with broader general-purpose scope rather than coding specialization
Chinese open-weight model lab producing strong coding models at low cost, a key competitive threat
Revenue & Model
Hiring Signals
Tech Stack
Web Presence
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Trackers & Analytics
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How They're Doing
Poolside is in active growth mode following a large Series B raise and the public launch of its Laguna model series. The release of Laguna s 2.1 (118B parameters, 1M-token context) and the lighter Laguna xs 2.1 positions the company as a serious open-weight competitor in code intelligence. Distribution via OpenRouter and Vercel AI Gateway signals a developer-first go-to-market strategy gaining early traction.
●Launched Laguna s 2.1 and Laguna xs 2.1 open-weight models with up to 1M token context windows
●Integrated into OpenRouter and Vercel AI Gateway for broad developer accessibility
Prognosis
Poolside is well-capitalized with strategic investors including NVIDIA and ServiceNow, giving it both compute access and enterprise distribution channels. The open-weight model strategy differentiates it from closed competitors and could accelerate adoption among enterprises wary of vendor lock-in. The primary risk is the intensely competitive coding AI market, where well-funded rivals like GitHub Copilot and fast-moving startups like Cursor are vying for developer mindshare.
●Enterprise adoption of on-device Laguna xs models for air-gapped or security-sensitive environments
●Strategic integration with ServiceNow and other investor platforms as embedded coding intelligence
●Growing demand for long-context code models that can reason over entire codebases
●Expansion of agentic coding pipelines beyond completion into full software engineering automation
●Intense competition from Microsoft/GitHub, Google, and well-funded startups in the same coding AI niche
●Rapid commoditization of foundation model capabilities driving down differentiation
●Retaining top research talent against offers from OpenAI, Anthropic, and Google DeepMind
●Burn rate risk given large headcount and compute costs relative to early-stage revenue
Recent News
Poolside raises ~$500M Series B at ~$3B valuation with investors including NVIDIA and ServiceNow
Bloomberg / TechCrunch
Poolside launches Laguna s 2.1 (118B) and Laguna xs 2.1 (33B) open-weight coding models
Poolside Blog
Laguna models made available via OpenRouter and Vercel AI Gateway for developer access
Poolside Blog
Poolside announces research-preview playground for developers to experiment with Laguna models
poolside.ai
Fun Facts
- 01The company name 'Poolside' evokes laid-back California developer culture, deliberately contrasting with the high-pressure framing of most AI labs.
- 02Strategic investor eBay is an unusual backer for an AI coding startup, suggesting potential internal platform use cases for AI-assisted commerce engineering.
- 03The 'Model Factory' blog series is a nod to industrial-scale model production, reflecting the founders' belief that AI model building should be an engineering discipline as much as research.
Timeline
Integrated Laguna models into OpenRouter and Vercel AI Gateway for broad developer distribution
Launched Laguna s 2.1 (118B, 1M context) and Laguna xs 2.1 (33B, 256K context) as open-weight releases
Research preview launched, early developer access to Laguna models begins
Raised ~$500M Series B at ~$3B valuation with strategic investors including NVIDIA, ServiceNow, and eBay
Raised seed and early funding to begin building coding-focused foundation models
Poolside founded by Jason Warner and Eiso Kant in San Francisco