🇺🇸 Best Foundation Models AI Startups in United States

AI safety lab building Claude — a helpful, harmless, honest AI assistant.

Creator of ChatGPT, GPT-4, and the leading frontier AI lab.

Building frontier code models to automate software engineering and research.

AI-powered answer engine delivering real-time, cited responses to complex queries.

Efficient general-purpose foundation models built for edge, on-device, and cloud deployment at every scale.

Applied AI research for video, image, and 3D.

Foundation models for physical world AI

Universal AI brain for any robot

Building safe superintelligence

The open AI cloud

Full-stack generative AI for enterprise

Chat with millions of user-created AI characters.

Production-grade generative AI serving

Fastest AI inference on the planet

AI platform for software engineering

Empathic AI voice and emotion intelligence

Multimodal AI models for the enterprise

Wafer-scale AI chips for unprecedented speed

Sustainable AI cloud infrastructure

Dream Machine — the world's most realistic AI video

Run AI models in the cloud

AI video personalization platform

The fastest AI inference platform, purpose-built for agentic AI with custom dataflow technology and three-tier memory architecture.

Snorkel AI helps frontier labs and AI teams develop specialized training data and environments to differentiate their models and agents.