Hugging Face

Hugging Face is a company that hosts an open model repository and tools (like the Transformers library) for machine learning; it had a $2B valuation after a 2022 funding round. Functions more like a routing/access layer than a training lab -- its Inference Providers feature routes requests across Together, Fireworks, Replicate, and others, similar to OpenRouter.

Ecosystem functionIt acts as a hub for developers to share and use open AI models and datasets, differentiating itself by community-driven model sharing and providing an inference API platform.

Business modelModel hub & ML tools