Together AI
together.ai
A cloud platform for running, fine-tuning, and deploying open-source AI models, with fast inference and competitive pricing.
Why it is useful
Offers one of the most comprehensive catalogs of open-source model hosting — Llama, Mistral, Qwen, and hundreds of others — through a single OpenAI-compatible API. The inference speed is among the fastest available for large open-source models. For developers who want open-source model quality without managing their own GPU infrastructure, it is the clearest option.