DeepSeek (Hangzhou, China): founded in 2023 as a division of the brokerage High-Flyer, with ~200 employees it builds the most efficient open-weight LLMs in their class, focused on low-activation MoE. DeepSeek V4.1-Flash pushes 552B total parameters with ~8B active and a 1M context. The models in the catalog are the child resources.
| Headquarters | Hangzhou (China) |
|---|---|
| Founded | 2023 |
| Employees | ~200 |
| Revenue | Not disclosed |
| Ownership | Private company (a division of High-Flyer) |

