What Is DeepSeek AI?
Harry
· 13 Sep 2026
· 2 views
The DeepSeek Lab
DeepSeek is an artificial intelligence research company that builds large language models and makes its research widely available. Its models became well known for strong reasoning at a fraction of the usual cost.
Popular Models
- DeepSeek-V3 - A large general-purpose language model.
- DeepSeek-R1 - A reasoning model that shows its step-by-step thinking before answering.
- Distilled variants - Smaller versions of R1 that run on more modest hardware.
Why It Stands Out
The models are released with open weights, so anyone can download, run and fine-tune them. The public chat service is free, and the API is inexpensive compared with many commercial alternatives.
Key Points
- DeepSeek publishes cutting-edge open-weight models.
- R1 is a reasoning model that explains its thinking.
- The web and mobile chat are free to use.
- Open weights mean you can run models yourself.