SK Telecom's strategic investments in AI and 5G, along with strong financial performance, suggest potential for future growth ...

Access is free, but a paid subscription does exist. Both require you to create an account. The free tier offers users "unlimited messages, interactions, and history" with its GPT-3.5 model.

DeepSeek-R1 released model code and pre-trained weights but not training data. Ai2 is taking a different approach to be more open.