DeepSeek has launched its newest AI fashions, the V4 Professional and Flash variations, a bit over a yr after it went viral and have become the highest rated free app on Apple’s App Retailer within the US. “Welcome to the period of cost-effective 1 million context size,” DeepSeek mentioned in its announcement. Context size is what you name the utmost variety of tokens that an AI mannequin can bear in mind, so the larger it’s, the extra coherent and constant an AI is with regards to prolonged conversations. OpenAI’s lately introduced GPT‑5.5 has a context window starting from 400,000 to 1 million, for example.
The brand new mannequin remains to be open-source, permitting customers to obtain its code and modify it if they need. DeepSeek says V4 Professional has enhanced agentic capabilities and claims that it rivals prime closed-source fashions with regards to reasoning. It additionally says that it trails solely Gemini-3.1-Professional in wealthy world data. In the meantime, V4 Flash isn’t fairly as highly effective because the V4 Professional, nevertheless it has quicker response instances. Nonetheless, its reasoning talents carefully strategy V4 Professional, DeepSeek says, and it performs on par with with the Professional model on easy Agent duties.
Shortly after DeepSeek topped the App Retailer charts, it was banned to be used by US federal businesses and on government-owned gadgets. Authorities believed it was a nationwide safety danger and posed a risk to US AI shares. South Korea additionally paused downloads of its app over privateness issues.
