DeepSeek Web

DeepSeek Web is the chat tab linked from the homepage as Chat Now. The URL is chat.deepseek.com. The V4 announcement tells you to try Expert Mode and Instant Mode there. I treat Instant as Flash and Expert as the heavier Thinking path. Both inherit the 1M context default that V4 made standard on official services.

There is a companion app on the official download page. I used the web tab for this review because it is the door the homepage puts first. No account lives on this overview site. If you want the tab itself, use the official chat host — the next-step dialog on this page will remind you of that.

Related: daily chat, Thinking Mode, DeepSeek-V4-Flash.