DeepseekAI Conversational ChatDeepseek is the model and application platform provided by DeepSeek, covering the web, apps, APIs, and developer tools. As of August 2026, the official website shows that DeepSeek-V4-Pro is available on the web, in the app, and through the API; V4-Flash and the experimental V4-Flash-Vision-Exp are also available. The API supports thinking intensity controls, tool calling, the Responses API, and the Anthropic API. DeepSeek has also released the open-source DeepSeek Harness developer preview, which combines Agent capabilities such as models, tools, skills, sandboxes, sessions, and scheduling through plugins. Personal users can chat for free, while the API is billed by token with peak and off-peak pricing. Experimental models, pricing, and interfaces will continue to change, so check the changelog before use.2129.5All tools with this tag are shown.
