# DeepSeek Chat, search for information, and build AI applications with reasoning and image-capable models. - Findings24: - Website: - Pricing: Freemium - Categories: AI Chatbot, LLM API ## What is DeepSeek? DeepSeek combines an AI assistant with a developer model API. Use its browser chat or mobile app to ask questions, work through problems, and search for information. Developers can integrate DeepSeek models into applications through OpenAI-compatible or Anthropic-compatible interfaces. DeepSeek-V4.1-Flash also accepts images for tasks such as describing pictures, reading screenshot text, and interpreting charts. ## What can DeepSeek do? ### AI chat and search Ask follow-up questions and use intelligent search in the DeepSeek assistant. ### Optional reasoning Choose thinking or non-thinking modes when calling models through the API. ### Image understanding Send images to the Flash API to describe their contents, read text, or analyze charts. ### Application integration Connect applications using OpenAI-compatible or Anthropic-compatible API formats and an API key. ### Structured and tool-based workflows Use JSON output and tool calls to connect model responses with application logic. ## Use Cases ### Explore a question Discuss a topic with the assistant, ask follow-up questions, and search for relevant information. ### Interpret visual material Build a workflow that asks the Flash model about screenshots, diagrams, or charts supplied as images. ### Add AI to an application Combine reasoning, structured responses, and tool calls with your application’s own data and functions. ## Frequently Asked Questions ### How can I use DeepSeek? Use the browser chat or the official iOS and Android assistant. Developers can create an API key to integrate model calls into their own applications. ### Is the mobile assistant free? The official DeepSeek mobile assistant offers free interaction with its AI models. Developer API usage is billed separately by token consumption. ### What does the Flash API cost? For deepseek-flash, off-peak rates per one million tokens are $0.003 for cached input, $0.15 for uncached input, and $0.60 for output. Peak rates are $0.006, $0.30, and $1.20 respectively. Peak hours are 01:00–04:00 and 06:00–10:00 UTC, Monday through Friday, excluding Chinese public holidays; all other hours are off-peak. Rates apply to API usage and depend on the selected model and cache status. ### Which model supports image input? DeepSeek-V4.1-Flash, called through the deepseek-flash API model name, accepts images alongside text. It can describe pictures, read screenshot text, and analyze charts.