Rapid Prototyping with DeepSeek V4 DeepThink Expert Mode
Use DeepThink Expert mode to generate runnable single-file HTML applications.
Enable 'Expert' and 'DeepThink' modes in DeepSeek V4 to generate complete, single-file HTML prototypes for apps and games.
The Scenario
You need to quickly prototype a small utility app or a simple web-based game for a project or presentation.
Before & after
Building a custom tool like a Pomodoro timer or a game usually involves manual coding, debugging, and asset management, taking 2–4 hours for a basic version.
Using DeepSeek V4's 'DeepThink' or 'Expert' mode allows the model to handle reasoning and coding logic in 2–5 minutes, often generating runnable projects instantly.
The Prompt
Act as an expert software engineer. Using DeepThink mode, create a fully functional [DESCRIPTION OF APP, e.g., Pomodoro Timer] in a single HTML file including CSS and JavaScript. Ensure it is bug-free and ready to run in a browser.
DeepSeek V4 features an 'Expert' mode with 'DeepThink' capabilities specifically designed for complex logic and code generation. It can produce 'single HTML' files that are immediately runnable.
Source
Change Log | DeepSeek API Docs"DeepSeek chat by switching between Instant and Expert mode, enabling DeepThink... and generating runnable “single HTML” projects."