DeepSeek V4 Documentation Overview

This documentation area is designed as an operating manual, not a generic marketing page.

Recommended reading order:

1. Quick Start
2. Prompt Patterns
3. API Workflows

What this documentation answers

• Where to start: the difference between the official website, chat entry, API docs, and raw endpoint
• How to prompt well: how to write the goal, context, limits, and output format clearly
• How to integrate: what to do with deepseek-chat, deepseek-reasoner, Thinking, Tool Calls, and JSON output
• How to operationalize it: how to turn one-off chats into reusable team workflows

Core principles

1. Confirm the official entry first

If you want to test the experience quickly, start from the official site and chat entry.
If you want to build integrations, start from the API documentation.

2. Define the output before writing the prompt

The biggest performance difference usually comes from clarity:

• Do you want a summary, table, FAQ, code patch, or JSON?
• Is your context complete?
• Did you ask the model to expose assumptions and missing information?

3. Put the model into a workflow

The most stable usage pattern usually looks like this:

1. Collect the right material
2. Structure the input
3. Constrain the output
4. Run a second-pass review
5. Keep a human check

Continue here

• Quick Start: best for first-time users
• Prompt Patterns: best for content, product, coding, and knowledge tasks
• API Workflows: best for developers integrating DeepSeek into products

Official resources

• Website: deepseek.com
• API Docs: api-docs.deepseek.com
• API Endpoint: api.deepseek.com