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Ann NgHow to use DeepSeek V4 Pro from DeepSeek with API Key on TypingMind
Learn how to access and use DeepSeek V4 Pro with your DeepSeek API key through TypingMind. Get started with this powerful AI model in minutes.
DeepSeek AI is a Chinese open-source AI company offering advanced large language models with the latest DeepSeek-V3.1 (released August 2025) combining both general-purpose and reasoning capabilities in a hybrid architecture. Key models include DeepSeek-V3.1 (flagship with 128K token context window, 43% improved multi-step reasoning, and dual thinking/non-thinking modes), DeepSeek-R1 (specialized reasoning model with chain-of-thought processing matching OpenAI o1 performance), and DeepSeek-VL2 (state-of-the-art vision-language model).
Features include hybrid Mixture-of-Experts (MoE) architecture, extended context handling up to 1M tokens, enhanced tool calling for agentic workflows, 20-50% faster inference than previous versions, JSON output support, and fully open-source with MIT licensing. Access the platform at deepseek.ai with API documentation at api-docs.deepseek.com.
Official Documentation: https://api-docs.deepseek.com/quick_start/pricing
DeepSeek V4 Pro Overview
| Model Name | DeepSeek V4 Pro |
| Provider | DeepSeek |
| Model ID | deepseek-v4-pro |
| Release Date | Apr 24, 2026 |
| Last Updated | Apr 24, 2026 |
| Knowledge Cutoff | 2025-05 |
| Context Window | 1,000,000 tokens |
| Max Output | 384,000 tokens |
| Pricing /1M tokens | $1.74 input $3.48 output $0.145 cache read |
| Input Modalities | text |
| Output Modalities | text |
| Capabilities | ReasoningTool CallingTemperature ControlOpen Weights |
Complete Setup Guide
Get Your DeepSeek API Key
First, you'll need to obtain an API key from DeepSeek. This key allows you to access their AI models directly and pay only for what you use.
- Visit DeepSeek's API console
- Sign up or log in to your account
- Navigate to the API keys section
- Generate a new API key (copy it immediately as some providers only show it once)
- Save your API key in a secure password manager or encrypted note
⚠️ Important: Keep your API key secure and never share it publicly. Store it safely as you'll need it to connect with TypingMind.
Configure TypingMind with DeepSeek API Key
- Open TypingMind in your browser
- Click the "Settings" icon (gear symbol)
- Navigate to "Models" section
- Click "Add Custom Model"
- Fill in the model information:Name:
deepseek-v4-pro via DeepSeek(or your preferred name)Endpoint:https://api.deepseek.com/chat/completionsModel ID:deepseek-v4-proContext Length: Enter the model's context window (e.g., 1000000 for deepseek-v4-pro)
deepseek-v4-prohttps://api.deepseek.com/chat/completionsdeepseek-v4-pro via DeepSeekhttps://www.typingmind.com/model-logo.webp1000000 - Add custom headers by clicking "Add Custom Headers" in the Advanced Settings section:Authorization:
Bearer <DEEPSEEK_API_KEY>:X-Title:typingmind.comHTTP-Referer:https://www.typingmind.com - Enable "Support Plugins (via OpenAI Functions)" if the model supports the "functions" or "tool_calls" parameter, or enable "Support OpenAI Vision" if the model supports vision.
- Click "Test" to verify the configuration
- If you see "Nice, the endpoint is working!", click "Add Model"
Start chatting with DeepSeek V4 Pro
Now you can start chatting with DeepSeek V4 Pro through TypingMind:
- Select DeepSeek V4 Pro from the model dropdown menu
- Start typing your message in the chat input
- Enjoy faster responses and better features than the official interface
- Switch between different AI models as needed
deepseek-v4-pro💡 Pro tips for better results:
- Use specific, detailed prompts for better responses (How to use Prompt Library)
- Create AI agents with custom instructions for repeated tasks (How to create AI Agents)
- Use plugins to extend DeepSeek V4 Pro capabilities (How to use plugins)
Frequently Asked Questions
Do I need a subscription to use DeepSeek V4 Pro?
No! With DeepSeek API, you pay only for what you use with no monthly subscription. Add credits to your DeepSeek account and pay as you go. TypingMind is also a one-time purchase, not a subscription.
How much will it cost to use DeepSeek V4 Pro?
DeepSeek V4 Pro costs $1.74/1M input tokens and $3.48/1M output tokens. A typical conversation might cost $0.01-0.10 depending on length.
Can I use other models besides DeepSeek V4 Pro?
Yes! With DeepSeek API + TypingMind, you can access all DeepSeek models. Switch between them instantly in TypingMind.
Is my data private and secure?
Yes! TypingMind stores conversations locally (web version in browser, desktop version on your device). DeepSeek handles API calls securely. Check DeepSeek's data policy for specifics.
Can I use DeepSeek V4 Pro for commercial projects?
Yes! Check DeepSeek's terms of service for specific commercial use policies. TypingMind supports commercial use.
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