About DeepSeek

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.

Step by step guide to use DeepSeek API Key to chat with AI

I. 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

Sometimes, this provider will require you to add a payment method to your account before you can use your API key to chat with AI. So, to avoid any hiccups, make sure you've got a payment method set up and ready to go!

Important: Keep your API key secure and never share it publicly. Store it safely as you'll need it to connect with TypingMind.

II. Connect Your DeepSeek API Key on TypingMind

Once you have your DeepSeek API key, connecting it to TypingMind to chat with AI is straightforward:

Option 1: Use the built-in Deepseek provider (recommended)

The quickest way. TypingMind already has Deepseek set up, so you only need to add your API key.

Open TypingMind and click "Models" in the left sidebar.
Search for Deepseek.
Click the settings (gear) button next to Deepseek.
Paste your API key and save.

Built-in providers with settings buttons on the TypingMind Models page

Option 2: Add the model manually

If you can't find the provider or model ID in the official list, you can add the model manually:

Open the Models page
Open TypingMind, click "Models" in the left sidebar, then click "Add custom model" in the top right corner.
Enter the model details
Keep "Create Manually" selected and fill in the model details:
Name: deepseek-chat via DeepSeek (or your preferred name)
Model ID: deepseek-chat for example (check DeepSeek model list)
Context Length: Enter the model's context window (e.g., 1000000 for deepseek-chat)
Set up authentication
In the "Authentication" tab, set the connection details:
API Type: OpenAI Chat Completions API
Endpoint URL: https://api.deepseek.com/chat/completions
Authentication Type: API Key via HTTP Header
Header Key: Authorization
Header Value: Bearer <DEEPSEEK_API_KEY>
Add pricing (optional)
Open the "Pricing" tab and enter the model's input, output, and cache prices per 1M tokens so TypingMind can estimate your usage costs.
Check the capabilities
In the "Capabilities" tab, keep "Auto check capabilities on save" on so TypingMind detects supported features like plugins, image input, and thinking, or enable them manually.
Test and save
Click "Test & Save" to verify the connection and add the model.

III. Start Chatting with DeepSeek models

Now you can start chatting with DeepSeek models through TypingMind:

Select DeepSeek models 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

💡 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 models with web search, code execution, and more (How to use plugins)
Upload documents and images directly to chat for AI analysis and discussion (Chat with documents)

IV. Monitor Your AI Usage and Costs

One of the biggest advantages of using API keys with TypingMind is cost transparency and control. Unlike fixed subscriptions, you pay only for what you actually use. Visit your DeepSeek usage dashboard to monitor your API usage and set spending limits.

💡 Cost-saving tips:

Use less expensive models for simple tasks
Keep prompts concise but specific to reduce token usage
Use TypingMind's prompt caching to reduce repeat costs (How to enable prompt caching)
Using RAG (retrieval-augmented generation) for large documents to reduce repeat costs (How to use RAG)

Why TypingMind + DeepSeek?

Chat with DeepSeek models and 200+ other models in one workspace, using your own DeepSeek API key.

Best-in-class UI

TypingMind's interface is far superior to standard chat UIs.

Model flexibility

Switch between DeepSeek models and 200+ models instantly.

Cost control

Pay only for what you use through DeepSeek.

One-time purchase

Buy TypingMind once, use forever with any DeepSeek model.

Data privacy

Your conversations are stored locally by default, not on external servers.

Plugins, MCP, Skills & AI agents

Extend DeepSeek models with web search, image generation, and custom AI agents.

Try TypingMind for free

Frequently Asked Questions

Do I need a subscription to use DeepSeek with TypingMind?

No. With your own DeepSeek API key, you pay only for what you use, with no monthly subscription. TypingMind is also a one-time purchase, not a subscription.

How much does the DeepSeek API cost?

DeepSeek charges per token, and prices vary by model. For example, deepseek-chat costs $0.14/1M input tokens and $0.28/1M output tokens. A typical conversation costs around $0.01-0.10, depending on the model and length.

Which DeepSeek models can I use in TypingMind?

Any model your DeepSeek API key can access. You can switch between DeepSeek models and models from other providers in the same TypingMind chat.

Is my data private when using DeepSeek with TypingMind?

TypingMind stores your conversations locally (in your browser on the web version, on your device in the desktop app). Your messages are sent to DeepSeek with your API key, so check DeepSeek's data policy for how it handles API requests.