Here is How to Get DeepSeek R1 API for Free

You can access the DeepSeek API for free through OpenRouter, a platform that simplifies AI integration. This blog post will guide you through the process, explain its uses, and highlight the benefits of using DeepSeek for AI-driven applications.
What is DeepSeek?
DeepSeek is a family of advanced AI models developed by DeepSeek AI. Models like DeepSeek R1 (Reasoner) are designed for complex tasks like coding, math, and logical reasoning. It's an open-source model licensed under MIT, meaning developers can use, modify, and even commercialize it freely.
However, running these massive models locally requires immense computational power. This is where OpenRouter comes in, offering a free and accessible way to tap into DeepSeek’s capabilities without the hardware headache.
Why Use the DeepSeek API?
High Performance
DeepSeek R1 matches or surpasses proprietary models in reasoning, coding, and language tasks, scoring 92.8% on the MATH-500 benchmark.
Large Context Window
With up to 131,072 tokens, DeepSeek can handle extensive inputs, making it ideal for processing long documents or complex conversations.
Cost-Free Access
Through OpenRouter, you can use DeepSeek R1 for free, with no input or output token costs for the free tier, perfect for testing and prototyping.
Practical Uses of the DeepSeek API
The DeepSeek API is versatile and can power a wide range of applications. Here are some practical uses:
1. Intelligent Chatbots
Build smart chatbots for customer support or e-commerce.
2. Content Generation
Generate high-quality blog posts, social media content, or marketing copy.
3. Code Assistance
DeepSeek R1 excels at writing scripts, debugging code, and generating unit tests.
4. Research and Analysis
Analyze large datasets, summarize academic papers, or extract key insights.
Step-by-Step Guide to Accessing DeepSeek API for Free
Let’s walk through the process of getting your free DeepSeek API key using OpenRouter.
Create an OpenRouter Account
First, head to openrouter.ai and sign up. The process is quick, and you can use a Google or GitHub account.

Select the DeepSeek Model
Generate & Use Your API Key
In your OpenRouter dashboard, navigate to the Keys section and click "+ Create Key". Give it a name, and your key will be generated.
from openai import OpenAI
# Create the client, pointing it to OpenRouter
client = OpenAI(
base_url="https://openrouter.ai/api/v1",
api_key="YOUR_OPENROUTER_API_KEY", # Paste your key here
)
# Send the request to the free DeepSeek R1 model
completion = client.chat.completions.create(
model="deepseek/deepseek-r1:free",
messages=[
{ "role": "user", "content": "Explain quantum entanglement simply." },
],
)
print(completion.choices[0].message.content)
Important Note
Copy your real API key and save it somewhere secure. For security reasons, OpenRouter will not show you the full key again.
The "Catch": A Quick Word on Latency
So, you have a free, unlimited API key to a world-class model. The only trade-off is a latency of about two seconds. This means there's a short delay before you get a response. Here's what that means for your projects.
✅ Ideal Use Cases
- Content generators (blogs, emails, social media)
- Text summarizers and report builders
- Code explanation and generation tools
- Offline data processing and analysis
❌ Less Ideal Use Cases
- Real-time customer service chatbots
- Interactive gaming or live simulations
- Any application where instant feedback is critical
Conclusion
Accessing the DeepSeek API for free through OpenRouter is a powerful opportunity to leverage cutting-edge AI. By following the steps outlined, you can start building AI-driven applications today. DeepSeek’s high performance, large context window, and open-source nature make it ideal for a wide range of projects.