DeepSeek

DeepSeek is a high-performance AI company offering competitive language models with excellent reasoning capabilities and cost-effective pricing. It's one of the most popular choices for developers due to its generous free tier and simple setup.

Overview

Provider Type: High-performance language models
Free Tier: ✅ Generous free tier available
Setup Complexity: Low (simple API key setup)
Best For: General purpose, cost-effective solutions
Documentation: DeepSeek API Documentation

Supported Models

Model Name	Capabilities	Context Length	Use Cases
deepseek-chat	General conversation, reasoning	32K tokens	Chat, Q&A, general tasks
deepseek-coder	Code generation, debugging	16K tokens	Programming, code review
deepseek-math	Mathematical reasoning	32K tokens	Math problems, calculations

Key Features

🆓 Generous Free Tier

Free API credits for new users
No credit card required for signup
Reasonable rate limits for development

🚀 High Performance

Fast inference times
Competitive quality with GPT-4
Efficient token usage

💰 Cost-Effective

Competitive pricing
Transparent pricing model
No hidden fees

🔧 Developer Friendly

OpenAI-compatible API
Simple authentication
Good documentation

Setup Guide

Step 1: Create DeepSeek Account

Visit DeepSeek Platform
```
https://platform.deepseek.com
```
1
Sign Up
- Click "Sign Up"
- Use email or third-party login
- Verify your email address
Complete Profile
- Add basic information
- Accept terms of service

Step 2: Get API Key

Access API Keys
- Go to API Keys page
- Click "Create API Key"
Create New Key
- Enter a descriptive name
- Set permissions (usually "All" for general use)
- Click "Create"
Copy and Secure Key
- Copy the API key immediately
- Store it securely (you won't see it again)
- Keep it confidential

Step 3: Test Connection

bash

# Test your API key
curl -X POST https://api.deepseek.com/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer your-deepseek-api-key" \
  -d '{
    "model": "deepseek-chat",
    "messages": [
      {
        "role": "user",
        "content": "Hello, world!"
      }
    ]
  }'

Configuration

Basic Configuration

javascript

// wrangler-config.js
const providerConfig = {
  deepseek: {
    base_url: 'https://api.deepseek.com/v1',
    api_keys: ['your-deepseek-api-key'],
  },
};

const modelProviderConfig = {
  'deepseek-chat': {
    providers: [
      {
        provider: 'deepseek',
        model: 'deepseek-chat',
      },
    ],
  },
};

Multiple API Keys for Higher Limits

javascript

const providerConfig = {
  deepseek: {
    base_url: 'https://api.deepseek.com/v1',
    api_keys: [
      'your-deepseek-key-1',
      'your-deepseek-key-2',
      'your-deepseek-key-3',
    ],
  },
};

Model Aliases

javascript

const modelProviderConfig = {
  // Standard model names
  'deepseek-chat': {
    providers: [
      { provider: 'deepseek', model: 'deepseek-chat' },
    ],
  },
  
  // Custom aliases
  'gpt-4-alternative': {
    providers: [
      { provider: 'deepseek', model: 'deepseek-chat' },
    ],
  },
  
  'coding-assistant': {
    providers: [
      { provider: 'deepseek', model: 'deepseek-coder' },
    ],
  },
  
  'math-solver': {
    providers: [
      { provider: 'deepseek', model: 'deepseek-math' },
    ],
  },
};

Rate Limits and Pricing

Free Tier Limits

Requests: Varies by model
Tokens: Limited monthly allocation
Rate: Requests per minute limits

Paid Tier Benefits

Higher rate limits
More monthly tokens
Priority processing
Better SLA

Cost Comparison

Model	Input Price	Output Price	Context
deepseek-chat	$0.14/1M tokens	$0.28/1M tokens	32K
deepseek-coder	$0.14/1M tokens	$0.28/1M tokens	16K
deepseek-math	$0.14/1M tokens	$0.28/1M tokens	32K

Prices subject to change - check DeepSeek Pricing for current rates

Model Comparison

DeepSeek-Chat

Best for: General conversation, reasoning, creative writing

javascript

// Example usage
const response = await client.chat.completions.create({
  model: "deepseek-chat",
  messages: [
    { role: "system", content: "You are a helpful assistant." },
    { role: "user", content: "Explain quantum computing in simple terms." }
  ],
  temperature: 0.7,
  max_tokens: 1000
});

Strengths:

Excellent reasoning capabilities
Good at following instructions
Competitive with GPT-4 on many tasks
Supports long conversations

DeepSeek-Coder

Best for: Code generation, debugging, code review

javascript

// Example usage
const response = await client.chat.completions.create({
  model: "deepseek-coder",
  messages: [
    { role: "user", content: "Write a Python function to calculate fibonacci numbers." }
  ],
  temperature: 0.1,  // Lower temperature for more deterministic code
  max_tokens: 500
});

Strengths:

Excellent code generation
Supports multiple programming languages
Good at explaining code
Debugging and optimization suggestions

DeepSeek-Math

Best for: Mathematical problems, calculations, proofs

javascript

// Example usage
const response = await client.chat.completions.create({
  model: "deepseek-math",
  messages: [
    { role: "user", content: "Solve this equation: 2x^2 + 5x - 3 = 0" }
  ],
  temperature: 0.1,
  max_tokens: 800
});

Strengths:

Strong mathematical reasoning
Step-by-step problem solving
Supports complex calculations
Good at explaining mathematical concepts

Optimization Tips

Performance Optimization

Choose the Right Model

javascript

// Use specific models for specific tasks
'general-chat': { providers: [{ provider: 'deepseek', model: 'deepseek-chat' }] },
'code-help': { providers: [{ provider: 'deepseek', model: 'deepseek-coder' }] },
'math-help': { providers: [{ provider: 'deepseek', model: 'deepseek-math' }] },

Optimize Parameters

javascript

// For deterministic outputs (code, math)
temperature: 0.1

// For creative outputs
temperature: 0.7-0.9

// For faster responses
max_tokens: 500  // Limit response length

Cost Optimization

Efficient Prompting

javascript

// Be specific and concise
const messages = [
  { role: "user", content: "Summarize this in 3 bullet points: [text]" }
];

System Messages

javascript

// Use system messages to set context once
const messages = [
  { role: "system", content: "You are a code reviewer. Be concise." },
  { role: "user", content: "Review this function: [code]" }
];

Integration Examples

Python Example

python

import openai

# Configure client to use your proxy
client = openai.OpenAI(
    base_url="https://your-proxy.workers.dev/v1",
    api_key="your-service-api-key"
)

# Use DeepSeek models
response = client.chat.completions.create(
    model="deepseek-chat",
    messages=[
        {"role": "user", "content": "Write a Python class for a simple calculator"}
    ],
    temperature=0.1,
    max_tokens=1000
)

print(response.choices[0].message.content)

JavaScript Example

javascript

import OpenAI from 'openai';

const openai = new OpenAI({
  baseURL: 'https://your-proxy.workers.dev/v1',
  apiKey: 'your-service-api-key',
});

// Streaming response
const stream = await openai.chat.completions.create({
  model: 'deepseek-chat',
  messages: [{ role: 'user', content: 'Explain machine learning' }],
  stream: true,
});

for await (const chunk of stream) {
  process.stdout.write(chunk.choices[0]?.delta?.content || '');
}

curl Example

bash

# Basic request
curl -X POST https://your-proxy.workers.dev/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer your-service-api-key" \
  -d '{
    "model": "deepseek-coder",
    "messages": [
      {
        "role": "user",
        "content": "Write a function to reverse a string in JavaScript"
      }
    ],
    "temperature": 0.1,
    "max_tokens": 300
  }'

Best Practices

Model Selection

General tasks: Use deepseek-chat
Programming: Use deepseek-coder
Mathematics: Use deepseek-math
Mixed tasks: Configure multiple model aliases

Parameter Tuning

Creative writing: temperature 0.7-0.9
Code generation: temperature 0.1-0.3
Factual responses: temperature 0.1-0.5

Rate Limit Management

javascript

// Use multiple keys to increase limits
const providerConfig = {
  deepseek: {
    base_url: 'https://api.deepseek.com/v1',
    api_keys: [
      'key-1-for-general-use',
      'key-2-for-burst-traffic',
      'key-3-for-backup',
    ],
  },
};

Troubleshooting

Common Issues

❌ "Invalid API key" error

Solution: Check your API key in DeepSeek platform
1. Go to https://platform.deepseek.com/api_keys
2. Verify the key exists and is active
3. Check for typos in your configuration

❌ "Rate limit exceeded" error

Solution: Add multiple API keys or wait for reset
1. Create additional API keys in DeepSeek platform
2. Add them to your configuration
3. Consider upgrading to paid tier

❌ "Model not found" error

Solution: Check model name spelling
Correct names: "deepseek-chat", "deepseek-coder", "deepseek-math"

❌ Slow responses

Solution: Optimize your requests
1. Reduce max_tokens for faster responses
2. Use more specific prompts
3. Consider using multiple providers for load balancing

Monitoring Usage

Track Your Usage

Visit DeepSeek Usage Dashboard
Monitor token consumption
Set up usage alerts
Review billing information

Usage Optimization

javascript

// Log requests for analysis
const providerConfig = {
  deepseek: {
    base_url: 'https://api.deepseek.com/v1',
    api_keys: ['your-key'],
    headers: {
      'X-Request-ID': 'unique-request-id', // For tracking
    },
  },
};

Comparison with Other Providers

Feature	DeepSeek	Azure OpenAI	OpenAI
Free Tier	✅ Yes	❌ No	✅ Limited
Setup Complexity	🟢 Low	🔴 High	🟡 Medium
Performance	🟢 High	🟢 High	🟢 High
Cost	🟢 Low	🟡 Medium	🔴 High
Reliability	🟡 Good	🟢 Excellent	🟢 Excellent

Next Steps

Multi-Provider Setup - Combine DeepSeek with other providers
Load Balancing - Optimize performance across providers
Azure OpenAI - Add enterprise-grade backup
Configuration Guide - Advanced configuration options

DeepSeek ​

Overview ​

Supported Models ​

Key Features ​

🆓 Generous Free Tier ​

🚀 High Performance ​

💰 Cost-Effective ​

🔧 Developer Friendly ​

Setup Guide ​

Step 1: Create DeepSeek Account ​

Step 2: Get API Key ​

Step 3: Test Connection ​

Configuration ​

Basic Configuration ​

Multiple API Keys for Higher Limits ​

Model Aliases ​

Rate Limits and Pricing ​

Free Tier Limits ​

Paid Tier Benefits ​

Cost Comparison ​

Model Comparison ​

DeepSeek-Chat ​

DeepSeek-Coder ​

DeepSeek-Math ​

Optimization Tips ​

Performance Optimization ​

Cost Optimization ​

Integration Examples ​

Python Example ​

JavaScript Example ​

curl Example ​

Best Practices ​

Model Selection ​

Parameter Tuning ​

Rate Limit Management ​

Troubleshooting ​

Common Issues ​

Monitoring Usage ​

Track Your Usage ​

Usage Optimization ​

Comparison with Other Providers ​

Next Steps ​

External Resources ​

DeepSeek

Overview

Supported Models

Key Features

🆓 Generous Free Tier

🚀 High Performance

💰 Cost-Effective

🔧 Developer Friendly

Setup Guide

Step 1: Create DeepSeek Account

Step 2: Get API Key

Step 3: Test Connection

Configuration

Basic Configuration

Multiple API Keys for Higher Limits

Model Aliases

Rate Limits and Pricing

Free Tier Limits

Paid Tier Benefits

Cost Comparison

Model Comparison

DeepSeek-Chat

DeepSeek-Coder

DeepSeek-Math

Optimization Tips

Performance Optimization

Cost Optimization

Integration Examples

Python Example

JavaScript Example

curl Example

Best Practices

Model Selection

Parameter Tuning

Rate Limit Management

Troubleshooting

Common Issues

Monitoring Usage

Track Your Usage

Usage Optimization

Comparison with Other Providers

Next Steps

External Resources