Skip to main content
Configure Qwen Code to use Adaptive’s intelligent routing infrastructure that automatically selects the optimal AI model for each coding task.
Intelligent model selection with automatic routing. Works as a drop-in replacement for Qwen Code’s API backend, providing access to multiple AI providers (Claude, GPT-4, etc.) with cost optimization and intelligent routing built-in.

Benefits of Using Qwen Code with Adaptive

When you integrate Qwen Code with Adaptive, you unlock powerful capabilities:
  • Multi-Provider Access: Access Claude, GPT-4, Gemini, and other providers through a single interface
  • Intelligent Model Selection: Adaptive automatically routes requests to the optimal model based on task complexity, language, and context
  • Cost Optimization: Save 60-80% on API costs through intelligent routing and model selection
  • Higher Reliability: Automatic fallbacks across providers ensure consistent responses
  • Enhanced Performance: Load balancing and circuit breakers for optimal throughput
  • Usage Analytics: Monitor model usage, costs, and performance in real-time

Get Your Adaptive API Key

Visit llmadaptive.uk to create an account and generate your API key.

Quick Setup

Run Automated Installer

curl -fsSL https://raw.githubusercontent.com/Egham-7/adaptive/main/scripts/installers/qwen-code.sh | bash
The installer will automatically:
  • Install Qwen Code if not present (via npm)
  • Configure OpenAI-compatible environment variables for Adaptive
  • Add configuration to your shell profile (~/.bashrc, ~/.zshrc, etc.)
  • Verify the installation

Verify Configuration

qwen --version
echo $OPENAI_API_KEY
echo $OPENAI_BASE_URL

Start Using

qwen
# Or start with a prompt
qwen "help me refactor this function"
Adaptive will automatically route your request to the optimal model for coding tasks.

Manual Installation

If you prefer to set up Qwen Code manually or need more control over the installation process:

Step 1: Install Qwen Code

npm install -g @qwen-code/qwen-code@latest
Qwen Code requires Node.js 20 or higher. Check your version with node --version.

Step 2: Configure Environment Variables

Qwen Code uses OpenAI-compatible API configuration:
# Qwen Code with Adaptive LLM API Configuration
export OPENAI_API_KEY="your-adaptive-api-key-here"  # qwen-code
export OPENAI_BASE_URL="https://www.llmadaptive.uk/api/v1"  # qwen-code
export OPENAI_MODEL="intelligent-routing"  # qwen-code - for automatic model selection

Step 3: Apply Configuration

# For Bash/Zsh
source ~/.bashrc  # or ~/.zshrc

# For Fish
source ~/.config/fish/config.fish

# Or restart your terminal

Step 4: Verify Installation

qwen --version
qwen "test connection"

Alternative Setup Methods

export ADAPTIVE_API_KEY='your-api-key-here'
curl -fsSL https://raw.githubusercontent.com/Egham-7/adaptive/main/scripts/installers/qwen-code.sh | bash
# The installer will automatically configure your shell

Advanced Configuration

Model Selection with Adaptive

Configure which provider and model to use by default:
# Let Adaptive choose the optimal model for each task
export OPENAI_MODEL='intelligent-routing'
qwen "complex algorithm optimization"

Intelligent Routing

When OPENAI_MODEL is set to "intelligent-routing" or empty, Adaptive intelligently selects the best model for each task based on:
  • Task Complexity: Analyzes prompt complexity to select the optimal model
  • Language & Framework: Matches model strengths to programming languages
  • Code Context: Understands codebase size and complexity
  • Performance Requirements: Balances speed and quality
  • Cost Optimization: Automatically minimizes costs while maintaining quality
  • Provider Availability: Automatic fallback if a provider is unavailable

Available Model Providers

ProviderModelsBest ForSpeedCost
Qwenqwen-plus, qwen-turboCode generation, Asian languagesFastLow
AnthropicClaude Sonnet 4Complex reasoning, refactoringMediumMedium
OpenAIGPT-4, GPT-4 TurboGeneral coding, documentationMediumHigher
GoogleGemini Pro, FlashCode review, analysisFastMedium
DeepSeekdeepseek-coderCode completion, debuggingFastLow

Usage Examples

Code Understanding & Editing

cd your-project/
qwen

# Architecture analysis
> Describe the main pieces of this system's architecture
> What are the key dependencies and how do they interact?
> Find all API endpoints and their authentication methods

Workflow Automation

# Analyze git commits from the last 7 days, grouped by feature
> git log --since="7 days ago" --pretty=format:"%h - %s" --graph

# Create a changelog from recent commits
> Generate a CHANGELOG.md from commits since last release

# Find all TODO comments and create GitHub issues
> Find all TODO comments and create corresponding issues

Session Management

Control your token usage with configurable session limits:
# Create or edit .qwen/settings.json in your home directory
{
  "sessionTokenLimit": 32000
}
Session token limit applies to a single conversation, not cumulative API calls.

Vision Model Support

Qwen Code includes automatic vision model detection for image analysis:
# Include images in your queries
qwen "Analyze this UI screenshot and suggest improvements" --image screenshot.png

# Vision model will automatically switch when images are detected

# Configure behavior in .qwen/settings.json
{
  "experimental": {
    "vlmSwitchMode": "once" // "once", "session", "persist", or omit for interactive
  }
}

Integration with Adaptive Features

Cost Optimization

Adaptive automatically routes your requests to the most cost-effective model that meets quality requirements:Before Adaptive: Fixed model costs
  • GPT-4: 0.03/1Ktokens(input)+0.03/1K tokens (input) + 0.06/1K tokens (output)
  • Claude Sonnet: 0.003/1Ktokens(input)+0.003/1K tokens (input) + 0.015/1K tokens (output)
With Adaptive: Intelligent routing saves 60-80%
  • Simple queries → Qwen Turbo: $0.0008/1K tokens
  • Moderate tasks → Qwen Plus: $0.002/1K tokens
  • Complex reasoning → Claude Sonnet: $0.003/1K tokens
Example Savings:
  • 1M tokens/month without Adaptive: ~$45
  • 1M tokens/month with Adaptive: ~$12
  • Monthly savings: $33 (73% reduction)
Adaptive caches similar requests to reduce API calls:How it works:
  • Semantic similarity detection for code queries
  • Automatic cache hits for similar questions
  • Configurable cache TTL and similarity threshold
Cost Impact:
  • Cache hit rate: 30-40% for typical dev workflows
  • Additional savings: 20-30% on top of intelligent routing
  • Zero latency for cached responses
Distribute requests across providers for optimal performance:Benefits:
  • Higher rate limits through multi-provider distribution
  • Automatic failover if one provider is down
  • Geographic routing for lower latency
  • Cost-optimized provider selection
Performance Impact:
  • 99.9% uptime with automatic failover
  • 50% higher effective rate limits
  • 20-30% latency reduction with geographic routing

Troubleshooting

Problem: Qwen Code installation failsSolutions:
  • Ensure Node.js 20+ is installed: node --version
  • Install Node.js if needed:
    # Using nvm (recommended)
    curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.3/install.sh | bash
    nvm install 22
    
  • Check npm permissions: npm config get prefix
  • Try with sudo (not recommended): sudo npm install -g @qwen-code/qwen-code
  • Clear npm cache: npm cache clean --force
Problem: “Unauthorized” or “Invalid API key” errorsSolutions:
  1. Verify your API key at llmadaptive.uk/dashboard
  2. Check environment variables are set:
    echo $OPENAI_API_KEY
    echo $OPENAI_BASE_URL
    echo $OPENAI_MODEL
    
  3. Ensure variables are exported in your shell config:
    # Bash/Zsh
    source ~/.bashrc  # or ~/.zshrc
    
    # Fish
    source ~/.config/fish/config.fish
    
  4. Restart your terminal if changes were made to shell config
  5. Verify the base URL is correct: https://www.llmadaptive.uk/api/v1
  6. Check for the # qwen-code comment to ensure correct environment variables
Problem: Cannot connect to Adaptive APISolutions:
  • Check internet connectivity
  • Verify base URL is correct: echo $OPENAI_BASE_URL
  • Test API directly:
    curl -X POST https://www.llmadaptive.uk/api/v1/chat/completions \
      -H "Authorization: Bearer $OPENAI_API_KEY" \
      -H "Content-Type: application/json" \
      -d '{
        "model": "intelligent-routing",
        "messages": [{"role": "user", "content": "Hello"}]
      }'
    
  • Check if your network/firewall blocks the API endpoint
  • Try using a different network or VPN
Problem: Requests not routing to expected modelsSolutions:
  1. Check current model configuration:
    echo $OPENAI_MODEL
    
  2. Use intelligent routing for automatic selection:
    export OPENAI_MODEL='intelligent-routing'
    
  3. Verify provider:model format:
    export OPENAI_MODEL='qwen:qwen-plus'  # Correct
    export OPENAI_MODEL='qwen-plus'       # Incorrect
    
  4. Check Adaptive dashboard for routing logs and model availability
  5. Review model names match supported providers
Problem: Slow response times or timeoutsSolutions:
  • Check Adaptive dashboard for provider status
  • Verify rate limits aren’t exceeded
  • Use faster models for simple tasks:
    export OPENAI_MODEL='qwen:qwen-turbo'
    
  • Enable semantic caching for repeated queries
  • Check your internet connection speed
  • Review model selection—Qwen Turbo and Flash models are faster
  • Consider load balancing configuration in Adaptive dashboard
Problem: Hitting token limits in long sessionsSolutions:
  • Configure higher session limits in .qwen/settings.json:
    {
      "sessionTokenLimit": 64000
    }
    
  • Use session compression to reduce token usage:
    /compress
    
  • Clear conversation history and start fresh:
    /clear
    
  • Monitor token usage:
    /stats
    
  • Break large tasks into smaller sessions

Uninstallation

If you need to remove Qwen Code or revert configuration:
1

Remove Qwen Code

npm uninstall -g @qwen-code/qwen-code
2

Remove Environment Variables

Edit your shell config file and remove these lines:
# Qwen Code with Adaptive LLM API Configuration
export OPENAI_API_KEY="..." # qwen-code
export OPENAI_BASE_URL="..." # qwen-code
export OPENAI_MODEL="..." # qwen-code
3

Reload Shell Configuration

source ~/.bashrc # or ~/.zshrc or ~/.config/fish/config.fish

Next Steps


Was this page helpful? Contact us at info@llmadaptive.uk for feedback or assistance with your Qwen Code integration.
I