Language Model (LLM) Configuration
The LLM settings page allows you to configure the AI capabilities of your ChatNexus chatbot by selecting from multiple leading AI providers and their respective models.

Available Platforms
ChatNexus supports three major AI platforms:
OpenAI
Advanced language models with various capabilities and price points:
- GPT-4 Models
gpt-4
: Standard GPT-4 modelgpt-4-turbo
: Enhanced speed and capabilitiesgpt-4o
: Optimized GPT-4 variantgpt-4o-mini
: Lightweight GPT-4 variant- O1 Series
o1
: Standard O1 modelo1-mini
: Compact O1 varianto1-preview
: Preview version with latest features
Google Gemini
Next-generation AI models from Google:
gemini-1.5-pro
: Full-featured professional modelgemini-1.5-flash
: High-speed variant optimized for quick responses
Anthropic Claude
Sophisticated AI models known for thoughtful responses:
claude-3-5-sonnet-20241022
: Balanced performance and capabilitiesclaude-3-opus-20240229
: Most capable Claude modelclaude-3-5-haiku-20241022
: Fast, efficient variant
Model Selection Guide
Use Case Recommendations
- Customer Support
- Primary:
claude-3-5-sonnet
orgpt-4o-mini
- Alternative:
gemini-1.5-flash
for quick responses
- Complex Analysis
- Primary:
claude-3-opus
orgpt-4
- Alternative:
gemini-1.5-pro
for technical content
- High-Volume Operations
- Primary:
claude-3-5-haiku
oro1-mini
- Alternative:
gemini-1.5-flash
for speed
- General Purpose
- Primary:
gpt-4o
orgemini-1.5-pro
- Alternative:
claude-3-5-sonnet
for balanced performance
API Configuration
API Key Options
Users have two options when configuring API keys:
- Use Default Models - ChatNexus provides built-in access to selected AI models without requiring an API key.
- Use Your Own API Key - Users can enter their own API key to access models directly from OpenAI, Google Gemini, or Anthropic Claude.
Platform-Specific Setup
- OpenAI
- Requires OpenAI API key (if using your own key)
- Format:
sk-...
- Obtain from OpenAI dashboard
- Google Gemini
- Requires Google Cloud API key (if using your own key)
- Format: Standard Google Cloud key
- Set up through Google Cloud Console
- Anthropic Claude
- Requires Anthropic API key (if using your own key)
- Format:
sk-ant-...
- Available from Anthropic dashboard
Best Practices
- Model Selection
- Test multiple models for your use case
- Consider response time requirements
- Balance cost vs. capability
- Monitor performance metrics
- API Management
- Maintain separate keys for each platform
- Implement proper error handling
- Set up usage monitoring
- Create fallback strategies
- Performance Optimization
- Cache common responses
- Use efficient prompt engineering
- Implement retry mechanisms
- Monitor token usage
Troubleshooting
Common issues and solutions:
- Connection Issues
- Verify API keys for selected platform
- Check network connectivity
- Confirm service status
- Review rate limits
- Performance Problems
- Consider switching to faster models
- Optimize prompt length
- Check for token limits
- Monitor response times
Remember to click "Save" after making any changes to your LLM configuration to ensure settings are properly applied.
Support Resources
Need help choosing the right model?
- Contact our support team
- Review model documentation
- Access integration guides
- Request a consultation
Keep your configuration updated as new models and features become available from our supported AI providers.