LLM Router

Selects the optimal LLM model for each task. The single biggest cost lever in multi-agent systems — intelligent routing saves 45-85% while maintaining 95%+ of top-model quality.

When to Use

✅ Use for:

• Deciding which model to call for a specific task
• Assigning models to DAG nodes in agent workflows
• Optimizing LLM API costs across a system
• Building cascading try-cheap-first patterns

❌ NOT for:

• Prompt engineering (use prompt-engineer)
• Model fine-tuning or training
• Comparing model architectures (academic research)