One of the most powerful features in AgentSDK v0.4 is the multi-model routing system. This guide will show you how to leverage it effectively.
Why Multi-Model Routing?
Different LLM providers excel at different tasks. Claude is excellent for complex reasoning, GPT-4 handles creative tasks well, and local models can handle simple queries with zero latency.
AgentSDK's Router trait lets you define custom routing logic to automatically select the best model for each task.
Basic Routing
rust
Automatic Fallbacks
Configure fallback chains for resilience:
rust
If Claude is unavailable, the agent automatically tries GPT-4, then falls back to local Llama2.
Check out the routing documentation for more advanced patterns.