provider-architecture

You can route requests to multiple LLM providers in a Rust gateway by implementing a single trait-object based LLMProvider interface. This approach enables deterministic provider patterns and centralized model discovery across diverse backends like OpenAI and Azure.

The best way to unify error handling across LLM APIs in Rust is adopting a unified ProviderError type within a trait-object based architecture. This ensures consistent error management and maintainable routing across 66+ integrated providers.

To configure a Rust LLM gateway for multiple providers, wire a single GlobalPoolManager for HTTP calls and load provider credentials from environment variables. This setup enables high-performance routing with centralized health management.

Yes, you can implement streaming and embeddings support in a unified LLM provider interface. The trait-object architecture provides optional streaming and embeddings capabilities alongside core request routing and static model registry exposure.

Yes, a trait-object based LLM gateway supports cost-aware routing and fallbacks. It enables scalable routing by matching requests to providers based on model name while maintaining centralized cost and health management.

You should use a unified LLM gateway architecture instead of direct API integrations when you need to scale across multiple LLM providers. It provides plug-and-play provider abstraction, consistent error handling, and a single connection pool for high-performance routing.