# Ch08-Model-Providers-and-Failover

- [8.1 Model Selection Mechanism](/en/ch08-model-providers-and-failover/8.1-model-selection-mechanism.md)
- [8.2 Auth Profile and Credential Management](/en/ch08-model-providers-and-failover/8.2-authprofile-and-credential-management.md)
- [8.3 Model Catalog and Configuration](/en/ch08-model-providers-and-failover/8.3-model-catalog-and-configuration.md)
- [8.4 Failover Error Handling](/en/ch08-model-providers-and-failover/8.4-failover-error-handling.md)