AI agents

Model selection and fallback chains

• A Canary Process for Model Version Upgrades
• Choosing the Model for a Tool-Using Agent: A Comparison Method
• Detecting Model Drift When Your Provider Updates a Model
• Fallback Hops for a Routed Call: Order, Triggers and Cost
• Handling a Provider Model Retirement in Code, Config and Tests
• Pinning Model Aliases in CI: A Suite That Fails on Drift
• Pricing a Fallback Tier: Cost per Overrun and Break-Even Volume
• When an Alias Points to a Deprecated Model: A Failover Test