Build a Nightly Model Evaluation Harness for AI Gateways
python
dev.to
Build a Nightly Model Evaluation Harness for AI Gateways Multi-model AI gateways age quickly. A route that looked solid last Monday can become risky after a provider changes a model alias, adjusts a rate card, shifts a context window, adds a tool fee, or returns a different error envelope. The problem is not only cost. It is the combination of quality, latency, cache behavior, billing shape, compliance metadata, and operational rollback. This is especially visible when a team routes