Why i stopped using direct API calls for production LLMs
​
i used to think direct api calls were the standard way to connect to llm, but the stability issues with single providers changed my perspective on this. Here is the reality I learned the hard way. When you hardwire your app to a single provider, you do not own your uptime. All you could do is pray their servers stay alive. i got burned too many times by sudden rate limits hitting during peak traffic, or silent api timeouts that broke our entire automation chain. i end up spending hours writing custom retry logic that barely even works.
after that, I routed everything through an llm gateway like zenmux, which made a difference. The automatic failover means if one model drops, traffic just shifts to a backup.