Starting from scratch, it's recommended to use managed APIs for language models due to operational costs associated with self-hosting. Prioritize error handling over observability by distinguishing between retryable and non-retryable errors. Implement a dead letter queue early on to handle responses that don't fit the expected format, ensuring failures are not silently accepted. Logging a random sample of prompts and responses (1%) separately aids in identifying issues before they become significant problems.
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