Question

A developer is building a feature that sends product review text to a foundation model on Amazon Bedrock. The downstream application code expects to parse the model's response as structured JSON with fields for 'sentiment' and 'key_topics'. In early tests, the model sometimes returns friendly prose like 'Sure! This review is positive...' which breaks the parser. Without changing the model or writing custom regex cleanup, what is the MOST effective way to get reliably parseable output?

Accepted Answer

Include explicit instructions in the prompt that specify the exact JSON schema and direct the model to respond with only valid JSON and no additional text

Answer

Increase the temperature parameter so the model produces more varied and creative responses

Answer

Fine-tune a new foundation model exclusively on JSON documents before using it for any inference

Answer

Reduce the number of input tokens by truncating each review to its first sentence