This is an excerpt. The full article includes a live interactive schema sandbox where you can switch between 3 real constraint schemas and watch the Gemini inference engine stream constrained tokens in real time. Read the full interactive version →

The Problem: LLMs Are Eloquent, Not Predictable

Language models are optimized to be helpful communicators. This is precisely what makes them powerful interfaces for humans — and extraordinarily fragile integrations for software architectures.

Consider a simple extraction request:

"Extract the product name, price, and availability from the following text and return it as JSON."