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Vercel's AI Gateway now supports routing rules that allow developers to dynamically rewrite model routes (e.g., from retired models like Claude Fable-5 to Claude Opus-5) without code changes, ensuring production workloads remain resilient.
The author explores combining relational modeling with APL-style array languages using constraint logic and equational rewrite rules, discussing how properties can be defined as bidirectional deductions rather than simple assignments.