feat(cohere): add Rerank 4.0 model IDs #12348
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Background
Cohere released Rerank 4.0 (December 12, 2025) with two new model variants:
rerank-v4.0-proandrerank-v4.0-fast. TheCohereRerankingModelIdtype currently only includes v3.x models.Cohere docs: https://docs.cohere.com/docs/rerank
Summary
rerank-v4.0-proandrerank-v4.0-fasttoCohereRerankingModelIdtype unionrerank-v4.0-proChecklist
pnpm changesetin the project root)