Michael-RZ-Berri 4f823cedac Add supported providers to prompt caching doc (#26124) ...

* Add supported providers to prompt caching doc

* Move Z.ai / GLM to cache_control marker list

* Mark xAI models as supporting prompt caching

* Narrow xAI prompt caching flag to models with documented cache pricing

* Add prompt caching flag to grok-4, grok-4-0709, grok-4-latest

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Co-authored-by: Michael Riad Zaky <michaelr@Michaels-MacBook-Air.local>

2026-04-20 15:25:21 -07:00

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Add supported providers to prompt caching doc (#26124)

2026-04-20 15:25:21 -07:00