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1616## Inference geo
1717
1818<Note>
19 For how zero data retention (ZDR) applies to this feature, see [API and data retention](https://platform.claude.com/docs/en/manage-claude/api-and-data-retention).
19 To learn how zero data retention (ZDR) applies to this feature, see [API and data retention](https://platform.claude.com/docs/en/manage-claude/api-and-data-retention).
2020</Note>
2121
2222The `inference_geo` parameter controls where model inference runs for a specific API request. Add it to any `POST /v1/messages` call.