The correct answer is GetIterationPerformance.

GetIterationPerformance is the Training API method that returns evaluation metrics for a specific model iteration. It provides iteration accuracy and related statistics such as precision, recall and average precision so you can assess how well that iteration performs on your images.

ExportIteration is used to export a trained iteration for deployment and it does not return evaluation metrics.

GetImagePerformances is not the operation to retrieve overall iteration accuracy. That call, where available, would focus on per image assessment details and not the aggregate metrics requested here.

GetProject returns project metadata such as name and settings and it does not include iteration performance or accuracy metrics.

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