- Process large volumes of data with Vertex AI models
- Test your data with different foundation models
- Perform A/B testing with different foundation models
Before You Start
- AI Gateway API key and a Vertex AI provider configured in Model Catalog.
- A GCS bucket in the same region as your model +
aiplatform-service-agentpermission on the file. - (Only for gateway-native batching) A AI Gateway File (
input_file_id). - Familiarity with the Create Batch OpenAPI spec.
The AI Gateway supports two modes on Vertex:
- Provider Batch API (cheapest, completion_window:
24h,48h, etc.) - AI Gateway Batch API (fast, provider-agnostic, completion_window:
immediate)

