{
  "vertex_fact": {
    "id": "vtx_context_window_parity",
    "model_id": null,
    "model_family": "all models",
    "category": "context window",
    "description": "Context window sizes for a given Claude model generation are the same across the direct API, Bedrock, and Vertex AI -- context length is a property of the model itself, not of the hosting cloud. Vertex-specific request/response payload limits imposed by Google Cloud's own API gateway are a separate, infrastructure-level constraint layered on top, distinct from the model's context window.",
    "source_url": "https://cloud.google.com/vertex-ai/generative-ai/docs/partner-models/use-claude",
    "created_at": "2026-07-02 08:29:41",
    "cite_as": "https://subagentvertex.com/api/vertex-facts/vtx_context_window_parity"
  }
}