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.. _section-capabilities:

Capabilities
============

The following table shows which backends support each major inference
server feature. See :ref:`section-datatypes` for information on
data-types supported by each backend.

+-------------------------+---------+-----------+-------+-------------+-------+
|Feature                  |TensorRT |TensorFlow |Caffe2 |ONNX Runtime |Custom |
+=========================+=========+===========+=======+=============+=======+
|Multi-GPU                |Yes      |Yes        |Yes    |Yes          |Yes    |
+-------------------------+---------+-----------+-------+-------------+-------+
|Multi-Model              |Yes      |Yes        |Yes    |Yes          |Yes    |
+-------------------------+---------+-----------+-------+-------------+-------+
|Batching                 |Yes      |Yes        |Yes    |Yes          |Yes    |
+-------------------------+---------+-----------+-------+-------------+-------+
|Dynamic Batching         |Yes      |Yes        |Yes    |Yes          |Yes    |
+-------------------------+---------+-----------+-------+-------------+-------+
|Sequence Batching        |Yes      |Yes        |Yes    |Yes          |Yes    |
+-------------------------+---------+-----------+-------+-------------+-------+
|Variable-Size Tensors    |         |Yes        |Yes    |Yes          |Yes    |
+-------------------------+---------+-----------+-------+-------------+-------+
|Tensor Reshape           |Yes      |Yes        |Yes    |Yes          |Yes    |
+-------------------------+---------+-----------+-------+-------------+-------+
|String Datatype          |         |Yes        |       |Yes          |Yes    |
+-------------------------+---------+-----------+-------+-------------+-------+
|HTTP API                 |Yes      |Yes        |Yes    |Yes          |Yes    |
+-------------------------+---------+-----------+-------+-------------+-------+
|GRPC API                 |Yes      |Yes        |Yes    |Yes          |Yes    |
+-------------------------+---------+-----------+-------+-------------+-------+
|GRPC Streaming API       |Yes      |Yes        |Yes    |Yes          |Yes    |
+-------------------------+---------+-----------+-------+-------------+-------+