:nosearch:

.. _op_ai_onnx_Sum-1:

Sum - version 1
===============

This page documents version **1** of operator **Sum**. See :doc:`Sum` for the latest version (since version 13).

- **Domain**: ``ai.onnx``
- **Since version**: 1

Element-wise sum of each of the input tensors. All inputs and outputs must
have the same shape and data type.

**Inputs**

- **data_0** (*T*): List of tensors for Sum.

**Outputs**

- **sum** (*T*): Output tensor. Same dimension as inputs.

**Attributes**

- **consumed_inputs** (*int[]*): legacy optimization attribute.

**Type Constraints**

- **T**: Constrain input and output types to float tensors.
  Allowed types: tensor(double), tensor(float), tensor(float16).