---
title: "ClikaRT::io::OnnxModelOptions"
sidebar_label: "OnnxModelOptions"
description: "Options governing an OnnxModel's editing and serialization behavior; pass to open / create, they hold for the model's lifetime."
---

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**Header:** `ClikaRT/io/onnx_model.h`

Options governing an [`OnnxModel`](./OnnxModel.md)'s editing and serialization behavior; pass to `open` / `create`, they hold for the model's lifetime.

## Data members

### save\_as\_external\_data {#save_as_external_data}

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`std::optional<bool>` **`save_as_external_data`**

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Where initializer payloads go on `save`: unset = automatic (an external `<stem>_data` sidecar once the payloads exceed the 2 GiB protobuf ceiling); `true` = always external; `false` = never.

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Declared in `ClikaRT/io/onnx_model.h`, line 65

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### deduplicate\_initializers {#deduplicate_initializers}

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`bool` **`deduplicate_initializers`** `= true`

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Deduplicate byte-identical initializers (content-addressed reuse).

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Declared in `ClikaRT/io/onnx_model.h`, line 67

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### deduplicate\_nodes {#deduplicate_nodes}

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`bool` **`deduplicate_nodes`** `= true`

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Deduplicate identical nodes: an added node whose (op type, domain, inputs, attributes) matches an earlier one reuses that node's outputs.

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Declared in `ClikaRT/io/onnx_model.h`, line 70

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### producer\_name {#producer_name}

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`std::string` **`producer_name`** `= "ClikaRT"`

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The [`producer_name`](./OnnxModelOptions.md#producer_name) recorded in a saved model.

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Declared in `ClikaRT/io/onnx_model.h`, line 72

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### ir\_version {#ir_version}

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`std::int64_t` **`ir_version`** `= 0`

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The model IR version a `create`d model carries (a `save`d model is version-valid by construction): \<= 0 = solve it from the opset via the official ONNX version table; a given (opset, IR) pair is validated against that table and an unsupported combination is an error. An `open`ed model keeps its file's own IR version.

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Declared in `ClikaRT/io/onnx_model.h`, line 78

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