ONNX Runtime GenAI C# API

Note: this API is in preview and is subject to change.

• Overview
• Model class
• Tokenizer class
• TokenizerStream class
• GeneratorParams class
• Generator class
• Sequences class

Overview

Model class

Constructor

public Model(string modelPath)

Generate method

public Sequences Generate(GeneratorParams generatorParams)

Tokenizer class

Constructor

public Tokenizer(Model model)

Encode method

public Sequences Encode(string str)

Encode batch method

public Sequences EncodeBatch(string[] strings)

Decode method

public string Decode(ReadOnlySpan<int> sequence)

Decode batch method

public string[] DecodeBatch(Sequences sequences)

Create stream method

public TokenizerStream CreateStream()

TokenizerStream class

Decode method

public string Decode(int token)

GeneratorParams class

Constructor

public GeneratorParams(Model model)

Set search option (double)

public void SetSearchOption(string searchOption, double value)

Set search option (bool) method

public void SetSearchOption(string searchOption, bool value)

Set input ids method

public void SetInputIDs(ReadOnlySpan<int> inputIDs, ulong sequenceLength, ulong batchSize)

Set input sequences method

public void SetInputSequences(Sequences sequences)

Generator class

Constructor

public Generator(Model model, GeneratorParams generatorParams)

Is done method

public bool IsDone()

Compute logits

public void ComputeLogits()

Generate next token method

public void GenerateNextTokenTop()

Sequences class

Num sequences member

public ulong NumSequences { get { return _numSequences; } }

[] operator

public ReadOnlySpan<int> this[ulong sequenceIndex]