TiktokenSharp 1.0.1

.NET Standard 2.1 This package targets .NET Standard 2.1. The package is compatible with this framework or higher.
There is a newer version of this package available.
See the version list below for details. 
dotnet add package TiktokenSharp --version 1.0.1
                    


                    

                
NuGet\Install-Package TiktokenSharp -Version 1.0.1
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="TiktokenSharp" Version="1.0.1" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="TiktokenSharp" Version="1.0.1" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="TiktokenSharp" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add TiktokenSharp --version 1.0.1
                    


                    

                
#r "nuget: TiktokenSharp, 1.0.1"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#:package TiktokenSharp@1.0.1
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=TiktokenSharp&version=1.0.1
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=TiktokenSharp&version=1.0.1
                    


                            Install as a Cake Tool

TiktokenSharp

Due to the lack of a C# version of cl100k_base encoding (gpt-3.5-turbo), I have implemented a basic solution with encoding and decoding methods based on the official Rust implementation.

Currently, only cl100k_base has been implemented. Other encodings will be added in future submissions. If you encounter any issues or have questions, please feel free to submit them on the lssues."

Update

1.0.1 20230313

  • p50k_base encoding algorithm that supports the text-davinci-003 model.

Start

using TiktokenSharp;
TikToken tikToken = TikToken.EncodingForModel("gpt-3.5-turbo");
var i = tikToken.Encode("hello world"); //[15339, 1917]
var d = tikToken.Decode(i); //hello world
Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 was computed.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 was computed.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed.  net9.0 was computed.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 was computed.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
.NET Core netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard2.1 is compatible. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen60 was computed. 
Xamarin.iOS xamarinios was computed. 
Xamarin.Mac xamarinmac was computed. 
Xamarin.TVOS xamarintvos was computed. 
Xamarin.WatchOS xamarinwatchos was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

  • .NETStandard 2.1

    • No dependencies.

NuGet packages (5)

Showing the top 5 NuGet packages that depend on TiktokenSharp:

Package Downloads
Mythosia.AI

## What's New in v6.7.0 ### Fixed - The message-count sliding window (MaxMessageCount) can no longer drop the anchoring user message. Long agentic runs (RunAgentAsync/RunAgentStreamAsync) append two messages per tool round and could push the originating user query out of the window, producing requests with no user message that some OpenAI-compatible servers reject (e.g. vLLM/Qwen 400 "No user query found in messages"). The window now re-anchors the most recent cut-off user message whenever the sliced window has no user turn. ### Deprecated - AIService.MaxMessageCount is now [Obsolete] and will be removed in v7.0 — context management becomes token-based only (ConversationPolicy). Until then the window is guaranteed to preserve the most recent user message. Requires Mythosia.AI.Abstractions v2.4.0. --- ## Documentation - Basic Usage: https://github.com/AJ-comp/Mythosia.AI/wiki - Advanced Features: https://github.com/AJ-comp/Mythosia.AI/wiki/Advanced-Features - Release Notes: https://github.com/AJ-comp/Mythosia.AI/wiki/Release-Notes - GitHub: https://github.com/AJ-comp/Mythosia.AI
NjxyChatAISDK

支持通过API调用OpenAI、DeepSeek、Doubao
Mythosia.AI.Providers.Alibaba

Alibaba Cloud Qwen provider package for Mythosia.AI. Includes QwenService with expanded Qwen 3 / 3.5 model constants, platform-specific thinking request handling across DashScope, vLLM, and Ollama, token usage streaming support, and Mythosia.AI v6.4.0 compatibility. Documentation - GitHub: https://github.com/AJ-comp/Mythosia.AI - Release Notes: core/Mythosia.AI.Providers.Alibaba/RELEASE_NOTES.md
TokenFlow.Tokenizers

Model-specific tokenizer implementations for TokenFlow.AI (OpenAI, Claude, etc.).
Serina.Semantic.Ai.Pipelines

Serina Pipelines for Semantic Kernel allows to build flexible Ai Proccessing pipelines.

GitHub repositories (3)

Showing the top 3 popular GitHub repositories that depend on TiktokenSharp:

Repository Stars
StartupHakk/OpenMonoAgent.ai
(BETA) AI shouldn't have a meter. Unlimited tokens. Forever. Your machine. Your agent. Use it from anywhere. Terminal-native coding agent powered by local LLMs — 100% open source, free forever, and installed with a single command. Proudly built on C#/.NET, because AI tooling should be infrastructure, not a subscription.
MayDay-wpf/AIBotPublic
AIBot PRO 是一个基于.NET 8 的 AI聚合客户端 to C 弱 to B 可以集成众多AI产品(ChatGPT,Gemini,Claude,文心一言,通义千问,讯飞星火)，无感切换对话，支持知识库、插件开发、AI流程引擎（workflow）、以及开放平台对外输出定制化的特色AI API
dmitry-brazhenko/SharpToken
SharpToken is a C# library for tokenizing natural language text. It's based on the tiktoken Python library and designed to be fast and accurate.
Version Downloads Last Updated
1.2.1 35,265 2/22/2026
1.2.0 46,875 11/19/2025
1.1.8 85,310 8/14/2025
1.1.7 88,230 3/14/2025
1.1.6 27,103 12/24/2024
1.1.5 46,901 10/8/2024
1.1.4 140,954 5/14/2024
1.1.2 644 5/14/2024 1.1.2 is deprecated because it has critical bugs.
1.1.1 304 5/14/2024 1.1.1 is deprecated because it has critical bugs.
1.1.0 15,579 4/8/2024
1.0.9 25,031 2/8/2024
1.0.8 19,777 12/27/2023
1.0.7 39,852 10/10/2023
1.0.6 105,405 6/25/2023
1.0.5 53,807 5/8/2023
1.0.4 3,283 4/24/2023
1.0.3 3,445 3/21/2023
1.0.2 1,388 3/17/2023
1.0.1 1,654 3/13/2023
1.0.0 1,112 3/7/2023