Run openai/tiktoken on Android 😃
This project is based on eisber/tiktoken, thanks his work!
Assume that you already installed ndk, rustup and cargo in your computer, prefer Linux,
# Specify the path where your Android NDK is located, must be r25 or newer.
export ANDROID_NDK_ROOT=$HOME/Android/Sdk/ndk/25.2.9519653 # or other path.
export PATH=$ANDROID_NDK_ROOT/toolchains/llvm/prebuilt/linux-x86_64/bin:$PATH
# Install rust cross-compilation toolchains.
rustup target add aarch64-linux-android
rustup target add armv7-linux-androideabi
rustup target add x86_64-linux-android
rustup target add i686-linux-android
# Then just run build script.
./build.shThe build results are located at ./target directory,
./target/aarch64-linux-android/release/lib_tiktoken_jni.so
./target/armv7-linux-androideabi/release/lib_tiktoken_jni.so
./target/x86_64-linux-android/release/lib_tiktoken_jni.so
./target/i686-linux-android/release/lib_tiktoken_jni.so
Just copy those .so files and ./java/src/main/java/tiktoken/Encoding.java to your project,
and make sure your App has android.permission.INTERNET permission, then everything shoule be fine 🍻
Here is a example for you,
// lib_tiktoken_jni.so will download target model .tiktoken file when it first init,
// for example https://openaipublic.blob.core.windows.net/encodings/r50k_base.tiktoken
new Thread(() -> {
Encoding encoding = new Encoding("text-davinci-001");
long[] a = encoding.encode("test", new String[0], 0); // a = [9288].
encoding.close();
}).start();MIT License
Copyright (c) 2023 Matthew Lee
Copyright (c) 2023 Microsoft, Markus Cozowicz
Copyright (c) 2022 OpenAI, Shantanu Jain
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