pybind11 VS tokenizers

Compare pybind11 vs tokenizers and see what are their differences.


Seamless operability between C++11 and Python (by pybind)


πŸ’₯ Fast State-of-the-Art Tokenizers optimized for Research and Production (by huggingface)
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pybind11 tokenizers
21 5
10,076 5,026
1.4% 1.8%
9.4 7.8
4 days ago 7 days ago
C++ Rust
GNU General Public License v3.0 or later Apache License 2.0
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.


Posts with mentions or reviews of pybind11. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2021-11-18.


Posts with mentions or reviews of tokenizers. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2021-09-10.
  • Portability of Rust in 2021
    8 projects | | 10 Sep 2021
    In sum I would like the idea to go with Rust as I more or less got to rewrite the whole thing anyway, but I am a bit skeptical if I will be able to interface with everything that might come up at some point. Or probably end up in a wrapper hell if I got to use more C++ libraries. On the other hand there are definitely a few Rust projects out there that might come in handy (for example And the build process is pretty awful right now (CMake it is but with lots of hacks).
  • [D] What's going to be the dominant language for machine learning in 5 years?
    1 project | | 9 Feb 2021
    A full machine learning pipeline usually comprises far more than just the model, and this is the area where Rust may shine (the recent work by HuggingFace and their library is a good example)
  • substitute for tokenizer in torchtext
    1 project | | 31 Jan 2021
    As for other tokenizers, you can take a look at - Huggingface tokenizers library: - NLTK tokenize: - Polygot:
  • PyO3: Rust Bindings for the Python Interpreter
    18 projects | | 29 Jan 2021
    Huggingface Tokenizers (, which are now used by default in their Transformers Python library, use pyO3 and became popular due to the pitch that it encoded text an order of magnitude faster with zero config changes.

    It lives up to that claim. (I had issues with return object typing when going between Python/Rust at first but those are more consistent now)

  • Rusticles #19 - Wed Nov 11 2020
    16 projects | | 10 Nov 2020
    huggingface/tokenizers (Rust): πŸ’₯Fast State-of-the-Art Tokenizers optimized for Research and Production

What are some alternatives?

When comparing pybind11 and tokenizers you can also consider the following projects:

PyO3 - Rust bindings for the Python interpreter

sparsehash - C++ associative containers

setuptools-rust - Setuptools plugin for Rust support

PEGTL - Parsing Expression Grammar Template Library

Optional Argument in C++ - Named Optional Arguments in C++17

sparsehash-c11 - Experimental C++11 version of sparsehash

Hashmaps - Various open addressing hashmap algorithms in C++

LSHBOX - A c++ toolbox of locality-sensitive hashing (LSH), provides several popular LSH algorithms, also support python and matlab.

FunctionalPlus - Functional Programming Library for C++. Write concise and readable C++ code.

xeus-cling - Jupyter kernel for the C++ programming language

dynamic_bitset - Simple Useful Libraries: C++17/20 header-only dynamic bitset

py2many - Python to CLike languages transpiler