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state-spaces/mamba

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TLDR

A Python library implementing Mamba, a neural network architecture that processes sequences (text, audio, time series) more efficiently than Transformers by using selective state space models instead of attention.

Mindmap

mindmap
  root((Mamba))
    What it does
      Processes sequences efficiently
      Replaces Transformer attention
      Handles text and audio
    Architecture variants
      Original Mamba
      Mamba-2 cleaner math
      Mamba-3 inference focused
    Tech stack
      Python library
      PyTorch required
      NVIDIA GPU needed
    Use cases
      Language model building
      Time series modeling
      Sequence research
    Getting started
      Linux with GPU
      Pip installation
      Pre-trained models

Things people build with this

USE CASE 1

Build language models that process long documents faster than Transformers with lower memory usage.

USE CASE 2

Train time-series forecasting models on financial data, sensor readings, or other sequential signals.

USE CASE 3

Experiment with alternative sequence architectures for audio processing or speech recognition tasks.

USE CASE 4

Fine-tune pre-trained Mamba models for domain-specific NLP applications.

Tech stack

PythonPyTorchNVIDIA CUDAState Space Models

Getting it running

Difficulty · moderate Time to first run · 30min

CUDA compilation required for optimal performance; CPU fallback available but slow.

Use freely for any purpose including commercial. Keep the notice and disclose changes to the patent grant.

In plain English

Mamba is a Python library implementing a new type of neural network architecture designed to handle sequences of data, such as text, audio, or time series, more efficiently than the standard Transformer approach. Transformers, which power most modern AI language models, become slower and more memory-hungry as sequences get longer because every element must attend to every other element. Mamba uses a different mechanism called a selective state space model (SSM), which processes sequences in a way that scales more efficiently with length. The repository provides three generations of the architecture: the original Mamba, Mamba-2 (which introduces a mathematically cleaner formulation connecting state space models and attention), and Mamba-3 (an inference-focused improvement). Each can be used as a building block inside larger neural network models. Pre-trained language models of various sizes are available for download and testing. Using Mamba requires a Linux system with an NVIDIA GPU and a compatible version of PyTorch installed. The library is installable via pip. The project was developed by Albert Gu and Tri Dao, with subsequent work adding the Mamba-2 and Mamba-3 variants. It is intended for researchers and engineers building or experimenting with sequence modeling systems.

Copy-paste prompts

Prompt 1
How do I install Mamba and load a pre-trained language model to generate text?
Prompt 2
Show me how to use Mamba as a building block inside a custom neural network for sequence classification.
Prompt 3
What are the key differences between Mamba, Mamba-2, and Mamba-3, and when should I use each one?
Prompt 4
How do I train a Mamba model from scratch on my own sequence data using PyTorch?
Prompt 5
Compare the memory usage and inference speed of Mamba versus a Transformer on long sequences.
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Generated 2026-05-18 · Model: sonnet-4-6 · Verify against the repo before relying on details.