Lasagne
Lightweight library for building and training neural networks in Theano.
- Status
- UnmaintainedNo commits in 2470 days.
- Last checked
- Checked · Oct 11, 2026
- License
- Open source
- Pricing
- Free tier · from $0
What it is
Lasagne is a lightweight library that simplifies the process of building and training neural networks using Theano. It provides a flexible and user-friendly interface, making it easier to develop deep learning models without sacrificing performance or flexibility.
Lasagne stands out as a lightweight, flexible library that simplifies the process of building and training neural networks using Theano, offering high performance without the complexity of larger frameworks.
When it fits — and when it doesn’t
A good fit for
Researchers and developers who need a lightweight, flexible library to build and train neural networks using Theano.
Projects that require high performance and flexibility in deep learning model development without the overhead of larger frameworks.
Look elsewhere if
Teams looking for a comprehensive end-to-end solution with extensive pre-built models and integrations.
Developers who prefer higher-level abstractions or user interfaces for building neural networks.
Known weaknesses
Each one links to the public issue, changelog or docs page it came from, where we have one.
- 01
Limited active development and support
The last significant update was several years ago, indicating reduced community activity and maintenance.
- 02
Dependence on Theano, which is no longer actively maintained
Theano's end-of-life status can lead to compatibility issues and lack of performance improvements over time.
- 03
Steep learning curve for new users unfamiliar with Theano
Understanding the underlying Theano mechanics is necessary for advanced usage, which requires significant study.
- 04
Documentation lacks comprehensive examples and tutorials
The official documentation focuses on API references but lacks practical use cases and detailed explanations.
What it does well
Lightweight and easy to use interface for building neural networks.
Built on top of Theano, providing high performance and flexibility.
Supports a wide range of layer types and activation functions.
Integrates seamlessly with other Python libraries for data processing.
Active community support and extensive documentation.
Pricing
- Free tier
- YesOpen source — free to use
- Paid from
- $0
- Model
- Flat rate
- Enterprise plan
- No
Pricing not independently confirmed — check the vendor’s page.
Performance benchmarks
How Fast Is It?
Set up Lasagne
Setup steps, common gotchas and what to check after 30 days.
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