Theano/Theano
Theano was a Python library that allows you to define, optimize, and evaluate mathematical expressions involving multi-dimensional arrays efficiently. It is being continued as PyTensor: www.github.com/pymc-devs/pytensor observed · 2026-08-28
Health v2 · maintenance only
32/100
- Activity 0
- Release rhythm 35
- Longevity 100
Flags: no_releases no_license
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-02. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 5502
- days_rel: n/a
- days_push: 961
- n_releases_24m: 0
Adoption not part of the score
9998 stars · 2464 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded
Theano is a Python library for defining, optimizing, and efficiently evaluating mathematical expressions involving multi-dimensional arrays. Development has stopped and the project is continued as PyTensor under the PyMC developers.
Use cases
- define and optimize symbolic mathematical expressions with multi-dimensional arrays
- compile numerical computations to efficient C or GPU code
- build deep learning models with a symbolic graph framework
- serve as a computational backend for probabilistic programming like PyMC
- evaluate array-based math efficiently in Python
When to choose
- you need a maintained successor - use PyTensor instead
- you are maintaining legacy code that already depends on Theano
- you need a hackable pure-Python symbolic graph framework for custom operators
When to avoid
- starting a new project - use PyTensor, PyTorch, TensorFlow, or JAX instead
- you need active community support or recent features
- you need modern GPU acceleration or the latest hardware support
Facets
library · maturity abandoned
machine-learning math compiler machine-learning deep-learning mathematics python windows symbolic-math numerical-computation gpu-computing pytensor-successor linux macos
2 sources
- readme: https://github.com/Theano/Theano · fetched 2026-08-28 · cc1b3586768a
- homepage: https://www.github.com/pymc-devs/pytensor · fetched 2026-08-29 · 4e389e53559a
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| Theano/Theano | main | 32 |
For agents
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem