PyTorch
The framework the AI world runs on
Latest: PyTorch 2.14.0 (Sept 2, 2026); ~2-month release cadence through 2026
The dominant deep-learning framework, created at FAIR and open-sourced in early 2017. Its define-by-run design won over researchers; PyTorch 2.0 (2023) added torch.compile for speed without losing flexibility. Governance moved to the Linux Foundation's PyTorch Foundation in September 2022, which became an umbrella foundation in May 2025 hosting vLLM, DeepSpeed and Ray.
Why it matters
The dominant deep-learning framework: its define-by-run design won researchers over, torch.compile in 2.0 closed the speed gap, and most modern AI papers and open models ship as PyTorch code. Meta handed governance to the Linux Foundation in 2022, and the PyTorch Foundation now also hosts vLLM, DeepSpeed and Ray.
Facts
- 102.7k GitHub stars and 29.1k forks (Sept 2026).
- The large majority of ML research papers that specify a framework use PyTorch, and most of Hugging Face's 3M+ public models ship PyTorch weights.
- PyTorch 2.11 (Mar 2026) added a FlashAttention-4 FlexAttention backend; 2.13 (Jul 2026) brought FlexAttention to Apple Silicon with ~12x speedups.
Try it yourself
Install PyTorch ↗ Official tutorials ↗ torch on PyPI ↗
Lineage
Sources
GitHub · pytorch ↗PyTorch blog · press release pytorch foundati ↗PyTorch blog · pytorch 2 11 release blog ↗pytorch.org ↗