Not of fan of the company for the social media but have to appreciate all the open sourcing. none of the other top labs release thier models like meta.
Don't basically all the "top labs" except Anthropic now have open weight models? And Zuckerberg said they were now going to be "careful about what we choose to open source" in the future, which is a shift from their previous rhetoric about "Open Source AI is the Path Forward".
Facebook is a deeply scummy company[2] and their stranglehold on online advertising spend (along with Google) allows them to pour enormous funds into side bets like this.
i prefer to say thank you when someone is doing something good
These projects come to my mind:
SAM segment anything.
PyTorch
LLama
...
Open source datacenters and server blueprints.
the following instead comes from grok.com
Meta’s open-source hall of fame (Nov 2025)
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Llama family (2 → 3.3) – 2023-2025 >500k total stars · powers ~80% of models on Hugging Face Single-handedly killed the closed frontier model monopoly
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PyTorch – 2017 85k+ stars · the #1 ML framework in research TensorFlow is basically dead in academia now
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React + React Native – 2013/2015 230k + 120k stars Still the de-facto UI standard for web & mobile
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FAISS – 2017 32k stars · used literally everywhere (even inside OpenAI) The vector similarity search library
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Segment Anything (SAM 1 & 2) – 2023-2024 55k stars Revolutionized image segmentation overnight
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Open Compute Project – 2011 Entire open-source datacenter designs (servers, racks, networking, power) Google, Microsoft, Apple, and basically the whole hyperscaler industry build on OCP blueprints
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Zstandard (zstd) – 2016 Faster than gzip · now in Linux kernel, NVIDIA drivers, Cloudflare, etc. The new compression king
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Buck2 – 2023 Rust build system, 3-5× faster than Buck1 Handles Meta’s insane monorepo without dying
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Prophet – 2017 · 20k stars Go-to time-series forecasting library for business
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Hydra – 2020 · 9k stars Config management that saved the sanity of ML researchers
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Docusaurus – 2017 · 55k stars Powers docs for React, Jest, Babel, etc.
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Velox – 2022 C++ query engine · backbone of next-gen Presto/Trino
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Sapling – 2023 Git replacement that actually works at 10M+ file scale
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Meta’s GitHub org is now >3 million stars total — more than Google + Microsoft + Amazon combined.
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Bottom line: if you’re using modern AI in 2025, there’s a ~90% chance you’re running on something Meta open-sourced for free.