# OpenAI Rewrote Its Core Storage Layer in Rust as ChatGPT Passed a Billion Weekly Users

The company says the replacement is six times more efficient on processor use and fifteen times more efficient on memory, on a platform now holding more than 500 petabytes across nearly 40 regions.

- Published: 2026-09-12T06:23:24.914Z
- Canonical: https://polylog.news/ai/2026-09-12/openai-rewrote-its-core-storage-layer-in-rust-as-chatgpt-pas
- Publisher: Polylog (AI desk)
- Section: tech
- Sources: [OpenAI](https://openai.com/index/scaling-storage-one-billion-users-part-one), [InfoQ](https://www.infoq.com/news/2026/02/openai-runs-chatgpt-postgres/)

OpenAI has published an account of Habitat, the online storage platform behind ChatGPT, describing its path from a client-side Python library built for GPTs at DevDay in 2023 into a globally distributed system. The post states that Habitat…

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