OpenAI Migrates Habitat Storage Platform from Python to Rust for Massive Scaling

Habitat, which first launched at DevDay 2023 as a Python library for GPTs, has evolved into a critical distributed system. As of September 2026, the platform manages over 500 petabytes of data and handles more than 70 million requests per second, supporting over 1 billion weekly users across approximately 40 geographic regions.

The move to Rust was driven by the need to manage unprecedented growth. While the Python implementation using asyncio allowed for rapid development, it faced challenges with CPU-intensive tasks and tail latencies due to the Global Interpreter Lock (GIL) and event loop scheduling delays. By migrating to Rust, OpenAI achieved a 6x improvement in CPU efficiency and a 15x improvement in memory efficiency, alongside significantly reduced latency.