OpenAI · Mythos · Codex · Samsung · The Register
OpenAI Codex bombards SSDs with needless write operations, costing millions
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Clumsy logging implementation squirrels away data without regard for cost.
Key facts
- Samsung's 2025 9100 PRO SSDs, for example, promise 600 TBW for the 1 TB SSD
- Another developer posting in Rui Fan's thread remarked, "Codex analyzed the disk usage and says this bug cost me $38.64 in drive value of their Samsung 990 2 TB NVMe
- On my machine, after about 21 days of uptime, the main SSD has written about 37 TB," wrote developer Rui Fan, a project management committee member of Apache Flink
- On a 1 TB SSD, that is about 640 full-drive writes per year
Summary
Modern SSDs have a limited number of write cycles before they expire. A bug report opened last week for the company's Codex coding agent warns of the consequences in its title: "Codex SQLite feedback logs can write ~640 TB/year and rapidly consume SSD endurance #28224." "On my machine, after about 21 days of uptime, the main SSD has written about 37 TB," wrote developer Rui Fan, a project management committee member of Apache Flink. "That extrapolates to roughly 640 TB/year. SSDs have a limited lifespan, often measured in terabytes written (TBW).