ChatGPT Consumption adds a small, always-visible panel to the ChatGPT web interface so you can watch a conversation grow in cost terms rather than just in words. As you type and the model replies, the extension tallies the tokens produced in the current thread and pairs that number with an estimated figure for the water consumed by the data-center infrastructure behind the request. The result is a running scoreboard of your session's footprint instead of an abstract statistic you read about elsewhere.
The tool was built for people who think about sustainability and about efficiency at the same time. Knowing the token count of a thread is genuinely useful even if you never look at the environmental numbers: it tells you when a prompt has become bloated, when context has spiralled, and when you would be better off starting a fresh conversation. The water estimate adds a second lens, framing each exchange as a small draw on shared physical resources.
Installation is a one-click add from the Chrome Web Store and there is nothing to configure. The extension is offered free of charge, was last updated in May 2024, and declares that it does not collect or sell user data. Treat the environmental figures as directional estimates rather than audited measurements, since real data-center consumption varies enormously by location, time of day, and hardware.
