ChatGPT vs Claude

Supporting comparison page

ChatGPT

150g

CO2 / HOUR

Higher emissions

Claude

140g

CO2 / HOUR

Summary

When comparing ChatGPT and Claude, ChatGPT generates significantly more CO2 emissions per hour (150g) than Claude (140g). Both applications rely on devices, networks, and server infrastructure, which all contribute to their environmental impact.

Deep dive into their footprints

Read the full ChatGPT report Read the full Claude report

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