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Epistemic status: quick google search, uncertain about everything, have not read the linked papers. ~15 minutes of time investment.
Source 1
The Carbon Footprint of ChatGPT
[...] ChatGPT is based on a version of GPT-3. It has been estimated that training GPT-3 consumed 1,287 MWh which emitted 552 tons CO2e [1].
Using the ML CO2 Impact calculator, we can estimate ChatGPT’s daily carbon footprint to 23.04 kgCO2e.
[...] ChatGPT probably handles way more daily requests [compared to Bloom], so it might be fair to expect it has a larger carbon footprint.
Source 2
The carbon footprint of ChatGPT
3.82 tCO₂e per day
Also, maybe take a look into this paper about a different language model:
ESTIMATING THE CARBON FOOTPRINT OF BLOOM, A 176B PARAMETER LANGUAGE MODEL
https://arxiv.org/pdf/2211.02001.pdf
Quantifying the Carbon Emissions of Machine Learning
https://arxiv.org/pdf/1910.09700.pdf
You can play a bit with this calculator, which was also used in source 1:
ML CO2 Impact
https://mlco2.github.io/impact/