The carbon emissions from training AI models have increased dramatically, from just **** tons with AlexNet in 2012 to a massive ****** tons for Grok 4 in 2025.
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Stanford University. (April 13, 2026). Artificial intelligence (AI) carbon footprint impact from 2012 to 2025, by model [Graph]. In Statista. Retrieved May 07, 2026, from https://www.statista.com/statistics/1611565/ai-training-carbon-emissions/
Stanford University. "Artificial intelligence (AI) carbon footprint impact from 2012 to 2025, by model." Chart. April 13, 2026. Statista. Accessed May 07, 2026. https://www.statista.com/statistics/1611565/ai-training-carbon-emissions/
Stanford University. (2026). Artificial intelligence (AI) carbon footprint impact from 2012 to 2025, by model. Statista. Statista Inc.. Accessed: May 07, 2026. https://www.statista.com/statistics/1611565/ai-training-carbon-emissions/
Stanford University. "Artificial Intelligence (Ai) Carbon Footprint Impact from 2012 to 2025, by Model." Statista, Statista Inc., 13 Apr 2026, https://www.statista.com/statistics/1611565/ai-training-carbon-emissions/
Stanford University, Artificial intelligence (AI) carbon footprint impact from 2012 to 2025, by model Statista, https://www.statista.com/statistics/1611565/ai-training-carbon-emissions/ (last visited May 07, 2026)
Artificial intelligence (AI) carbon footprint impact from 2012 to 2025, by model [Graph], Stanford University, April 13, 2026. [Online]. Available: https://www.statista.com/statistics/1611565/ai-training-carbon-emissions/
