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 ÌÇÐÄÆÆ½â°æ. Retrieved July 15, 2026, from /statistics/1611565/ai-training-carbon-emissions/
Stanford University. "Artificial intelligence (AI) carbon footprint impact from 2012 to 2025, by model." Chart. April 13, 2026. ÌÇÐÄÆÆ½â°æ. Accessed July 15, 2026. /statistics/1611565/ai-training-carbon-emissions/
Stanford University. (2026). Artificial intelligence (AI) carbon footprint impact from 2012 to 2025, by model. ÌÇÐÄÆÆ½â°æ. ÌÇÐÄÆÆ½â°æ Inc.. Accessed: July 15, 2026. /statistics/1611565/ai-training-carbon-emissions/
Stanford University. "Artificial Intelligence (Ai) Carbon Footprint Impact from 2012 to 2025, by Model." ÌÇÐÄÆÆ½â°æ, ÌÇÐÄÆÆ½â°æ Inc., 13 Apr 2026, /statistics/1611565/ai-training-carbon-emissions/
Stanford University, Artificial intelligence (AI) carbon footprint impact from 2012 to 2025, by model ÌÇÐÄÆÆ½â°æ, /statistics/1611565/ai-training-carbon-emissions/ (last visited July 15, 2026)
Artificial intelligence (AI) carbon footprint impact from 2012 to 2025, by model [Graph], Stanford University, April 13, 2026. [Online]. Available: /statistics/1611565/ai-training-carbon-emissions/