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MIT Study Reveals Staggering Energy Costs of AI Tools Like ChatGPT and Video Generators

A groundbreaking study by MIT Technology Review has shed light on the immense energy demands of modern artificial intelligence tools, exposing a sharp contrast in energy use across various types of AI-generated content from chatbots to AI video generators.


💬 ChatGPT: From Light Queries to Heavy Loads

  • Energy per response: 114 to 6,706 joules
    • 🔌 Equivalent to running a microwave for 0.1 to 8 seconds
  • Why the gap? Smaller models use fewer parameters, saving energy but reducing answer quality.

🎬 AI Video Generation: A Massive Power Guzzler

  • Five-second AI video: ~3.4 million joules
    • That’s over 700x the energy used for a single AI-generated image
    • Equivalent to running a microwave oven for 1+ hour

🔍 Example Scenario: What Your Daily AI Use Costs

Using AI for:

  • ✅ 15 chatbot interactions
  • ✅ 10 image generations
  • ✅ 3 short (5-second) video clips

➡️ Consumes ~2.9 kilowatt-hours
That’s about 3.5 hours of microwave oven use – in energy.


🇺🇸 The Bigger Picture: Data Center Impact

  • U.S. data center electricity use has doubled since 2017
  • In 2024, U.S. data centers used as much power as all of Thailand
  • 📈 By 2028, nearly 50% of that power is projected to go entirely to AI workloads

🔄 What Changed?

Previously, improvements in server efficiency kept energy use steady. But AI’s rise—especially models requiring intense GPU computation—has triggered a power consumption explosion.


🧠 Key Takeaways

  • LLMs like ChatGPT are relatively efficient, but still energy-intensive at scale.
  • AI video generation is one of the most power-hungry content types.
  • The global energy footprint of AI is no longer theoretical—it’s measurable, growing fast, and posing real infrastructure challenges.

🔋 As AI becomes embedded in daily life, efficiency innovations will be key—not just for cost savings, but to prevent an environmental bottleneck.

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