We (or rather They) did the math
There’s been a lot of debate around the environmental impact of artificial intelligence, particularly the electricity, water, and carbon involved in running large language models. New research shared by Google suggests that, at least for its Gemini models, the per-prompt footprint is much smaller than many have assumed.
According to Google’s findings, a single text prompt in Gemini Apps uses:
- 0.24 watt-hours (Wh) of energy
- 0.03 grams of carbon dioxide equivalent (gCO₂e)
- 0.26 milliliters of water (about five drops)
To put that in perspective: the average Gemini request requires about the same energy as watching TV for under nine seconds.
Why This Matters
Public discourse has painted AI models as energy-hungry and environmentally damaging, often citing high training costs. While training still requires immense resources, Google argues that the ongoing inference stage—running day-to-day prompts is far less resource-intensive.
This is significant, because most everyday use of AI happens at the inference level. If Google’s numbers hold up across independent verification, it means AI tools like Gemini may not be the environmental drain that many headlines suggest.
Caveats and Considerations
- These estimates come directly from Google, so independent validation will be crucial.
- Training costs are not included—training large models remains energy- and water-intensive.
- Usage at scale still adds up. Even tiny impacts multiplied by billions of prompts across the globe lead to meaningful totals.
The Bigger Picture
Google’s release seems designed to reframe the conversation: while AI’s overall footprint is real, the marginal cost per prompt might be closer to using your phone for a few seconds than powering a factory.
If true, this shifts the narrative. The critical questions may no longer focus only on “AI consumes too much energy,” but also on how data centers are powered (renewables vs. fossil fuels), how often models are retrained, and how efficiently the next generation of AI is deployed.
👉 Takeaway: A single Gemini prompt might sip resources rather than guzzle them. But at global scale, responsible deployment, energy sourcing, and transparency will determine whether AI remains sustainable as adoption accelerates.
