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by Projet Celsius
Projet Celsius
AI Impact Database
A person takes a photo with their phone, in the evening
Database topicUses

Personal use and subscriptions

Personal AI use over one year, from the free offer to the most expensive subscriptions.

The lowest of the 11 offersFree personal use, 1 year340gCO2eper person, 1 year, servers worldwide× 360The heaviestClaude Max, 1 year120kgCO2eper subscription, 1 year

Emissions of one year of use, 11 offers

2 kgCO2eBars and squares are read by their area. A family with a value above the line is drawn in squares.

Personal use, subscriptions and licences11 offers

  1. Free personal use340 gCO2e
  2. ChatGPT Business1 kgCO2e
  3. Vibe Pro1.2 kgCO2e
  4. Claude Pro1.3 kgCO2e
  5. Microsoft 365 Copilot1.3 kgCO2e
  6. ChatGPT Plus1.4 kgCO2e
  7. Google AI Pro2.1 kgCO2e
  8. Perplexity Pro6.3 kgCO2e
  9. GitHub Copilot29 kgCO2e
  10. ChatGPT Pro91 kgCO2e
  11. "Free personal use" fits 360 timesClaude Max120 kgCO2e
Area proportional to the value. Default settings of each entry, over the life cycle. Servers worldwide. Calculation of the AI Impact Database of Projet Celsius.

All the entries of the topic

11 entries, each with its entry page: composition, assumptions and sources. With no named source, the value is a calculation of the database.

Occupations and activities

Personal use, subscriptions and licences11

Header photo: PattayaPatrol, Wikimedia Commons, CC BY-SA 4.0.

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The other topics of the database

Database topicOccupationsPrevious topicThe 20 entriesDatabase topicOrganisations and servicesNext topicThe 18 entriesDatabase topicCities, territories, populationsThe 15 entries

Across the hub

The reference chartsFrom the pollution of each AI to the electricity used by data centres, each with its data and sources.See the chartsWorld mapsCarbon intensity of electricity, low-carbon share, water stress, country by country.Explore the mapsThe calculation toolsEstimate the footprint of your uses, compare the country of the servers, browse the orders of magnitude.Open the tools

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An error, a source to add, a methodology question, a press request: write to us. Guillaume Pakula, Clément Reynaud, Sébastien Pierfederici and Alexandre Veilly will reply.

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Projet Celsius, which runs this hub, also helps companies measure and reduce the footprint of their AI use.

Counting AI in your Bilan Carbone®
Projet Celsius, environmental strategy consultancy

We support companies that account for AI in their Bilan Carbone®

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