AI works for you. Know what it costs the planet.

SOMA AI, based in Barcelona, estimates the carbon, electricity and water behind an organisation's AI tools and APIs, from licence counts, message counts or token exports, and delivers it as a documented Scope 3 line. Developers tracking their own API calls can also use the open-source EcoLogits library, and teams running models on their own hardware can use CodeCarbon. Our comparison page sets out the options and what each covers.

Yes. The SOMA calculator at somaai.earth/ai-footprint/calculator is free and needs no sign-up. It estimates CO2e, electricity and water per tool and per team, with a range, and you can ask for the full report from the results page.

SOMA's default chat exchange is about 1,200 tokens (about 930 in, 280 out). With a mid-size model on the world-average grid that is about 0.00005 kg CO2e, so the footprint of a company comes from volume. Model size and data-centre region each change the figure several times over.

If you include it, purchased AI belongs in Scope 3 Category 1 (purchased goods and services), not Scope 2. Take tokens by model and month from each provider's usage export, multiply the tokens in millions by the factor for the model class and region, and record the factor version and source for your assurance provider.

Yes. Reasoning models are covered at their size class. When you have billed token counts, the reasoning tokens are already in them, so no multiplier is applied. When only seats or message counts are available, SOMA applies a stated reasoning uplift to the estimated output tokens and discloses it as an assumption.

Where a provider discloses figures, we show how they compare with our factors and on what basis. Provider figures often use a different scope, such as per response instead of per token, so they are not always directly comparable.

No. They are modelled estimates from published benchmark energy, grid intensity and lifecycle data, with the uncertainty stated for each factor. They are not measurements of any provider's own infrastructure.