What your AI usage costs, and what it emits
TokenClimate turns token volumes into euros, energy, CO₂e and water. The methodology is public and versioned, every factor carries its source and a confidence level, and the same equations power the free calculator, the paid report and the open source plugin.
Cost and footprint calculator →
Free, no account. Describe a model mix on Claude, GPT, Gemini, Mistral, DeepSeek or Llama and get monthly cost, energy, CO₂e and water, with every factor sourced and versioned.
A self-serve report of your organisation's real Claude usage: cost and footprint measured through your Anthropic admin key (never stored), with a citation-ready methodology annex. About fifteen minutes.
The open source plugin that measures Claude Code sessions locally, no account needed. The SaaS and the plugin share the same methodology, verified weekly in CI against common golden vectors.
TokenClimate is built in France and part of the site (guides, offer) is French for now. The calculator, the model sheets, the methodology and the AI usage report are available in English.