Mistral Medium 3.5: cost, energy and CO₂ per token
What is the footprint of Mistral Medium 3.5? Mistral Medium 3.5 emits about 55 g of CO₂e, uses 2.3 L of water and 508 Wh of electricity per million generated tokens. Per million input tokens: 9 g of CO₂e, 377 mL of water, 85 Wh. Public price: €7 per million generated tokens, €1 for input.
Factors ecologits-0.10.2-derived-2026-09, updated on , medium confidence. Sources and equations in the methodology.
Key figures, per million tokens
| Energy | CO₂e | Water | Price | |
|---|---|---|---|---|
| Input tokens | 85 Wh | 9 g | 377 mL | €1 |
| Generated tokens | 508 Wh | 55 g | 2.3 L | €7 |
Of the 23 models in the TokenClimate registry, Mistral Medium 3.5 ranks 3rd for carbon intensity per million generated tokens, below the median (731 g). The gap with Mistral Small 4, the registry's most frugal, is still ×2.5.
Frequently asked questions
How much CO₂e for 1 million tokens with Mistral Medium 3.5?
About 55 g per million generated tokens and 9 g per million input tokens (factors ecologits-0.10.2-derived-2026-09 of the TokenClimate registry).
Where do these figures come from?
Factors published in TokenClimate's versioned registry, each with its citation on this page. The full equations and parameters are in the public methodology, at tokenclimate.com/en/methodology.
What is the confidence level?
Medium confidence: derived from a fitted model, or a partial fit completed by a convention.
How can you measure your organisation's real usage?
The AI usage report computes twelve months of cost and CO₂e from your organisation's Anthropic admin key (the key is never stored), ready in about fifteen minutes: tokenclimate.com/bilan/en. Locally, the open source plugin claude-carbon measures a Claude Code session.
Sources and method
Energy per token
The per-token energy factor behind the figures above, published with its citation. (EcoLogits v0.10.2)
Infrastructure parameters
Datacenter parameters applied to this provider (the equations live in the methodology). (WRI 2020, water use embedded in purchased electricity)
| PUE | 1.16 |
| Grid carbon intensity (CIF) | 0.056 kgCO₂e/kWh |
| On-site water (WUE) | 0.18 L/kWh |
| Off-site water (EWIF) | 3.67 L/kWh |
| Amortised manufacturing (embodied) | 44 gCO₂e/kWh |
Price
Public provider prices. (mistral.ai/pricing)
Full equations and assumptions in the methodology.