Model choices
Which model to pick
Green Small is the default and the right choice for most tasks. Drop to Green Tiny for quick, simple questions; step up to Green Large when a task needs multi-step reasoning. Switch anytime from the model selector above the input area.
Which models you can use depends on your plan. Plan comparison and exact allocations are on the pricing page, and plans and limits explains how the token limits work.
The green models
Three models run on 100% renewable energy infrastructure:
- Green Tiny: the smallest and most efficient. Good for quick questions and simple tasks.
- Green Small: the everyday model and the default. Good for most work, with a solid balance of speed and capability.
- Green Large: the strongest of the three. Good for detailed analysis and multi-step reasoning.
Details on each model, including who makes it and where it runs, are on the about page.
The Claude models
Haiku and Sonnet, made by Anthropic, are available on the Advanced plan for work that needs stronger reasoning. Haiku is the faster of the two; Sonnet is the more capable.
Claude does not run on infrastructure we can certify as renewable, so its energy numbers are estimated rather than measured. That is a compromise, and we disclose it. See measured vs estimated for how the estimates work.
What we leave out
No frontier models, no image generation. That is on purpose, not a gap we plan to close. Smaller models handle most everyday tasks well and use much less energy, and we exclude models that fail published safety benchmarks, whatever their capability.
If you need maximum capability regardless of cost, this may not be your tool. We would rather say that plainly than sell you the wrong thing.
The reasoning behind what we include is on the about page; the safety grades and the compromises we accept are on the transparency page.