> ## Documentation Index
> Fetch the complete documentation index at: https://calcs.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# What AI Models Power CalcsAI?

> CalcsAI runs on established foundational model providers behind a routing layer that picks the best model per task and fails over if one goes down.

CalcsAI runs on established foundational model providers, accessed through a routing layer that picks the best model for each task and fails over to another provider if one goes down. We do not host or train our own foundational models.