Models & bring-your-own-key
Choose which AI model powers an agent, override the workspace default per agent, and bill usage to your own provider account with BYOK.
Every agent runs on an AI model. By default it uses your workspace's default model, but you can override the model per agent.
Choosing a model
Your workspace has a default model set in Settings → AI Models. An individual agent can either:
- Inherit the default — the agent uses whatever your workspace default is.
- Use a per-agent model — override it for this agent only, for example to use a more capable model for a complex agent and a faster one elsewhere.
Auxx supports models from multiple providers, including Claude and GPT. See AI models & providers for the full list and how to configure them.
Bring your own key (BYOK)
If you supply your own provider API key, the agent's usage is billed to your provider account instead of counting against your Auxx credits. This is useful if you already have provider capacity or want direct control over model spend.
You connect provider keys at the workspace level, and agents can be pinned to them through app accounts.
Model parameters are matched to the model
Each model supports different settings (like temperature or reasoning effort). Auxx automatically applies only the parameters the selected model accepts, so you don't have to track per-model compatibility.