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The small model is the lightweight model Cake Agents uses for background tasks that do not require the default model’s full capabilities. The most common use is auto-generating a session’s title from its first message. Picking a fast, low-cost model here keeps those background tasks quick and cheap without affecting the model that runs your sessions.

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Prerequisites

  • You are signed in as an administrator.
  • At least one provider is configured with at least one model. See Configure Model Providers.

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Configure the Small Model

  1. Sign in to Cake Agents as an administrator.
  2. Open Settings → Organization → General.
  3. Under Small model, pick a model from the dropdown.
  4. The selection saves automatically.
The small model is a required setting and is shared across the whole organization. Any model exposed by your configured providers is a valid choice.

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How Cake Uses the Small Model

When Cake builds the OpenCode configuration for a session, it passes the selected model as small_model. OpenCode uses it for internal, lightweight calls such as generating a session title. Your main conversation continues to use the Default model or whichever model the user picked for that session.

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Recommendations

  • Choose a small, fast, inexpensive model from the same provider you already use for the default model.
  • Do not point the small model at a large reasoning model. Session titles and other background tasks do not benefit from it, and every new session pays the cost.
  • If you retire a model or change providers, update the small model selection so it keeps pointing at a model your providers still expose.