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Premium allows Summer Engine to select the most capable models for you, recommended for the most complex tasks. Premium is available on all paid plans.

When to Use Premium

  • Long agentic tasks that span many files.
  • Complex refactors and architecture work.
  • Hard reasoning problems where quality matters more than speed or cost.

When Auto Is Enough

For everyday tasks — small features, quick edits, questions about your project — Auto is faster and cheaper.

Picking a Specific Model

If you want a specific model rather than letting Premium pick, see Models for the full list of models available on paid plans.
Premium routing is opaque on purpose: the underlying model may change as new flagship models ship. If you need a specific model, pick it directly from the selector.