Sigel joins Ken at launch for deeper work. Plans from $10 a month.

Superseded on October 19, 2026. The current plan is in Sigel is the one Wynfall model at public launch, on every plan.

Wynfall Ken and Wynfall Sigel are the planned launch pair. Sigel is the deeper reasoning model, for work that crosses files, systems and decisions, and it is included in paid plans.

Compare the plans

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