Dialing in the Topaz Video AI best settings comes down to one thing: match the right AI model to your footage, then fine-tune in small steps. This 2026 guide gives you a settings-by-content-type table, a plain-English tour of every current model (Proteus, Iris, Nyx, Rhea, Gaia, Theia, Dione, Starlight, plus Apollo/Chronos/Aion), a full step-by-step workflow, verified system requirements and subscription pricing, and a fair look at UniFab All-In-One as a simpler alternative.