Two new models are in the picker: Claude Fable 5.1 replaces Claude Fable 5, and GPT-6 Astra joins the OpenAI lineup as its flagship.<h2>How to use them</h2><ol><li>Open the model picker next to the prompt box on the AI Designer, or in the chat panel inside the editor.</li><li>Pick Claude Fable 5.1 or GPT-6 Astra. Both are tagged Premium and both support the Think toggle.</li><li>Send your next message. You can switch back at any time between turns, and you can set either as your brand's default at Settings → AI.</li></ol><h2>What changed for your credits</h2>Credits stay usage-based: you pay for the tokens each turn actually used, at the model's list price. Fable 5.1 is priced like Fable 5 for input and output but makes repeated context much cheaper, so long conversations on a design cost less than before. GPT-6 Astra is priced the same as Fable 5.1.If your brand default was set to Fable 5, it now points at Fable 5.1 automatically. Nothing to change on your side.

Claude Fable 5.1 and GPT-6 Astra in the model picker

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