Alta added GPT-6 Astra, Claude Fable 5.1, Claude Opus 5.5 and Gemini 3.8 Flash to its premium model list, selectable per step from a model picker under any prompt: email, LinkedIn, SMS and WhatsApp steps, AI conditions, AI enrichments, the call flow, the web assistant and Workflow AI actions. A campaign level Default AI model setting can also be applied to steps already built. Premium models are limited to Professional and Enterprise plans, and a premium model in AI enrichments uses more credits per row.
Buyers can see and choose which named third party model drafts each outbound touch, and the plan gating and higher enrichment credit cost decide which tier and budget a team needs to use them.