AI Model Selector Comes to Prompt Designer

Version: 1.19.34, Date: April 9, 2026

AI model selection is now supported in the Prompt Designer, matching the experience already in place for the Prompt Builder and Analyzers. You can choose which model powers your prompt generation, and credits are tracked and enforced correctly for each provider. Bring Your Own Key is fully supported alongside platform credits. The rest of this post is grouped by app area.

Designer

• New: Multi-provider model selection. You can now choose which AI model generates your prompt output directly from the Designer interface. Supported providers include OpenAI, Anthropic, Google, and xAI. Each model charges the appropriate credits for what it uses, so your quota always reflects actual cost.
• New: BYOK support is now fully available in the Prompt Designer, consistent with how it works across the rest of the platform.
• Improved: The AI Model Selector in the Prompt Designer now matches the pattern already in place for the Prompt Builder and Analyzers, giving you a uniform experience regardless of which tool you are working in.
• Improved: Model validation now runs before generation. If a model selection is invalid or missing, you see a clear, friendly error before generation runs, so there are no silent failures or unexpected results.