new

Release

New Features & Major Enhancements

Self-Serve Billing Portal:
Added a dedicated Stripe Billing Portal flow for subscribed users. Users can now open the billing portal directly from the subscription page to view invoices, manage payment methods, and return back to VoiSpark after completing billing updates.
Narration Model Upgrade to Sonic 3:
Updated the narration backend to standardize Cartesia narration generation on Sonic 3. Older Sonic 2 and Sonic Turbo references have been removed from the active model catalog, giving users a cleaner and more expressive default narration experience with Sonic 3 support.

User Experience & Interface Polish

Improved Subscription Management:
Added a “Manage Payment” action to both desktop and mobile subscription panels. The button now includes clear loading states while the Stripe Billing Portal session is being created.
Cleaner Model Experience:
Simplified the Cartesia model surface by focusing on Sonic 3 as the supported narration model. This reduces outdated model choices and keeps narration templates aligned with the latest backend generation behavior.
Better Project Creation Visibility:
Narration creation flows now distinguish whether users start from onboarding, the home dashboard, or Voice Studio. This improves future product decisions around onboarding and project-start UX without changing the core creation flow.

Stability & Reliability

Safer Billing Portal Access:
Added backend safeguards so the billing portal is only available to users with an existing Stripe customer and subscription history. The system performs read-only customer lookup instead of creating new Stripe customers just to access billing management.
Updated Sonic 3 Test Coverage:
Refreshed narration preview, narration build task, narration history, and TTS API test references to use Sonic 3. This keeps automated and manual test scenarios aligned with the current narration model stack.