What's New in Synthflow: Deepgram Nova-3, Flow Designer Autosave and Autocomplete, Multi-Currency, Import Actions to Subaccounts, Better RAG & More
This release is packed with features that make building and scaling with Synthflow smoother than ever. We’ve improved transcription by 25%. Flow Designer now supports autosave and autocomplete, assistant actions are easier to transfer between subaccounts, and agency pricing plans now support multi-currency billing. We’ve also rolled out API improvements, bug fixes, and enabled Krisp by default for crystal-clear calls.
Deployed Nova-3
We’ve integrated Deepgram Nova-3, the world's leading transcription model that reduces errors in English-language transcription by 25% compared to Nova-2, our previously used model. To ensure maximum performance and speed, we’ve deployed the model on our own servers.
Flow Designer Autosave and Autocomplete
Flow Designer now includes autosave, along with autocomplete support for actions, variables, and results—making it faster and easier to build and edit flows.
Subaccount Action Importing and Concurrency Limits
Subaccount Action Importing
Actions can now be imported into subaccounts by importing an assistant. All associated actions will transfer automatically—except for appointment booking actions, which must be configured separately.
Subaccount Concurrency Limits
You can now define a concurrency limit when creating a subaccount to control the maximum number of concurrent calls. Use the optional concurrency parameter in the create-subaccount endpoint. (Docs)
Multi-Currency for Subscriptions and Rebilling
Pricing plans can now be created and billed in multiple currencies (EUR, CAD, USD). Subaccounts will be charged in the currency of the pricing plan they subscribe to. For example, if a plan is created in CAD, the subaccount will be billed in CAD for both the subscription and any usage-based charges.
Idle Parameter Configuration via API
Idle Parameters Configuration via API: You can now programmatically change the max idle duration, number of idle reminders, and the reminder message through the API. (Docs)
Fixed: 401 Error on Subaccount Phone Number Retrieval: Resolved an issue where API calls to retrieve a subaccount’s phone numbers were returning a 401 error.
Fixed: Missing Defaults for New Subaccounts: Agency-level limits and defaults are now correctly applied when creating a new subaccount via the API.
Improvements You’ll Notice
Better Knowledge Bases: Faster and more accurate retrieval.
Krisp Noise-Cancellation: Krisp is now enabled by default for all calls (excluding widgets), providing crystal clear audio clarity.
Custom Actions Documentation: Updated documentation is now available for building and integrating custom actions (Docs)
“Before the Call” Actions: These now trigger correctly, ensuring pre-call workflows execute as expected.
ElevenLabs Controls: Specify delivery, pronunciation, and emotion using ElevenLabs controls in the speech section of the custom action panel.
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