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.

Synthflow Academy: AI Trends & Challenges: Food Industry Edition

Everyone wants a bite of the food industry — but applying AI at scale in one of the most operationally complex sectors is a tough dish to serve. From volatile supply chains to fragmented workflows and razor-thin margins, the food sector is one of the hardest environments to automate. Yet companies like Choco and Synthflow are finding ways to bring AI into the heart of physical operations. Join Synthflow AI CEO Hakob Astabatsyan and Daniel Khachab, CEO of Choco, for a conversation on how AI is tackling real challenges in the food system — and what it takes to make it all work. 📅 Date: Thursday, April 17 ⏰ Time: 12 PM EST Register now