New features, fixes, and API updates, shipped continuously.
Meet our Advanced Synthflow LLM, the strongest reasoning model in the Synthflow family. It handles complex logic and long prompts, so agents with deep branching, detailed conditions, and long instructions stay accurate.
Use it when your prompt has outgrown Synthflow LLM, which stays the default.
Subaccount usage counters can now be reset. Set minutes_used to 0 on PUT /subaccounts/:subaccount_id and the customer’s cycle starts fresh, so you can run their subscription on your own billing schedule.
You can now route inbound 8x8 Contact Center calls to Synthflow AI agents. Import an 8x8 number in Synthflow to receive a generated 12-digit routing identifier, then use it in your 8x8 Forward to External IVR flow. See the setup guide for instructions.
You can now import Five9 and RingCX numbers through the POST /custom-numbers endpoint.
For all other providers on that endpoint, termination_uri (SIP domain) is now required. Five9, RingCX, and Zoom are not affected; Synthflow still sets their SIP domain automatically.
The analytics dashboard now covers the subaccounts you manage. Set the All accounts filter to compare total minutes, calls, and average duration across every subaccount, then select one to open its full dashboard in place.
You can now pin conversations in Aurora. Pinned threads stay at the top of the list, so the work you keep returning to is always in reach.
Synthflow’s official Claude connector and plugin are now live. Use Synthflow’s capabilities from Claude, Claude Code, or Cowork in plain language.
The connector links Claude to your workspace. The plugin adds guided call and prompt reviews. See the guide to get started.
Phone numbers now support outbound SIP registration via the API. Set it when you import a number, or update an existing one.
On September 15, 2026, Synthflow will discontinue custom pricing plans. This affects partners who have connected their Stripe account and resell minutes to their customers: from that date, Synthflow will no longer bill subaccount minutes through Stripe on your behalf, and subscriptions created through custom pricing plans will stop working. Your own Synthflow subscription is not affected.
To keep your customers running without interruption, migrate their subscriptions to your own billing before September 15. The migration guide explains exactly what changes and how to complete the migration.
Custom actions and individual MCP tools can now play background audio while they run, giving callers feedback during slower requests.
The Synthflow status page has moved to a new platform that provides more reliable incident reporting and status updates. The address remains the same, so existing bookmarks and links continue to work.
Email subscriptions have been migrated automatically: if you currently receive status updates by email, no action is required. RSS subscriptions cannot be migrated. If you follow the status page by RSS, resubscribe on the status page to keep receiving updates.
The Five9 Handoff action returns a call from your agent to your Five9 workflow, passing routing context as X-Headers on the SIP BYE. The Five9 integration guide covers the full AI Agent Connect setup, from onboarding to the data exchanged in each direction.
Available on the Enterprise plan. Contact your account manager to activate it.
You can now rename conversations in Aurora. Give each thread a clear, descriptive name to keep your work organized.