Synthflow AI
AI voice agents for business phone calls, now sold on enterprise contracts
Overview
Synthflow AI is a Berlin-based platform for AI voice agents that handle inbound and outbound calls — bookings, lead qualification, support — plus chat on WhatsApp and SMS, with in-house telephony, CRM integrations and 30+ languages. Enterprise contracts from $30,000 a year.
Pricing
Pricing shown for reference only. These figures reflect RECATOOLS research as of 1 Oct 2026 and may be out of date or incomplete. This is not financial or purchasing advice — always confirm the current price on the provider’s official website before making any decision.
- Enterprise SLA and support terms
- Native telephony, SIP trunking or approved telephony
- CRM, contact-centre and API integrations
- Implementation, testing and launch support
Use cases
What you can produce with Synthflow AI
- AI voice agents for inbound and outbound calls
- Chat agents on WhatsApp, web chat and SMS
- In-house telephony and SIP trunking
- Call-simulation test centre
- CRM and contact-centre integrations
- SOC 2, HIPAA, PCI DSS and GDPR compliance
ASEAN Perspective
Synthflow AI in Southeast Asia
Synthflow confirms support for key ASEAN-region languages including Indonesian, Malay, Thai, Vietnamese, Mandarin, and Hindi, making it technically viable for multilingual contact-center deployments across Southeast Asia. However, the platform is headquartered in Berlin with a stated expansion focus on the US market, and no APAC-specific partnerships, local telephony carriers, or regional data-residency commitments are publicly documented as of mid-2026. Pricing in USD and support timezones aligned to Europe and the US may create friction for ASEAN enterprise buyers who require local SLAs or in-region data handling. Teams in Singapore, Malaysia, or Indonesia should verify data-residency requirements against internal compliance policies before committing at enterprise scale.
Synthflow is a capable platform for automating business phone calls, with its own telephony, a call-simulation test centre, broad contact-centre integrations and support for Thai, Vietnamese, Indonesian and Malay. It has moved firmly upmarket: public pricing now starts at $30,000 a year on enterprise contracts, and the self-serve per-minute rates once associated with it are gone. Its latency and "only" claims are its own. Worth shortlisting for businesses with high call volumes; small businesses will find cheaper self-serve voice agents elsewhere.
What we found
Synthflow AI is a platform for building AI voice agents that answer and make phone calls for businesses — booking appointments, qualifying leads, handling support and routing calls — and, since 2026, chat agents on WhatsApp, web chat and SMS. Teams design agents with workflows, prompts and knowledge sources; choose models including OpenAI's GPT family or Synthflow's own LLM, speech-to-text and text-to-speech, or ElevenLabs voices through Synthflow or with their own key; and test them in a centre that simulates hundreds of calls. It integrates with Salesforce, HubSpot, GoHighLevel, Five9, Genesys Cloud, RingCentral, 8x8 and Zendesk, supports agencies with white-labelling and Stripe rebilling, and calls itself the only end-to-end voice AI platform with in-house telephony, claiming latency under 100 milliseconds; those are its own claims. It supports more than 30 languages, including Thai, Vietnamese, Indonesian and Malay, says it holds SOC 2, HIPAA, PCI DSS and GDPR certifications, and bills calls per second.
AgentFlow AI GmbH, which runs Synthflow, was founded in Berlin in 2023 by Hakob Astabatsyan, its chief executive, Albert Astabatsyan and Sassun Mirzakhan-Saky, and has about 70 employees. It raised a $20 million Series A led by Accel in June 2025, for $30 million in total, and in 2026 announced partnerships with 8x8 and AVANT.
Synthflow has moved to sales-led pricing. Its pricing page lists only Enterprise contracts, starting at $30,000 a year and scoped by call volume, concurrency and telephony, with implementation, SLAs and security reviews included; its documentation says older workspaces may still show legacy plan names. The homepage FAQ still describes building agents before paying for usage at launch, but no per-minute rate is published, and per-minute and monthly prices quoted for Synthflow elsewhere no longer appear on its site.
We could not read independent review sites; Synthflow itself cites a 4.5 rating from more than 1,000 G2 reviews. It suits mid-size and large businesses automating high call volumes.
Compiled by RECATOOLS from public sources: vendor documentation and pricing, code repositories and published reporting.
Notable facts
- Synthflow was co-founded by siblings Hakob and Albert Astabatsyan, both veterans of BCG and Rocket Internet, who closed a $30M total raise within roughly two years of launch.
- The BELL Framework (Build, Evaluate, Launch, Learn), launched December 2025, lets teams simulate hundreds of calls and auto-score agent accuracy before a single live call is placed.
- A single BPO client deployed 40+ branded voice agents in under 60 days, automating over 600,000 calls per month — all without writing any code.
- Synthflow's voice synthesis leverages ElevenLabs Turbo v2 and supports 40+ languages, including eight ASEAN-region languages: Mandarin, Japanese, Korean, Indonesian, Malay, Thai, Vietnamese, and Hindi.
Frequently asked questions
About this listing
This entry was compiled from publicly available data including Synthflow AI's official website, press releases, documentation, and reputable third-party publications. RECATOOLS is not affiliated with Synthflow AI unless explicitly stated.
Third-party AI tools update their pricing, features, availability, and policies frequently. Information here may be outdated by the time you read this — we make reasonable efforts to keep listings current, but cannot guarantee absolute accuracy.
For the latest details, please refer to Synthflow AI directly →
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