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Synthflow
Synthflow is a voice AI platform that automates inbound and outbound enterprise phone calls.
Synthflow is a voice AI platform designed for enterprise call automation. It allows organizations to build, evaluate, launch, and monitor custom AI voice agents that handle sales and support phone calls. Users design workflows using a visual flow builder, test interactions automatically in a test center, and deploy agents via native or custom telephony networks. The platform includes features like real-time monitoring, auto-QA, multi-agent subflows, and data fine-tuning. It integrates with enterprise systems such as Cisco, Avaya, Genesys, and RingCentral to fit existing tech stacks.
Synthflow at a glance
- Best for: Support, Sales
- Runs on: Web, API
- Pricing: Enterprise custom pricing based on call volume, telephony, integrations, security, and launch support.
- Released: March 2023
- Category: AI audio tool
- Website: synthflow.ai
Key features
- Visual Flow Designer for building voice logic
- Automated testing in the Test Center
- In-house telephony with sub-100 ms latency
- Real-time monitoring and auto-QA
- Multi-agent system with modular subflows
- Custom carrier and SIP trunk connections
- Data fine-tuning using past calls
Use it for
- Automating enterprise customer support calls
- Scaling outbound sales calls
- Managing high-volume call workflows
Alternatives to Synthflow
- NovaSynth — Tests voice agents on real calls and validates fixes automatically.
- Parloa — Enterprise customer service agents built without specialists and scaled securely.
- Harmony AI — Deploys revenue-trained voice agents with sub-second response times.
- Cald.ai — It uses advanced LLMs and speech models to deliver human-like, low-latency phone interactions.
- PolyAI — Proprietary models built specifically for complex enterprise conversations.
- AICaller.io — It uses ultra-realistic voices and integrates with over 6,000 applications.
- Bland AI — Runs entirely on your own infrastructure with sub-second latency and enterprise compliance.
- Patter — Connects AI agents to phone calls in four lines of code with sub-500ms latency.
- Retell AI — It handles phone calls with low-latency responsiveness and high workflow accuracy.
- IntellAgents — Unifies inbound calls, outbound calls, and social channels into one knowledge base.
- Comcent — Hosted voice infrastructure with unlimited seats and your own SIP trunk.
- Vapi — Provides scalable orchestration for voice AI agents with sub-500ms latency.
All Synthflow alternatives