Features
Visual drag-and-drop builder for AI workflows
Single-agent chatbots with RAG and tool calling
Multi-agent system orchestration
Human-in-the-loop review of agent actions
Execution traces and observability (Prometheus, OpenTelemetry)
Embedded chat widgets with customization
REST API for prediction and management
TypeScript and Python SDKs
100+ integrations with LLMs, embeddings, vector DBs
On-premises and cloud deployment options
Horizontal scaling with message queues and workers
Evaluation and metrics tools
Assistant API for custom agent configurations
Support for multiple data sources (PDF, TXT, CSV, SQL, etc.)
Community templates and examples
No-code visual workflow builder
Omnichannel deployment (web, phone, mobile)
Low-latency voice (500ms)
High throughput (300k messages/min)
Integrated prototyping and NLU modeling
Entry conditions for playbooks/workflows
Required variables for workflows
Organization-level usage breakdown
Voiceflow Core optimized model (May 2026)
Transcript filtering by workflow and tool