Voice AI is evolving from basic chatbots to agentic systems that can execute tasks directly on websites. The AI agent market is projected to reach $50.31 billion by 2030, with 40% of enterprise applications expected to use task-specific agents by 2026. This guide compares the top 5 platforms for 2026:

ElevenLabs - Best for realistic, emotionally expressive voices with 400+ integrations

Deepgram - Optimized for speed with <250ms latency and unified API

Vapi - Maximum flexibility for developers to mix and match AI models

Google Dialogflow - Enterprise-grade solution integrated with Google Cloud

Voiceflow - Visual, collaborative platform for team-based agent design

Each platform offers unique strengths depending on your priorities: voice quality, speed, flexibility, enterprise scale, or team collaboration.