Best Voice AI Tools

Most AI voice systems look the same on the surface: a single Text-to-Speech model hidden behind an API. Easy to use, hard to customize, and nearly impossible to scale efficiently. CAMB.AI took a different approach. Built by Apple, Carnegie Mellon AI researchers, MARS8 is the first TTS family designed for production reality -not lab demos. Instead of forcing one-size-fits-all tradeoffs, MARS8 offers 4 architectures optimized for real-world use cases: 1. MARS-Flash: Sub-150ms TTFB for real-time agents. 2. MARS-Pro: Balanced speed and fidelity for dubbing and media. 3. MARS-Instruct: Fine-grained, director-level control for film production. 4. MARS-Nano: Ultra-efficient, 50M parameter model for on-device performance. MARS8 also changes the economics of Voice AI, moving from a “pay-per-character” pricing model to a compute-first approach, where developers can deploy on their own infrastructure across AWS, Google Cloud, Modal, Baseten & 25 more GPU compute platforms. Start building now!

Joy (from sasjoy.com) is an AI-powered answering service designed to modernize how businesses handle inbound phone calls — blending cutting-edge conversational AI with real human operators for the best of both worlds. Joy is a voice AI virtual receptionist that answers calls 24/7 with natural-sounding speech, captures messages, schedules appointments, handles FAQs, qualifies leads, and routes callers — all based on workflows you set up in its intuitive dashboard. If the AI can’t resolve a call, it seamlessly hands it off to a live human agent trained on the same script. Key Features: Hybrid AI + Human Model: Automates routine inquiries while live agents step in for complex or priority calls — giving callers a human touch whenever needed. 24/7 Availability: Always-on call handling ensures no missed opportunities — even outside business hours. Custom Workflows: Build and edit your call flows with a drag-and-drop editor — train Joy to ask the right questions and transfer the right information. CRM & Workflow Integrations: Sync call data to your existing systems like Salesforce, HubSpot, or Zapier-connected apps. Transcripts & Analytics: Review call recordings and transcripts in your portal to refine scripts and measure performance. Multilingual Support & Custom Voices: Joy can handle multiple languages and lets you choose voices that match your brand.