Top Retell AI Alternatives & Direct Competitors (2026) — What They Do, Pricing & Launch Video Breakdowns

What Retell AI does: Retell AI is a developer platform for building, testing, and deploying human-like conversational AI phone and WebRTC voice agents with sub-800ms turn-taking, SIP trunking, and HIPAA/SOC2 compliance.

Top Vetted Retell AI Alternatives & Competitors Comparison Matrix

RankCompetitorCategoryPricingWhat They DoProfile & Alternatives
#1ElevenLabsVoice, Speech, Music & SFX AIFree Tier · Starter $5/mo · Creator $22/mo · EnterpriseElevenLabs is the leading generative voice, speech-to-speech, and conversational audio AI platform. Its Eleven Realtime model delivers sub-second expressive speech-to-speech voice agents, multilingual dubbing, voice cloning, and text-to-SFX sound design.Profile (21 Videos) | ElevenLabs Alternatives | Website →
#2SonioxVoice, Speech, Music & SFX AIPay-As-You-Go API · Enterprise On-PremSoniox builds ultra-low-latency, high-accuracy multilingual speech recognition (STT) and real-time voice intelligence models engineered for noisy environments, domain-specific terminology, and live voice agents.Profile (6 Videos) | Soniox Alternatives | Website →
#3DeepgramVoice, Speech, Music & SFX AI$200 Free Credit · Pay-As-You-Go STT & TTS API · EnterpriseDeepgram builds enterprise speech-to-text (Nova-3), text-to-speech (Aura), and voice agent APIs engineered for high throughput, low latency, and custom domain keyterm accuracy.Profile (6 Videos) | Deepgram Alternatives | Website →
#4Inworld AIVoice, Speech, Music & SFX AIPay-As-You-Go API · Studio & Enterprise Volume TiersInworld AI builds real-time speech synthesis (Inworld Realtime TTS-2) and character intelligence infrastructure engineered for low-latency gaming, interactive consumer apps, and multi-character narration at scale.Profile (4 Videos) | Inworld AI Alternatives | Website →
#5OpenAIFrontier LLMs & Answer EnginesFree Tier · ChatGPT Plus $20/mo · Pro $200/mo · API Usage-BasedOpenAI builds frontier multimodal AI models and autonomous computer-use systems, including GPT-6 Astra, Codex autonomous software engineering agents, Dots workspace intelligence, and Sora generative video models.Profile (58 Videos) | OpenAI Alternatives | Website →
#6MireloVoice, Speech, Music & SFX AIFree Studio Trial · Creator & Pro API PlansMirelo is a frame-accurate video-to-audio and AI sound design platform. It analyzes silent video renders (UI animations, 3D product shots, game footage) and synthesizes synchronized foley, whooshes, mechanical clicks, and musical stems.Profile (6 Videos) | Mirelo Alternatives | Website →

Competing Startup Launch Video Breakdowns vs. Retell AI (12 Verified Ships)