# Voice AI APIs: compare vendors VoiceAgents lists 39 voice AI APIs vendors. Each listing links to its source. 39 voice AI vendors. Also on the [web page](https://voiceagents.fyi/category/voice-ai-apis). ## Voice AI vendors 1. [Gladia](https://voiceagents.fyi/fr/global/online/gladia.md), Voice AI APIs, Online: Speech-to-text API that transcribes and enriches conversations for voice products. 2. [Rime](https://voiceagents.fyi/us/global/online/rime.md), Voice AI APIs, Online: Text-to-speech voice models built for real-time conversations, with 600+ voices, 50+ languages and sub-100ms latency. 3. [Bland AI](https://voiceagents.fyi/us/global/online/bland-ai.md), Voice agent platforms, Online: Build, deploy, and monitor AI voice agents that sound human. Self-hosted models, sub-second latency, and enterprise compliance. 4. [Cartesia](https://voiceagents.fyi/us/global/online/cartesia.md), Voice AI APIs, Online: Cartesia builds real-time voice AI: production voice agents, lifelike text-to-speech, and accurate speech-to-text in 44 languages. 5. [Dasha](https://voiceagents.fyi/us/global/online/dasha.md), Voice agent platforms, Online: Developer platform to create voice and text AI agents for telephony, WebRTC and text channels with sub-second latency. 6. [LiveKit](https://voiceagents.fyi/us/global/online/livekit.md), Open-source voice frameworks, Online: An open source framework and developer platform for building, testing, deploying, scaling, and observing agents in production. 7. [Soniox](https://voiceagents.fyi/us/global/online/soniox.md), Voice AI APIs, Online: Speech AI API for real-time speech-to-text, text-to-speech and translation in 60+ languages. 8. [Speechmatics](https://voiceagents.fyi/gb/global/online/speechmatics.md), Voice AI APIs, Online: Speechmatics builds speech-to-text APIs for real conversations, not clean demos. Build Voice AI that understands accents, multiple speakers, and multilingual… 9. [Telnyx](https://voiceagents.fyi/us/global/online/telnyx.md), Voice AI APIs, Online: Licensed carrier offering voice AI agent infrastructure, telephony, SIP trunking and speech APIs on its own private network. 10. [Deepgram](https://voiceagents.fyi/us/global/online/deepgram.md), Voice AI APIs, Online: Power enterprise voice solutions with Deepgram’s Speech-to-Text, Text-to-Speech, and Voice Agent APIs. Real-time, accurate, and built for scale. 11. [ElevenLabs](https://voiceagents.fyi/us/global/online/elevenlabs.md), Voice AI APIs, Online: AI voice generator and voice agents platform with 17,500+ voices in 90+ languages, offered via APIs and SDKs. 12. [Gemini Live API](https://voiceagents.fyi/us/global/online/gemini-live-api.md), Voice AI APIs, Online: Google's Gemini Live API for low-latency, real-time voice and video interactions with Gemini models. 13. [Inworld AI](https://voiceagents.fyi/us/global/online/inworld-ai.md), Voice AI APIs, Online: Realtime voice models (TTS) and LLM inference for consumer applications and voice agents. 14. [Retell AI](https://voiceagents.fyi/us/global/online/retell-ai.md), Voice agent platforms, Online: Platform to deploy voice AI agents that answer, qualify and book on real phone calls; states HIPAA and SOC 2 compliance. 15. [SignalWire](https://voiceagents.fyi/us/global/online/signalwire.md), Voice AI APIs, Online: Build AI voice agents, contact centers, and unified communications on one programmable platform. One control plane, no vendor stitching. 16. [Bandwidth](https://voiceagents.fyi/us/global/online/bandwidth.md), Voice AI APIs, Online: Enterprise communications platform with voice, messaging and emergency APIs, including infrastructure for voice AI. 17. [Gnani.ai](https://voiceagents.fyi/in/global/online/gnani-ai.md), Contact-centre voice AI, Online: Builds enterprise AI agents, ASR, TTS, LLM and voice biometrics in 40+ languages. 18. [Phonic](https://voiceagents.fyi/us/global/online/phonic.md), Voice AI APIs, Online: Speech-to-speech models for building natural-sounding voice agents. 19. [Plivo](https://voiceagents.fyi/us/global/online/plivo.md), Voice AI APIs, Online: Voice and messaging APIs plus no-code builder and APIs to deploy AI voice agents. 20. [Smallest.ai](https://voiceagents.fyi/us/global/online/smallest-ai.md), Voice AI APIs, Online: Voice AI platform offering text-to-speech, speech-to-text and voice agents for enterprises. 21. [Twilio](https://voiceagents.fyi/us/global/online/twilio.md), Voice AI APIs, Online: Communications APIs for voice, SMS, RCS and email, plus ConversationRelay for building voice AI agents. 22. [Ultravox](https://voiceagents.fyi/us/global/online/ultravox.md), Voice AI APIs, Online: Ultravox is a real-time voice AI infrastructure layer that powers fast, natural, and scalable voice agents. 23. [Voice.ai](https://voiceagents.fyi/us/global/online/voice-ai.md), Voice AI APIs, Online: Voice AI platform with voice agents, text-to-speech and voice changer, available via APIs and SDKs. 24. [Agora](https://voiceagents.fyi/us/global/online/agora.md), Voice AI APIs, Online: Real-time voice, video and conversational AI APIs, including a conversational AI engine for voice agents. 25. [AssemblyAI](https://voiceagents.fyi/us/global/online/assemblyai.md), Voice AI APIs, Online: Speech AI models and APIs to transcribe and understand speech, including real-time streaming speech-to-text for voice agents. 26. [Daily](https://voiceagents.fyi/us/global/online/daily.md), Voice AI APIs, Online: Realtime voice, video and AI infrastructure for developers; the team behind the open-source Pipecat framework and Pipecat Cloud. 27. [Neuphonic](https://voiceagents.fyi/gb/global/online/neuphonic.md), Voice AI APIs, Online: Voice AI company providing low-latency text-to-speech and voice agent technology. 28. [Rev AI](https://voiceagents.fyi/us/global/online/rev-ai.md), Voice AI APIs, Online: Developer-first speech-to-text API from Rev. 29. [Exotel](https://voiceagents.fyi/in/global/online/exotel.md), Contact-centre voice AI, Online: Customer engagement platform with cloud telephony, contact center and voice AI solutions for enterprises. 30. [FPT.AI](https://voiceagents.fyi/vn/global/online/fpt-ai.md), Contact-centre voice AI, Online: Vietnamese AI platform offering FPT AI Voice Agent, text-to-speech (Voice Maker) and other enterprise AI products. 31. [Hume AI](https://voiceagents.fyi/us/global/online/hume-ai.md), Voice AI APIs, Online: Voice AI company offering expressive voice models and evaluation tools for building emotionally intelligent voice AI. 32. [Infobip](https://voiceagents.fyi/gb/global/online/infobip.md), Voice AI APIs, Online: Cloud communications platform with APIs for SMS, voice and messaging channels plus voice AI agents. 33. [Millis AI](https://voiceagents.fyi/us/global/online/millis-ai.md), Voice agent platforms, Online: Platform to create LLM-based voice agents and voice applications with low latency. 34. [Picovoice](https://voiceagents.fyi/ca/global/online/picovoice.md), Voice AI APIs, Online: Production-grade on-device AI SDKs for voice, language, and vision. STT, wake word, TTS, translation, OCR, and more. Runs on mobile, web, desktop, and embedded. 35. [Vapi](https://voiceagents.fyi/us/global/online/vapi.md), Voice agent platforms, Online: Developer platform to build, test and deploy conversational voice AI agents. 36. [Voicegain](https://voiceagents.fyi/us/global/online/voicegain.md), Voice AI APIs, Online: Voice AI platform and pre-built Voice AI suite (Casey) for healthcare payers; deployable in cloud, VPC or on-prem. 37. [AmiVoice (Advanced Media)](https://voiceagents.fyi/jp/global/online/amivoice-advanced-media.md), Voice AI APIs, Online: Japanese speech recognition company behind AmiVoice, offering transcription and voice input for call centers, healthcare and other industries. 38. [SoundHound AI](https://voiceagents.fyi/us/global/online/soundhound-ai.md), Hospitality voice AI, Online: SoundHound AI's OASYS platform powers voice-native AI agents for service, operations and commerce, including restaurant ordering. 39. [Fish Audio](https://voiceagents.fyi/us/global/online/fish-audio.md), Voice AI APIs, Online: AI text-to-speech and voice cloning platform with APIs. ## Voice AI APIs by city - [Online, Global](https://voiceagents.fyi/us/global/online/category/voice-ai-apis.md): 30 voice AI vendors - [Online, Global](https://voiceagents.fyi/gb/global/online/category/voice-ai-apis.md): 3 voice AI vendors - [Online, Global](https://voiceagents.fyi/in/global/online/category/voice-ai-apis.md): 2 voice AI vendors - [Online, Global](https://voiceagents.fyi/ca/global/online/category/voice-ai-apis.md): 1 voice AI vendor - [Online, Global](https://voiceagents.fyi/fr/global/online/category/voice-ai-apis.md): 1 voice AI vendor - [Online, Global](https://voiceagents.fyi/jp/global/online/category/voice-ai-apis.md): 1 voice AI vendor - [Online, Global](https://voiceagents.fyi/vn/global/online/category/voice-ai-apis.md): 1 voice AI vendor ## Related categories - [Contact-centre voice AI](https://voiceagents.fyi/category/contact-center-voice-ai.md): 65 voice AI vendors - [AI receptionists](https://voiceagents.fyi/category/ai-receptionists.md): 54 voice AI vendors - [Voice agent platforms](https://voiceagents.fyi/category/voice-agent-platforms.md): 40 voice AI vendors - [Outbound and sales calling](https://voiceagents.fyi/category/outbound-sales-calling.md): 27 voice AI vendors - [Healthcare voice AI](https://voiceagents.fyi/category/healthcare-voice-ai.md): 25 voice AI vendors - [Hospitality voice AI](https://voiceagents.fyi/category/hospitality-voice-ai.md): 11 voice AI vendors - [Open-source voice frameworks](https://voiceagents.fyi/category/open-source-voice-frameworks.md): 5 voice AI vendors