Amazon Alexa
Amazon Alexa is a virtual assistant developed by Amazon, first introduced on November 6, 2014, alongside the Amazon Echo smart speaker, and rebuilt in 2025 as a generative AI assistant called Alexa+ that runs…
Voice AI
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Showing 1-21 of 21 articles
AssemblyAI
AssemblyAI is an American Speech AI company, founded in 2017 by Dylan Fox in San Francisco, that trains its own automatic speech recognition models and sells them to developers and enterprises through a single…
Bland AI
Bland AI is an enterprise voice AI platform that enables businesses to deploy, manage, and scale AI-powered phone agents for inbound and outbound calling.
Cartesia
Cartesia is a San Francisco-based AI company focused on real-time voice synthesis, speech recognition, and state space model (SSM) research.
Deepgram
Deepgram is an American voice artificial intelligence company, founded in 2015 and headquartered in San Francisco, that builds proprietary deep learning models for speech recognition, text-to-speech synthesis…
ElevenLabs
ElevenLabs is a voice and audio artificial intelligence company that builds text-to-speech AI, voice cloning, AI dubbing, generative sound effects, music synthesis, and conversational voice agent technology.
Gladia
Gladia is a French artificial-intelligence company that builds audio infrastructure for developers and voice-product teams, centered on a speech-to-text (transcription) API.
HeyGen
HeyGen is an American artificial intelligence company headquartered in Los Angeles, California, that develops AI-powered video generation software specializing in digital avatars, voice cloning, and…
Hume AI
Hume AI is a New York-based artificial intelligence research company and API platform, founded in March 2021 by Alan Cowen, that builds "emotionally intelligent" voice AI: models trained to measure human…
Inworld AI
Inworld AI is an American artificial intelligence company headquartered in Mountain View, California, that builds real-time voice and character AI infrastructure for games, interactive applications, and voice…
PlayHT
PlayHT, later rebranded PlayAI (and reachable at play.ht and play.ai), was an American generative AI voice company that built text-to-speech models, voice cloning tools, and a platform for conversational AI…
PolyAI
PolyAI is a British enterprise voice AI company founded in 2017 that builds autonomous phone agents for large-scale contact centers.
Resemble AI
Resemble AI is a generative voice and AI security company based in San Francisco, California, and originally founded in Toronto, Canada.
Retell AI
Retell AI is a voice AI agent platform that enables businesses to build, deploy, and manage AI-powered phone agents for inbound and outbound call automation.
Rime (company)
Rime (also styled Rime Labs, and reachable at rime.ai) is an American artificial intelligence company that builds text-to-speech and spoken-language models tuned specifically for business voice agents…
Sesame (AI company)
Sesame (formally Sesame AI Labs) is a San Francisco-based artificial intelligence company founded in June 2023, best known for developing the Conversational Speech Model (CSM) and the Maya and Miles voice…
Sindarin
Sindarin (stylized sindarin. and operating as Sindarin Persona) is a small American startup building a real-time conversational voice AI platform for developers.
Siri
Siri is the voice assistant developed by Apple Inc. that launched on the iPhone 4S on October 14, 2011, making it the first mainstream voice assistant shipped on a smartphone .
Speechmatics
Speechmatics is a British artificial intelligence company that develops automatic speech recognition (ASR) and voice AI technology for enterprise customers.
Tavus
Tavus is an American generative AI research company headquartered in San Francisco, California, that develops video generation models and real-time conversational video technology.
Vapi
Vapi is a voice AI orchestration platform that lets software developers build, deploy, and scale AI phone agents through a programmable API.