YCS17· AI· DevtoolsAssemblyAI
The best way to build Voice AI apps
ActiveChecked 18h ago
Founders
Not read from YC yet; the weekly run fills these in.
Same space
Competitors
Closest in what they build, same category.
SpeechlyW22Natural Language Understanding API for Speech that runs on deviceShared: developer tools, speech recognitionAcquired
PlayAIW23Our mission is to make Voice AI accessible and useful to all.Shared: apiAcquired
SpekoS26OpenRouter for Voice AI: one API, every call on the best speech modelShared: developer toolsActive
BoldVoiceS21Speech and accent coaching app for non-native English speakersShared: speech recognitionActive
Ocular AIW24Applied AI Data Research Lab Encoding Human Expertise into Machines…Shared: speech recognitionActive
Adjacent
Overlapping tags, a different niche.
DownlinkW24Make your LLMs 3x faster.Shared: developer tools, apiActive
Keyframe LabsX26Bring AI to life with the world's best interactive avatarsShared: developer tools, apiActive
AgentMailS25Email Inboxes for AI AgentsShared: developer tools, apiActive
QuicknodeW21Tools & infra to build and scale high-quality blockchain applications.Shared: developer tools, apiActive
WarrantS21Authorization and access control as a service.Shared: developer tools, apiAcquired
Also from S17 in AI
Batchmates in Summer 2017.
10 By 10S1710by10 is a unique marketplace in the recruiting agency industry for…Active
Cairns HealthS17Your voice. Your health. We care.Active
Cambridge Cancer GenomicsS17CCG.ai empowers clinicians to make personalised treatment strategies…Inactive
CandidatelyS17The digital storefront for staffing and recruiting teams.Active
Commissary Club (formerly 70 Million Jobs)S17First agentic AI-powered community for 1 billion people with criminal…Inactive
D-IDS17Enable creators and developers to generate realistic AI personasActive
About AssemblyAI
Today’s top Voice AI companies rely on AssemblyAI’s speech-to-text and speech understanding models to launch groundbreaking products fast and to scale with ease.
New York City, NY, USA; Remote
AssemblyAI: questions
Which YC batch was AssemblyAI in?
AssemblyAI was in Y Combinator's Summer 2017 batch (S17).
Is AssemblyAI still active?
Y Combinator lists AssemblyAI as active.
Where is AssemblyAI based?
AssemblyAI lists New York City, NY, USA; Remote as its location on YC's directory.
Not affiliated with Y Combinator. From YC's public directory. Logos via logo.dev; trademarks belong to their owners.