Wispr AI
Category: Voice / Speech AI
An AI-powered voice interface that converts natural speech into perfectly formatted text and commands across any application by understanding the user's on-screen context. Supports over 100 languages. Wispr AI was founded in 2021. The company is led by Tanay Kothari. Based in San Francisco, United States. Team size: 11-50. Total funding raised: $81.0M. Latest round: Series A Extension ($25.0M, Nov 2025). Key investors include ["Notable Capital", "Menlo Ventures", "NEA", "8VC", "Flight Fund", "Kenneth Schlenker (CEO, Opal)", "Evan Sharp (Founder, Pinterest)", "Henry Ward (CEO, Carta)", "Flo Crivelli (CEO, Lindy)"].
- Founded
- 2021
- Headquarters
- San Francisco, United States
- Team size
- 11-50
- Total funding
- $81.0M
Value proposition
Enables writing 3x faster than typing by combining high-accuracy dictation with context awareness that adapts formatting to the active application.
Products and solutions
["Wispr Flow for Mac (Silicon Optimized)","Wispr Flow for Windows","Wispr Flow for iOS","Flow for Teams (Enterprise)"]
Unique value
Uses 'Context Awareness' to read the active window/application, allowing it to auto-format content (e.g., code vs. email) and remove filler words in real-time, unlike standard transcription tools.
Target customer
Knowledge workers, developers, writers, students, and accessibility users (ADHD, RSI)
Industries served
["Productivity Software","Enterprise SaaS","Accessibility Technology","Developer Tools","Education"]
Technology advantage
Successfully pivoted from 'silent speech' hardware to a software-only 'Voice OS' model, leveraging proprietary auto-edit logic and LLMs to deliver immediate value without hardware friction.
How they differentiate
Context-aware 'Voice OS' that adapts formatting to the active application (e.g., code vs. email) and style, unlike standard transcription tools.
Main competitors
["Superwhisper","Nuance Dragon","Otter.ai"]
Key partnerships
["NEA (Investor)","Menlo Ventures (Investor)","Notable Capital (Investor)","8VC (Investor)"]
Notable customers
["Fortune 500 Enterprise Clients (Undisclosed)","Individual Prosumers (Doctors, Developers)"]
Major milestones
["Pivoted from hardware to Wispr Flow software in 2024","Raised $12M Series A led by Menlo Ventures in Oct 2024","Secured $25M Series A Extension led by Notable Capital in Nov 2025"]
Growth metrics
40% Month-over-Month growth in users and ARR; 270 Fortune 500 companies signed.
Market positioning
AI-native Voice Operating System replacing keyboards for knowledge workers
Geographic focus
North America, Global (English markets)
Patents and IP
Holds patents for 'silent speech interfaces' and 'wearable neural signal detection' (EMG) from its hardware origins.
About Tanay Kothari
Co-Founder & CEO of Wispr AI; previously Head of Engineering & Product at Cerebra Technologies; Founder of FeatherX (acquired); Research in AI/NLP at Stanford University.
Official website: https://wisprflow.ai