Otter.ai vs ElevenLabs
Side-by-side comparison of AI visibility scores, market position, and capabilities
AI meeting transcription platform hit $100M ARR in Mar 2025; 25M+ users; $500K revenue per employee; launched enterprise API and MCP server in Oct 2025
About
Otter.ai is an AI meeting intelligence platform founded in 2016 by Sam Liang and Yun Fu in Mountain View, California. The company was built on the insight that conversations and meetings are the most information-dense and least captured medium in the modern workplace — and that real-time AI transcription could transform how teams capture, search, and act on spoken knowledge. Otter's initial product was a live transcription application that produced searchable, speaker-attributed transcripts of meetings, calls, and voice notes with significantly higher accuracy than existing dictation tools.\n\nOtter's platform has evolved into a full meeting intelligence system that includes real-time transcription, AI-generated meeting summaries, action item extraction, a meeting chatbot for querying transcript content, and integrations with Zoom, Google Meet, and Microsoft Teams. Enterprise features include custom vocabulary, team workspaces, compliance-grade data retention, and an API for embedding Otter's transcription capabilities into third-party applications. In October 2025, Otter launched an enterprise API and an MCP (Model Context Protocol) server, enabling AI agents to query and act on meeting intelligence programmatically.\n\nOtter.ai hit $100M ARR in March 2025, a milestone achieved with 25M+ users and a notably lean cost structure of approximately $500K in revenue per employee. The company has remained privately held and has not disclosed a primary capital raise, operating profitably at scale. Otter competes with Fireflies.ai, Fathom, and Zoom AI Companion in the meeting intelligence market, with its long operating history, transcript search quality, and enterprise integrations as primary differentiators.
$500M Series D at $11B valuation (Feb 2026) — largest voice AI funding round ever. $330M ARR; 1M+ developers using the API. Enterprise customers: Deutsche Telekom, Revolut, Meta, Salesforce. Voices in 32 languages; real-time cloning from 1 second of audio.
About
ElevenLabs was founded in 2022 by Piotr Dabkowski and Mati Staniszewski, two former Google and Palantir engineers who set out to break the language barrier using AI voice technology. The company specializes in AI-powered voice synthesis, cloning, and dubbing, enabling developers and enterprises to generate human-quality speech in over 30 languages. Its core technology combines deep learning models trained on massive speech datasets to produce natural-sounding voices indistinguishable from real humans.\n\nElevenLabs offers a suite of products including its flagship text-to-speech API, voice cloning tools, and an AI dubbing platform that localizes video content while preserving the speaker's original voice. Its products target a broad audience—from indie developers building audio apps to large enterprises deploying voice interfaces at scale. Key differentiators include ultra-low latency streaming synthesis, fine-grained voice customization, and a growing library of pre-built AI voices across accents and styles.\n\nElevenLabs has grown rapidly, surpassing $330M in annualized revenue and serving over 1 million developers. Enterprise clients include Deutsche Telekom, Spotify, and leading media companies. In February 2026, the company closed a $500M Series D at an $11B valuation, cementing its position as the market leader in AI voice. Its APIs power podcasts, audiobooks, video games, and customer service bots worldwide, making ElevenLabs the default infrastructure layer for AI-generated audio.
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