For developers building voice and conversation-intelligence products, AssemblyAI is a speech-to-text API that layers audio intelligence and language-model analysis on top of raw transcripts, so builders can ship transcription-powered features without training their own models.

Presence & Market Position

32
SOV Score

#29 of 113
Traditional SaaS Going Headless

▲ 11 60-day move

Measures earned, engagement-weighted share of voice across the GTM voices panel. Methodology →

AssemblyAI is building itself as the transcription and audio-intelligence layer that other AI products sit on top of, rather than a destination brand in its own right — an API that meeting-recording, video-editing, call-intelligence, and vertical AI tools plug into instead of training their own speech models. The conversation about it skews toward builders: model-release news for new speech-to-text tiers, practitioner accounts of swapping it into high-stakes transcription work in clinical documentation, M&A due diligence, and meeting intelligence, and inclusion in roundups of the infrastructure choices behind newer AI-native support and voice-agent stacks. Mentions have been climbing, with a broadening set of builders picking it up as a default choice for production audio.

Related brands
Customers

Granola, Grain, Veed, Kapwing, CallRail, Dovetail, Nylas, Jiminny, Calabrio, Supernormal

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Business Profile

Founded in 2017, AssemblyAI has raised $113.1M and reported roughly $10.4M in ARR as of December 2024, against a last disclosed valuation near $300M. The company remains independent, with a global remote team spread across 16 countries and offices in New York and San Francisco. Its public self-description centers on speech recognition research, framing its mission around building Voice AI that is accurate and safe. Recent output shows a steady model-release cadence: Universal-3.5 Pro variants for realtime and async transcription shipped weeks apart, alongside recognition as a G2 Leader in voice recognition.

Founded
2017
Employees
101
Funding
$113.1M
ARR
$10.4M claimed (Dec 2024)
Valuation
~$300M (Dec 2023)
Status
Independent
Scale stage
Growth
GTM Categories
GTM Developer ToolsCommunication Infrastructure
Key people
Founder & CEO, AssemblyAI

Agent Readiness

84A
Agent Readiness
APIMCPSDKCLI

Measures how easily your agents can build on it — API, MCP, CLI, SDK, docs depth. Methodology →

AssemblyAI's agent build-out centers on infrastructure for others' voice agents: a Voice Agent API that handles speech recognition, LLM-driven response generation, and voice output over a single WebSocket connection, with turn-taking, barge-in, and tool calling built in. An LLM Gateway routes transcripts through outside model providers under one account. A documentation-facing MCP server lets tools such as Claude Code query the API reference directly, extending the same infrastructure-for-builders posture into the agent-tooling layer itself.

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