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AssemblyAI

Verified

AI models for accurate speech recognition

San Francisco, United States Founded 2017
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NeuronScore 47/100
Total Raised $78M 2 rounds
Valuation $500M
Stage Series B Sep 2022
Team 100-200 since 2017
About AssemblyAI

AssemblyAI provides state-of-the-art speech AI models via API for transcription, speaker diarisation, sentiment analysis, and topic detection in audio and video. Its Universal-2 model sets accuracy benchmarks across noise, accents, and domains. Trusted by Zoom, Spotify, and 20,000+ developers, AssemblyAI's audio intelligence APIs enable products like meeting summarisation, content moderation, and call analytics.

NeuronScore Signal quality across funding, news, traction & verification
47 /100
Tracked
Funding momentum
20/30
Active deals
0/10
News
4/12
Traffic
3/8
Verified
20/20
Freshness
0/10
Agent-Ready Score 60/100 · checked May 3, 2026
MCP
Public API
Webhooks
OAuth2
SDK · TS
SDK · Py
SDKs: PythonTypeScriptJavaScriptGoJavaRuby
Funding History 2 rounds · $78M total
Sep 2022 Series B $50M
Jan 2022 Series A $28M
Alternatives 6 similar All →
FAQ
When was AssemblyAI founded?
AssemblyAI was founded in 2017 in San Francisco, United States.
How much funding has AssemblyAI raised?
AssemblyAI has raised $78M across 2 rounds — most recently a Series B in Sep 2022.
What is AssemblyAI's valuation?
Most recent disclosed valuation is $500M.
How much does AssemblyAI cost?
AssemblyAI pricing: Freemium.
Where is AssemblyAI headquartered?
AssemblyAI is headquartered in San Francisco, United States.
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