AssemblyAI · First-party API · STT

universal

DeprecatedDeprecated · removal date not published

Provider-recommended replacement: Use speech_models: ["universal-3-5-pro", "universal-2"]

AssemblyAI has deprecated universal. The replacement AssemblyAI recommends is Use speech_models: ["universal-3-5-pro", "universal-2"]. Source: assemblyai.com · Last checked Oct 23, 2026

Notice

Deprecated

Deprecated · removal date not published

AssemblyAI marks this model as deprecated. No removal date is published in this notice. New sign-ups, and accounts that have not used Universal-3 Pro in the last 7 days.

Hosting route
First-party API
Affected scope
New sign-ups, and accounts that have not used Universal-3 Pro in the last 7 days
Replacement
Use speech_models: ["universal-3-5-pro", "universal-2"]
Announced
Jul 10, 2026
First seen by ModelClock
Oct 23, 2026

What the provider published

assemblyai.com ↗

# Deprecated: universal-3-pro and universal for New and Inactive Accounts

New sign-ups, and accounts that have not used Universal-3 Pro in the last 7 days, can no longer request universal-3-pro or universal in speech_models . These requests return an error:…

Read more

New sign-ups, and accounts that have not used Universal-3 Pro in the last 7 days, can no longer request universal-3-pro or universal in speech_models. These requests return an error: The universal-3-pro speech model(s) have been deprecated. Use speech_models: ["universal-3-5-pro", "universal-2"] instead. Accounts actively using Universal-3 Pro keep access until the August 7 default switch. Read the docs on selecting a speech model →

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