AssemblyAI · First-party API · STT

u3-rt-pro

Capability changeCapability change announced May 12, 2026

Capability change announced May 12, 2026 for u3-rt-pro on AssemblyAI. Source: assemblyai.com · Last checked Oct 23, 2026

Notice

Capability change

Capability change announced May 12, 2026

AssemblyAI documents a capability change: “How to use it { "speech_model" : "u3-rt-pro" , "interruption_delay" : 0 } Available on Universal-3 Pro Streaming (u3-rt-pro)”

Hosting route
First-party API
Affected scope
Not stated in the notice
Announced
May 12, 2026
First seen by ModelClock
Oct 21, 2026

What the provider published

assemblyai.com ↗

How to use it

{ "speech_model" : "u3-rt-pro" , "interruption_delay" : 0 }

  • Available on Universal-3 Pro Streaming (u3-rt-pro)

Read from the provider's text; the quote is the provider's exact lines.

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