Cerence reaches settlement in principle with Microsoft in Delaware text-to-speech copyright suit

What happened

On or about 2026-10-01, Cerence Inc. and Microsoft Corp. filed a joint status report in the US District Court for the District of Delaware (No. 1:25-cv-00553-JCG) stating they had reached an agreement in principle to settle Cerence's copyright lawsuit against Microsoft and Nuance Communications over text-to-speech software. Cerence, a Nuance spin-off, sued in May 2025 alleging Microsoft and Nuance kept using its text-to-speech software after their license expired. The parties told the court they expect to finalize the agreement within 30 to 45 days and asked for a 60-day deadline; details were not disclosed.

Why it matters to creators

The dispute centers on ownership and licensing of AI voice technology: Cerence alleged a tech giant continued using its speech-synthesis software beyond its license. Its resolution via settlement rather than a verdict leaves the licensing boundary untested, but the case signals that voice-AI IP is becoming a contested licensing frontier for large AI companies.

What is not yet known

The settlement terms (confidential); whether the finalized agreement is executed within the 30–45-day window.