Published is not granted, and this is a published application — so let's read it as exactly that. US20260162656A1, "Mixture-of-Expert Conformer for Streaming Multilingual ASR," was published June 11, 2026, assigned to Google LLC, with inventors including Ke Hu, Bo Li, Tara N. Sainath, and Yu Zhang. The A1 suffix and the /publications/ path both say the same thing: this is a disclosure, not a right.
What it discloses is a domain application of an idea this site has covered at its foundation. The mixture-of-experts pattern — a gating network routing each input to a few specialized sub-networks — gets applied here to a conformer, the convolution-augmented transformer architecture that dominates speech recognition. The target is streaming, multilingual ASR: transcribing speech across many languages, in real time, without paying the full model's compute on every frame. The CPC is G10L 15/197 — speech recognition, not the G06N class where the MoE architecture patents live, which itself tells you the claimed contribution is the speech application.
Because it is an application, the right reading is forward-looking and cautious. The claims as published are what Google asked for. They have not been examined to allowance; they will very likely narrow before anything issues, if it issues at all. Reporting the broadest language here as a "Google patent on MoE speech models" would be exactly the error this desk exists to avoid. The accurate statement is: Google has published an application directed to applying MoE routing to multilingual streaming speech recognition.
It is still worth watching, for two reasons. First, it shows the mixture-of-experts family extending into a specific, commercially live domain — on-device and streaming speech, where compute budgets are tight and routing's selective-activation payoff is large. Second, it sits adjacent to Google's granted MoE family (US10719761B2 and its continuations), so the prosecution history, if and when this issues, will be worth reading against those grants for how the claims are positioned.
For now, the disciplined summary is the honest one. This is a published application from Google applying a known efficiency architecture to speech. It is not an enforceable patent, its claims are provisional, and the verb is "published," not "patented." When it moves through prosecution, we'll read what actually issues.