Muse Voice Transcribe

Not measured. Meta ships a prerecorded endpoint; no batch sweep has been run on it.

Replaces a withheld n=20 reading of 5.3%. Numeral rendering is not deterministic dial to dial and dates are reformatted, so formatting variance rides in any WER on this model.

Lowest substitution rate in this run at 4.9%, under the leader’s 5.6% -- it hears better and loses on 5.7% deletions. Scores 8.7% on Indian English against 13.7% on Mainstream US: a 5.0pp inversion, the widest in the run, where the next is 3.6pp and three arms do not invert at all. Numeral rendering is not deterministic dial to dial, and it reformats dates -- "on 15 august 1940" came back as "On August 15, 1940" -- so formatting variance rides in any WER on this model.

Measured but withheld: on 9 of 30 clips the speech-end marker lands up to 2.4s after Meta committed the turn, while the transcript is complete -- so the marker, not the model, sets the number. Muse finalizes faster than this corpus can resolve.

Vendor list price: $3.00 per 1,000 minutes, equivalently $0.18/hr. Streaming and batch are priced identically -- the table does not differentiate -- and there is a single tier, no plan or volume rates.