991 B
[2026-09-15] Parakeet bench settled by tts-dev — FV wins at both clip lengths and beats the incumbent Whisper; IRV seat is now retirable.
Parakeet bench settled by tts-dev — FV wins at both clip lengths and beats the incumbent Whisper; IRV seat is now retirable. FV 155 ms / 391 ms on 1.84 s / 6.24 s clips vs IRV 354 / 1010 vs whisper-large-v3 457 / 690 — IRV is slower than Whisper at 6.24 s. Length sweep (n=9/cell, first 3 discarded) fits ~58 ms fixed + 56 ms per audio-second, asymptote ~17.8x realtime, which independently reproduces our 17x on a different harness. Gateway hop measured below harness resolution (±30 ms), so ext-stt is the right consumer path. ⚠ tts-dev retracted their own plan's 60-120 ms projection: published RTFx is BATCHED THROUGHPUT, not single-stream latency — the two differ by ~200x. ⚠ Their between-run variance is ±20% because GPU 0 is the live chat path; our 0.50 s median was taken on an idle GPU 3 and is a best case.