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Vella 2.2.0

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@github-actions github-actions released this 07 Nov 00:24
· 28 commits to main since this release
v2.2.0
572f03e
  • Nemotron 3.5 Transcribe (NVIDIA, 30B-A4B, OpenMDW-1.1) joins Dictation for 40 languages: a speech language model that returns the text once the recording is encoded. Get downloads NVIDIA's bf16 release (67.5 GB); int8 and int4 are made from it on your Mac when they load, as for the other models. Each precision shows only where your Mac has the memory: int4 from 48 GB, int8 from 64 GB, bf16 from 96 GB; below that the row is greyed with what it needs. Parakeet v3 Ultra stays the first-dictation model; nothing downloads or loads until you click Get. Your vocabulary list applies to it too (docs/vocabulary.md).
  • The Models table, vella models and the API state each precision's memory floor (min_memory_gb) and refuse a tier that does not fit (insufficient_memory).
  • Measured in the Models table. On an M5 Max its English word error rate is 14.5–14.8 % at every precision (Parakeet v3 Ultra: 15.5 %), with all nine benchmark languages. int4 with Fast runs at 29× real time in 24 GB within 0.1 point of 16-bit English WER, so on M5 Macs it is the gold precision wherever it fits; bf16 needs 65 GB, int8 38 GB. Its energy column stays empty: on macOS 27 the energy meter reads only the GPU without administrator rights, and the tooltip says so.
  • On M5 Macs, a precision that passes the 16-bit quality gate is recommended even when the Mac is too small for the 16-bit tier itself.
  • Fast decoding (draft and verify) falls back to plain decoding by itself if it fails, and a segment it would repeat endlessly is decoded again plainly.

Install or update with scripts/install.sh from a checkout of this tag (see the README): it downloads this zip and checks it against SHA256SUMS before installing. To check the zip's build provenance:

gh attestation verify Vella-2.2.0-arm64.zip --repo TobyNoSkillSon/Vella

Signed with Vella's own certificate "Vella Release Signing" (SHA-1 2CA2587C8B85EF687E68950E405EC58CE31FC1C7), the same in every release. Microphone and Accessibility permissions carry over between releases signed with this pinned identity; the first migration from a development or other identity requires granting them again.

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