Jexxa: on-device dictation for Mac, no upload, no per-minute billing, learns your words

Show HN: Jexxa: High Speed on Device Dictation

Jexxa is a Mac dictation tool that runs entirely on-device. Hold a key, speak, and text appears at the cursor in about 0.2 seconds after release. No audio or transcripts are uploaded; it works offline. It shows a live preview, supports undo commands like 'JX minus one,' and learns from corrections to names and jargon. Two model sizes: 3.1 GB download for 16 GB Macs, 2.0 GB for 8 GB Macs. Pricing is $8/month with no usage caps. The post does not disclose the model architecture, supported languages, or accuracy benchmarks.

Why it matters: On-device dictation tool with 0.2s latency, offline support, $8/mo — three concrete selling points. Not scoring higher because this is a Show HN launch with no independent reviews or benchmarks; real-world accuracy and cross-app compatibility are still unknown.