Where Talon shines
Symbol-dense voice coding, tight editor integration through scripting, deep customization. If you have months to invest, Talon's ceiling is higher.
Where Jarvis wins
Time-to-productive. Most Jarvis users are dictating into their editor in under 5 minutes. No grammar files. Natural-language commands instead of a memorized vocabulary.
Pricing
Talon: free for basic, $15/month for the full ML model. Jarvis: free, open source, all features included.
Pick Jarvis if
You want voice on Mac without committing weeks to learning a new system, you value open-source code you can audit, and you want voice control beyond just coding.