Sumi
Talk naturally, get clean text. Local AI, free, open source.
What it does
You talk, Sumi types — but not what you actually said. It cleans up filler words and grammar, then adjusts tone for whatever app you're in. Gmail gets a professional version, Slack gets something short. Meeting mode records calls in the background. Edit by voice: select text, say what to change. 100+ languages. Runs on your machine. Free, GPLv3. macOS + Windows.
Does the same job
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A few years ago, right after high school, I decided to try to make a simultaneous translation app for Android as a side project, it took longer than expected (about 2 years) and I had to make a lot of compromises (I had to use Google's API and therefore make users use a developer key because at the time there were no free solutions for speech recognition and translation that had good quality). At the end of university, I decided to pick it up again and finally, using OpenAi's Whisper for speech recognition and Meta's NLLB for translation (with both running locally on the phone), I managed to…
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