You’ve typed
your whole life.
Now just speak.
Sema Ink turns your voice into clear text in real time. Twi, Pidgin and English, even mixed in one sentence.
Semaand speak to text anyone, in any app.Why Sema Ink
Twi, Pidgin, English.
One breath, one keyboard.
How are you? I'm good, see you at campus later today.
Wo ho te sɛn? Me ho yɛ, yɛbɛhyia wɔ campus akyire yi.
It heard
sima
You fixed it to
Sema✓
Speak all your languages
Code-switch freely between Twi, Pidgin and English, Sema Ink hears the switch mid-sentence. It also dictates cleanly in French, Spanish, German, Italian and more.
Five times faster
Talk naturally and it becomes clean text in real time, far faster than your thumbs.
It learns your world
Fix a name once and it remembers, spelling the people and places you know your own way.
Works in every app
Messages, WhatsApp, email, notes. Type with your voice anywhere you already write.
Code-switching
One sentence,
three languages.
Slide between Twi, English and Pidgin mid-thought and Sema Ink keeps up, hearing the switch the moment it happens. More languages are on the way.
Publications
Research, benchmarks and engineering notes from building African-language dictation.
Sema Ink v1 vs the GhanaNLP Akan benchmark
49.5% WER on a benchmark it was never trained on, head-to-head with in-domain models on their own yardstick.
The first Twi / Pidgin / English code-switch benchmark
An open evaluation set for the everyday code-switching that no existing benchmark covers.
One CPU box to one GPU
The real economics of running African-language dictation at scale, from a load test to a GPU benchmark.
Does code-switching transfer?
A Ghanaian model tested on Mandarin, Yoruba and Spanish, and the 'Twi gravity well' we found along the way.
float16 beats int8
Faster and more accurate low-resource ASR at once, measured across 44 real dictation clips.
What fine-tuning Whisper on Twi does to its other 98 languages
A 41-language FLEURS coverage map: what really happens to a model's other languages when you specialise it on Twi.
The correction flywheel
How a dictation product that learns from every correction compounds into a moat competitors cannot copy.
FAQ
Questions, answered.
A voice keyboard that types what you say. Speak naturally and it becomes clean text in real time, right where you already write.
Twi, Pidgin and English are the core, and you can switch between them mid-sentence. Dictation also works in French, Spanish, German, Portuguese, and more, since the model understands dozens of languages. We keep expanding and tuning the ones we test.
Yes. It is a keyboard, so it works anywhere you type: Messages, WhatsApp, email, notes and the rest.
It is trained on real Ghanaian and Nigerian speech, and it learns from your corrections over time, spelling the people and places you know your own way.
Sema Ink never stores or sells what you say. Audio is used to transcribe you and nothing else.
Sema Ink is in beta on TestFlight now, with the App Store release to follow.