Voice keyboard
Diction
by Diction Labs
An iPhone voice keyboard that dictates into any app and cleans the text up, with on-device, self-hosted or cloud speech recognition.
- iPhone
Speech engines it runs
- Whisper by OpenAIWhisper large-v3-turbo, English: 3.92%Whisper large-v3-turbo, No noise: 3.78%Whisper large-v3-turbo, 20 dB: 4.2%Whisper large-v3-turbo, 10 dB: 5.51%Whisper large-v3-turbo, 5 dB: 13.92%Whisper large-v3-turbo, 0 dB: 66.09%
- NVIDIA Parakeet by NVIDIAParakeet TDT v3, English: 4.48%Parakeet TDT v3, No noise: 4.44%Parakeet TDT v3, 20 dB: 4.44%Parakeet TDT v3, 10 dB: 4.48%Parakeet TDT v3, 5 dB: 7.85%Parakeet TDT v3, 0 dB: 44.47%
Word error rates from our own tests on public recordings: English in a quiet room and with background talk. Lower is better.
Key figures
Every figure about Diction
Each figure is a row of a research dataset. Open it for the exact words of its source or the exact request it was read from.
Dictation App Features Compared: Offline, Privacy, AI
- Diction: custom words2026-101 1 = yes, 0 = no
- Diction: free plan2026-101 1 = yes, 0 = no
- Diction: audio on servers2026-100 1 = yes, 0 = no
- Diction: training on audio2026-100 1 = yes, 0 = no
- Diction: AI rewriting2026-101 1 = yes, 0 = no
- Diction: on-device speech2026-101 1 = yes, 0 = no
- Diction: types into any app2026-101 1 = yes, 0 = no
- Diction: voice editing2026-101 1 = yes, 0 = no
- Diction: works offline2026-101 1 = yes, 0 = no
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