AI Companion
AI Companion is more than cleanup. It polishes your natural speech into clean text, and it understands voice commands. Say "translate this to French", "make it shorter", or "rewrite as a bullet list" and it just does it. It is a writing companion that listens, cleans up, and follows instructions.
When you speak, you don't speak in perfect sentences. You say "um", pause mid-thought, restart, skip punctuation, and trail off. That is normal. AI Companion takes the raw transcription and cleans it up before the text is inserted. And when you need more than cleanup, just tell it what to do.
The result: you dictate a quick thought and get a polished sentence. Dictate a paragraph and get something you would be comfortable sending as an email. Or select existing text, say what you want changed, and it rewrites it on the spot.
Before and After
What you say:
"So um I was thinking we could like maybe move the meeting to Thursday instead of um Wednesday because I have a conflict"
What gets inserted:
I was thinking we could move the meeting to Thursday instead of Wednesday because I have a conflict.
What you say:
"Hey can you um send me the the report when you get a chance I need it for the uh the presentation tomorrow morning thanks"
What gets inserted:
Hey, can you send me the report when you get a chance? I need it for the presentation tomorrow morning. Thanks.
What you say:
"Note to self buy milk eggs bread and also pick up the dry cleaning before five"
What gets inserted:
Note to self: buy milk, eggs, bread, and also pick up the dry cleaning before five.
What It Does
- Removes filler words ("um", "uh", "like", "you know", "sort of")
- Removes accidental word repetitions ("the the", "I I")
- Adds punctuation and capitalisation
- Fixes grammar and sentence structure
- Preserves your meaning and intent -- it cleans up how you said it, not what you said
What It Does Not Do
- It does not change the meaning of your words
- It does not add content you did not say
- It does not translate between languages (unless you ask it to)
- It does not store or learn from your transcriptions
- It does not sanitise your language. Profanity comes through as you said it.
Sounds Human, Not AI
AI cleanup tools leave fingerprints. The em-dashes everywhere. The faintly formal vocabulary. The cadence that doesn't quite sound like a person wrote it.
AI Companion is tuned against that. Casual text stays casual. Professional text reads like a careful human, not a corporate template. The output should read like you, not like a model wrote it for you.
Context-Aware
AI Companion is not running in isolation. It sees the text around your cursor -- up to 500 characters before and after the insertion point, plus any selected text. This means:
- Inserted text matches the capitalisation of its position in the sentence
- Punctuation adapts to context (no period if you are mid-sentence)
- Tone and formality match what you have already written
- List formatting is continued when you are adding to a list
AI Companion also considers your recent dictations for terminology continuity. If you used a specific term two dictations ago, it carries that context forward.
Read more about context-aware editing.
Profile
Tone Presets shape style per app. Profile shapes everything underneath them.
In the Diction app, open Profile and write a short note about who you are and how you write. Software engineer who uses British English. Sales lead who talks to enterprise customers. Doctor who dictates patient notes. A few sentences are plenty.
AI Companion reads your Profile on every cleanup. Brand names and jargon come through. Domain language stays in the right register. Your spellings match what you actually use. The same raw dictation produces different results for different people because their Profile is different.
Profile and Tone Presets stack. Profile is the baseline that follows you everywhere. Tone is the local style for the app you are in right now. Set "British English, technical writing" as your Profile, then a Professional tone for Mail and a Casual tone for Messages, and your dictations come out as British technical email or British casual messages without you doing anything.
Write Profile once and it applies everywhere AI Companion runs.
Tone Presets
Set a writing style per app. Professional for email, Casual for messages, or write your own custom instruction. Diction remembers which tone goes with which app and applies it automatically.
My Words
Add names, jargon, and product terms that speech models keep getting wrong. Diction uses your custom words to improve both raw transcription and AI Companion accuracy.
How to Use It
AI Companion is enabled by default for Diction One subscribers. Toggle it off any time in the Diction app settings if you prefer raw transcription output.
When AI Companion is active, the transcription text (not the original audio) is processed by an AI model to produce the cleaned result. Audio is always discarded immediately after transcription, regardless of whether AI Companion is on or off.
Best For
- Emails and messages where you want polished output without editing
- Long-form dictation where filler words would clutter the text
- Professional contexts where grammar and punctuation matter
- Quick notes where you want clean text without going back to fix it