How AI Post-Processing Works
After Whisperer transcribes your speech, the text passes through an optional AI processing step before being inserted into your app. The on-device LLM transforms your raw dictation into polished, professional text.
The entire pipeline is offline — your voice data and text never leave your Mac. No API keys to manage, no per-word charges, no cloud latency.
Processing Pipeline
10 Built-In AI Modes
Each mode uses an optimized temperature setting for its task. See real before/after examples below.
Rewrite
Clean up transcribed speech into professional written text
so basically what I was thinking is that we should probably go ahead and implement the new caching layer because it would make things faster
We should implement the new caching layer to improve performance.
Translate
Translate dictation to any target language, entirely offline
Please send me the quarterly report by Friday afternoon.
Bitte senden Sie mir den Quartalsbericht bis Freitagnachmittag.
Format
Apply Markdown formatting with headers, bullets, and structure
the project has three phases first research second development third deployment each phase takes about two weeks
# Project Phases 1. **Research** — 2 weeks 2. **Development** — 2 weeks 3. **Deployment** — 2 weeks
Summarize
Condense long dictation into concise key points
We had a long meeting today where we discussed the roadmap for Q3. The main topics were the mobile app launch which is scheduled for August, the API redesign which needs to start in July, and the hiring plan for two new engineers.
Q3 roadmap: Mobile app launch (Aug), API redesign (start Jul), hire 2 engineers.
Grammar
Fix grammar and punctuation without changing meaning
the team have been working on there new feature and its going good so far
The team has been working on their new feature and it's going well so far.
List Format
Detect and format spoken lists into structured bullet points
we need to buy milk eggs bread and also get some cheese oh and don't forget the butter
- Milk - Eggs - Bread - Cheese - Butter
Coding
Rewrite as technical documentation or code comments
this function takes a user ID and returns their profile data from the cache or falls back to the database if not cached
/// Retrieves user profile by ID. Returns cached data if available; otherwise queries the database.
Format as a professional email with greeting and sign-off
hey can you send me the updated wireframes by end of day also the client wants to schedule a call for Thursday
Hi, Could you please send me the updated wireframes by end of day? Also, the client would like to schedule a call for Thursday. Best regards
Creative
Enhance with vivid, engaging language
the sunset was nice and the beach was quiet
The sunset painted the horizon in brilliant shades of amber and rose, while the beach lay serene beneath the fading light.
Custom
Write your own system prompt for any transformation you need
Your dictated text goes here...
Transformed according to your custom instructions.
Rewrite Mode
Rewrite Mode goes beyond dictation. Press your rewrite shortcut (Option+Shift+Tab) to rewrite any text on your clipboard through the active AI mode — no recording needed.
Select text in any app, copy it, trigger rewrite, and the polished version replaces your clipboard content. Perfect for cleaning up quick notes, reformatting existing text, or translating passages.
AI Enhancement History
Every AI transformation is stored with before/after text in your transcription history. Made a mistake? Undo any AI enhancement and revert to the original transcription with one click.
Frequently Asked Questions
Does the AI require an internet connection?
No. Whisperer runs a local LLM entirely on your Mac. No data leaves your device. No API keys, no cloud, no subscription fees.
Which AI modes are available?
Ten built-in modes: Rewrite, Translate, Format, Summarize, Grammar, List Format, Coding, Email, Creative, and Custom. Each has an optimized temperature setting for its task.
Can I create my own AI mode?
Yes. The Custom mode lets you write your own system prompt, so the LLM can perform any text transformation you define.
What happens if the AI processing fails?
Whisperer gracefully falls back to your original transcription text. You never lose your dictation.