With offline dictation your voice is turned into text on your own computer and the audio never leaves it. With cloud dictation the audio is uploaded to a company's servers, transcribed there, and sometimes kept. On a Mac with Apple Silicon, offline dictation is now accurate and fast enough for daily use, so the main reasons to pick cloud are specific features, not quality.
Most people don't think about this until they've dictated something they shouldn't have.
What happens with cloud dictation#
Record
Upload
Process
Return
Retain
Everything you say travels over the internet: client names, health details, salary numbers, the draft you haven't shown anyone. Read the provider's retention policy before you dictate anything sensitive.
What happens with offline dictation#
Record
Transcribe
Paste
Keep or delete
No servers, no uploads, no third parties. It keeps working on a plane, and it keeps working even if the company that made the app disappears.
The differences side by side#
| Cloud | Offline | |
|---|---|---|
| Audio leaves your Mac | Yes | No |
| Works without internet | No | Yes |
| Provider can retain your data | Depends on the service | No |
| Ongoing cost | Usually a subscription | Often a one-time purchase |
| Access to the largest AI models | Yes | Limited to what fits on your Mac |
Who should care most#
- Lawyers, doctors, therapists and finance staff handling confidential information. Keeping audio on the device removes one big question. You still need to follow your own compliance rules.
- Anyone under an NDA or with a company policy on sending data to outside services.
- Journalists protecting sources.
- Anyone who dictates personal things, like journal entries or messages to family.
Speed#
Offline dictation skips the upload and download. On Apple Silicon, Whisperer streams words into a live preview while you're still speaking, and the final text is ready moments after you release the key. Cloud services can be fast too, but they depend on your connection.
Reliability#
Cloud dictation fails when the Wi-Fi drops, when the service has an outage, or when you're on a plane. Offline dictation doesn't care.
Accuracy#
Cloud used to have a clear lead. With Whisper Large V3 Turbo on Apple Silicon, the gap for everyday dictation is small. Cloud models still help with very noisy audio and rare vocabulary, and a personal dictionary closes much of the rest.
The middle ground for meeting notes#
Meeting notes are where a big cloud model can genuinely help: summarizing an hour of discussion into decisions and action items. Whisperer splits the job so you choose:
- Speech recognition always runs on your Mac. Meeting audio never leaves it.
- Notes are written by the AI you pick on the LLM page. The built-in Qwen3.5 4B model keeps everything local. Or use your Claude, ChatGPT or Gemini plan, in which case only the text transcript is sent to that provider.
- You can keep any single meeting local, even if your default is a cloud AI.
See your AI and meetings for how this works.
About "free" cloud services#
When a cloud dictation service is free, ask how it pays for itself. Some use recordings to train models, and some allow human review of samples. Check the policy. An offline app has a simpler deal: you pay for the software, and your data stays on your Mac.
FAQ#
Is offline dictation as accurate as cloud dictation?#
For everyday dictation on Apple Silicon, modern Whisper models running on the Mac are close enough that most people can't tell the difference. Cloud models can still do better on very noisy audio or rare vocabulary.
Does Whisperer send anything to the cloud?#
Speech recognition always runs on your Mac and audio never leaves it. If you choose a cloud AI such as Claude or ChatGPT for meeting notes or rewriting, only the text transcript goes to that provider. The built-in Qwen3.5 4B model keeps everything local.
Related: Whisperer vs Wispr Flow, AI meeting notes without a bot. See pricing and all dictation features.