Local Speech to Text on Apple Silicon: What to Test

Apple Silicon made local speech to text feel realistic for normal Mac writing. A modern Mac can run speech models that used to feel too heavy, and the privacy pitch is easy to understand: speak, transcribe near the device, edit, then decide where the final text belongs.

The harder question is whether a local workflow survives daily work. A model can be private and still be annoying if it takes too long to start, drains battery, misses proper nouns, leaves you cleaning long monologues, or forces you to copy text from a transcript window into the app where you were already writing.

This page was checked against current public pages on June 12, 2026, including Apple Dictation, Apple Siri, Dictation & Privacy, Superwhisper voice to text for Mac, Superwhisper dictation software, MacWhisper, Wispr Flow privacy, Aqua Voice FAQ, Raycast Dictation, and Typeless privacy. Treat product behavior, model choices, pricing, and privacy wording as a snapshot.

The quick Apple Silicon test

Before comparing every app, run one simple test. Turn Wi-Fi off. Open the app where you normally write. Dictate a 90-second note with names, dates, numbers, one product term, and one messy correction. Watch whether text appears in the right place, whether the app needs a connection, how long the first result takes, and how much editing remains.

If the app cannot run without a network connection, it may still be a good dictation product, but it is not local speech to text for that test. If it runs offline but leaves you with a cleanup chore, it may be private without being useful. The target is usable text, not a raw transcript.

What current source pages say

Apple's Dictation guide says you can dictate text anywhere you can type on a Mac. It also tells users to check Keyboard settings to see whether general text Dictation inputs and transcripts are processed on device. Apple's privacy page says settings indicate whether requests are processed on device or on Apple servers, and that when processing is not on device, the things you say and dictate are sent to Apple to process your request.

Superwhisper's Mac voice-to-text page leans hard into the Apple Silicon case. It says the app can work offline on M-series Macs, put text at the cursor in any app, and run offline models on the Neural Engine so nothing leaves the Mac. Its broader dictation page also talks about a Mac, Windows, and iOS workflow, custom AI prompting, file transcription, and a free tier.

Amical takes the open-source model-choice route. Its pricing page lists unlimited local dictation on the free plan, fast cloud models, no data retention, and no training on user data. Its comparison page also shows how competitors frame this category: local models, offline processing, cloud processing, model choices, and transparent pricing.

MacWhisper belongs in the local Apple Silicon conversation, but mainly for files. Its product page positions the app around transcribing audio and video files on the Mac, with local model options and export workflows. That is different from live dictation into a text field.

The hosted tools set the contrast. Wispr Flow's privacy page says transcription always happens in the cloud. Aqua's FAQ says Aqua is cloud-based and needs a connection. Raycast Dictation is a launcher workflow with hotkey dictation, filler removal, punctuation cleanup, active-app paste, and App Context. Typeless privacy says audio and context awareness information are processed in real time on cloud servers and immediately discarded once the result returns.

Local speech-to-text scorecard for Apple Silicon

Use this scorecard before paying for a local Mac dictation app. The goal is not to find the biggest model. The goal is to find the smallest workflow that reliably turns your speech into editable text.

Tools to compare

Unspoken for local-first rough capture

Unspoken fits Mac users who want the first spoken draft to start close to the machine before the final text moves into another app. That is the normal case for private notes, customer replies, prompts, issue comments, hiring thoughts, client recaps, and paragraphs that still need editing.

The test is practical: can you press a shortcut, speak a rough thought, and get editable text without turning every spoken idea into a hosted transcript workflow?

Apple Dictation for the built-in baseline

Apple Dictation is the first control because it is already on the Mac. It is useful for short, low-risk text and for checking your microphone, speaking pace, and punctuation habits before you install anything else.

It is also a privacy settings lesson. Do not assume every dictation path is local. Apple tells users to check whether general text Dictation inputs and transcripts are processed on device, and its privacy page explains what changes when processing uses Apple servers.

Superwhisper for offline Apple Silicon power users

Superwhisper is the most direct Apple Silicon comparison because its Mac page talks about offline models on M-series Macs, text at the cursor, and running offline models so audio stays on the device. Test it when you want more controls, modes, file transcription, and a wider voice workflow.

The tradeoff is setup. If the app offers several models, modes, prompts, and destinations, measure the time from speaking to usable text instead of only the accuracy of the best model.

Amical for open-source local dictation

Amical is worth testing when open source, local models, and free local dictation matter. Its pricing page separates unlimited local dictation from cloud dictation limits and paid cloud plans.

That does not remove the need to test. Check model download size, language support, hotkey behavior, custom vocabulary, history, and whether the text lands cleanly where you write.

MacWhisper for local file transcription

MacWhisper is useful when you already have audio or video: a lecture, meeting recording, interview, podcast clip, voice memo, or screen recording. Local file transcription is a different job from live dictation.

If your task is daily writing, test cursor insertion first. If your task is turning recordings into transcripts, test file import, playback, timestamps, search, exports, and long-file handling.

Hosted tools for comparison

Hosted tools can be the right choice when polish matters more than local capture. Wispr Flow, Aqua Voice, Raycast Dictation, and Typeless all offer useful voice-writing paths, but their public privacy or FAQ pages describe cloud processing, app context, or hosted cleanup in ways that should be checked before using sensitive rough drafts.

This is not a reason to avoid them. It is a reason to put them in the correct category. Hosted polish and local Apple Silicon speech to text solve different jobs.

Privacy and processing checks

Local processing is not the whole privacy story. A tool can transcribe locally, then store audio history, sync transcripts, send cleanup to a hosted model, or read app context for formatting. Ask the whole chain.

• Is microphone audio transcribed on the Mac, in the vendor's cloud, or by a third-party service?
• Can the app work after you quit it, reopen it, and turn Wi-Fi off?
• Does cleanup, formatting, summarizing, or style rewriting use a hosted model?
• Are audio files, transcripts, prompts, screen context, app context, or logs stored?
• Can history be disabled, cleared, or kept local only?
• Does the vendor's current privacy page match your actual risk: client data, health information, legal notes, source code, hiring context, or financial details?

Use harmless test notes first. Replace names, companies, account IDs, symptoms, internal URLs, and private numbers. If the workflow works with placeholders, it is easier to use safely when the text matters.

Battery, heat, and latency

Apple Silicon can make local dictation fast enough for daily writing, but the model still has to fit your Mac. A fanless MacBook Air, a MacBook Pro on battery, and a desktop Mac mini can behave differently. Do not test only while plugged in at a desk.

Measure the boring parts:

• First capture delay after launching the app.
• Delay after switching apps.
• Delay after a 90-second paragraph.
• Battery drop after ten short dictations.
• Heat and fan behavior on a longer session.
• Whether other apps feel slower while transcription runs.

A slightly less accurate model can win if it starts quickly, stays cool, and produces text you can fix in ten seconds. A more accurate model can lose if you avoid using it because every capture feels heavy.

A 20-minute local speech-to-text test plan

1. Record the setupWrite down Mac model, chip, memory, macOS version, microphone, app version, model name, and whether cloud fallback is disabled.
2. Turn Wi-Fi offQuit and reopen the app before testing so you know it is not relying on a warm network session.
3. Dictate five samplesUse a short reply, a long paragraph, a private-style note with fake names, a technical prompt, and one messy correction.
4. Test five destinationsTry Mail or Gmail, Slack or Teams, Notion or Notes, a browser form, and a document editor.
5. Measure usable textStop timing only when the text is clean enough to send, save, or keep editing.
6. Check storageFind transcript history, audio files, logs, analytics, cleanup settings, and deletion controls.
7. Repeat on batteryRun the same test unplugged. Watch heat, fan behavior, and whether you still want to use the app tomorrow.

Verdict

Local speech to text on Apple Silicon is best for private rough capture, offline work, weak networks, and writers who want the first draft to stay close to the Mac. It is not automatically better for every job. Hosted tools can be faster at polish, cross-device writing, snippets, and team workflows.

Choose Unspoken when the repeated task is local-first Mac writing: notes, replies, prompts, recaps, and first drafts that should be reviewed before they move into a shared app. Use Apple Dictation as the free baseline. Test Superwhisper or Amical when you want a broader local/offline toolset. Use MacWhisper when the source is an existing recording. Compare Wispr Flow, Aqua Voice, Raycast, and Typeless when hosted cleanup is the trade you actually want.