Four apps that don't just transcribe. They rewrite raw speech into something you can actually send. Murmur, Wispr Flow, SuperWhisper, Aqua Voice. Apple Dictation and MacWhisper excluded because neither has an AI polish step.
Verified May 2026 · written by the Murmur team
Plain dictation gives you "um yeah so I think we should probably uh maybe push that to next week." AI dictation gives you "I think we should push that to next week." Same words in, very different output.
The four apps below all do this. They differ on how much polish, how much customisation, where the audio goes, and what you pay for the privilege. The right pick depends on what you're dictating and how much you'd like to be paying every month.
Single hotkey, three gestures: tap (raw), double-tap (Claude polish with screen context), long-hold (silent reply, only the answer pasted). Audio is local; AI calls go through your own Claude API key. The cheapest live AI dictation that knows what's on your screen.
The slickest AI dictation product on the market. Tone adapts per app (Slack vs email), formatting is excellent, and the rewrite engine has clearly had a lot of investment. Cost is $144/yr forever, and audio leaves your machine.
Build unlimited custom modes with your own prompts. "Reply to email," "summarise meeting," "translate to Spanish," each as a separate mode with its own system prompt. The configurator's playground.
Sub-second cloud transcription with smart formatting and inline voice commands ("new paragraph," "bullet list"). Cheapest of the subscription apps at $96/year. Audio leaves your machine.
Same product category, very different bills:
The cheapest AI dictation over 3 years is Murmur. The most polished is Wispr Flow. The most flexible is SuperWhisper. Pick on what you actually need.
Murmur ($29 lifetime) for live AI polish via Claude with screen context. Wispr Flow ($12/mo) for the deepest cross-app rewrite engine. SuperWhisper ($249.99 lifetime) for unlimited custom AI modes. Aqua Voice ($8/mo) for fast cloud transcription with formatting.
It transcribes your speech, then runs the result through a language model that fixes punctuation, removes filler words, splits paragraphs, and rewrites in the tone you ask for. Some apps go further and add screen context, so the AI knows what email you're replying to.
Most do, because the LLM step runs in the cloud. Murmur's transcription is local but the polish step calls Claude. VoiceInk can do both steps locally if you run an Ollama model. Wispr Flow and Aqua Voice are fully cloud.
Murmur is one developer, no hosted infrastructure (your audio runs on your Mac, your Claude API key handles the AI), and a lifetime licence model instead of recurring revenue. Wispr Flow has a team and runs servers, so they need a subscription.
Murmur ships pointed at Claude. The Claude API key is yours, so you control spend and model choice within the Claude family (Sonnet, Haiku). Other providers may come later, but Claude is the supported path today.
Murmur is the cheapest way to get screen-aware AI dictation on a Mac. Quick mode is free forever; the $29 licence unlocks AI mode and Silent mode. You bring your own Claude API key, you see every cent.