Mouse-1 vs Willow on IOS: Features, Pricing & Which Is Better (2026)
A side-by-side comparison of Mouse-1 and Willow on IOS — features, pricing, and ideal use cases — to help you decide which AI tool fits your workflow.
Mouse-1
Mouse
Mouse-1 is a fast, low-cost decision model that plugs into agent harnesses to handle routing, gating and verification.
Key features
- Decision Layer for Agents: Takes agent state and options and returns probabilities so the harness can route, gate and verify.
- About 100 ms Latency: Answers faster than a chat model's first token.
- Batch Decisions: One request answers up to 128 questions.
- Prompt-Injection Resistance: Chooses only from supplied options; planted instructions changed 0% of decisions in vendor tests.
- Zero Data Retention: Requests are scored and dropped, never stored or used for training.
- Image and Document Classification: Handles content moderation, document routing and browser-state detection.
Best for
- Agent Routing: Deciding which model or tool an agent should use next.
- Action Gating: Approving or blocking risky agent actions cheaply.
- Content Moderation: Classifying images or text as safe or unsafe.
- Document Routing: Sending invoices, contracts and IDs to the right workflow.
- Browser Agents: Detecting screen state such as login required or error.
- Cost Reduction: Offloading small decisions from expensive frontier models.
Willow on IOS
Willow Voice
Fast, context-aware speech-to-text dictation for Mac and iPhone with custom dictionaries and privacy-focused handling.
Key features
- Real-time Dictation: Converts spoken input into text on macOS and iPhone with immediate transcription for emails, documents, notes, and messages to speed up writing workflows.
- Context-Aware Processing: Uses contextual language understanding to improve accuracy and punctuation, adapting transcription to sentence structure and conversational context.
- Custom Dictionaries: Allows users to add domain-specific vocabulary, names, and technical terms so transcriptions reflect industry- or user-specific language correctly.
- Automatic Editing & Formatting: Applies automatic edits, punctuation, and formatting rules to raw transcribed text to reduce manual cleanup after dictation.
- App Integrations: Designed to work across common workflows and apps (email, documents, note-taking, messaging, and the Cursor editor) to insert transcribed text where users work.
- Privacy-Focused Handling: Emphasizes secure and private handling of voice data and transcription results to protect user information and sensitive content.
- Real-time speech-to-text dictation on iPhone and Mac
- Context-aware automatic edits to improve transcript quality
- Custom dictionaries and terminology support
- Privacy-focused operation with options for local/self-hosted inference
- Integration-ready: supports use in email, documents, note-taking, messaging, and developer workflows
- Willow Inference Server for self-hosted STT, TTS, LLM, and WebRTC inference
Best for
- Writing emails hands-free: Dictate long or short emails on Mac or iPhone to compose messages faster without switching to a keyboard.
- Meeting and lecture notes: Capture spoken content during meetings or lectures and get edited, punctuated notes ready for review and sharing.
- Document drafting and editing: Rapidly create drafts of reports, articles, or documents via voice, with automatic formatting reducing post-edit effort.
- Messaging and quick replies: Compose rapid, accurate message responses in chat and SMS apps using voice input on iPhone.
- Technical and domain-specific transcription: Use custom dictionaries to accurately transcribe industry jargon, code-related terms, names, and acronyms for developer or specialist workflows (e.g., Cursor integration).
- Accessibility and hands-free computing: Provide an accessible input method for users with mobility or dexterity impairments who need reliable speech-to-text on macOS and iOS.
- Hands-free email and document composition on iPhone and Mac
- Faster note-taking and meeting transcription
- Voice-driven messaging and chat input
- Accessibility for users needing speech input
- Enterprise/local deployment using Willow Inference Server for private on-premise transcription and TTS
- Developer integration for embedding STT/TTS/LLM capabilities into apps or real-time WebRTC flows