# OpenWhispr vs CielChan (phasma.ai)

OpenWhispr records 291,756 monthly visits with -13.3% month-over-month growth and Free pricing. CielChan (phasma.ai) records 23 monthly visits with 0% growth and Freemium pricing.

| Metric | [OpenWhispr](https://openaitools.app/tool/openwhispr) | [CielChan (phasma.ai)](https://openaitools.app/tool/phasma) |
| :--- | :--- | :--- |
| Website URL | https://openwhispr.com | https://phasma.ai |
| Categories | AI Speech-to-Text, AI Transcription, Audio To Text AI, AI Note Taker | AI Writing Assistants, AI Book Writing, AI Translate, AI Summarizer |
| Pricing Model | Free | Freemium |
| Monthly Visits | 291,756 | 23 |
| MoM Growth Rate | -13.3% | 0% |
| Primary Market | United States | Japan |
| Direct Visits | 72,621 | 8 |
| Review Score | 4.5 | 4.4 |
| Saved Count | 0 | 0 |
| Supported Platforms | Website | Website |

## OpenWhispr

OpenWhispr tackles a simple arithmetic problem: most people type around 40 words per minute but speak closer to 150. The app listens through a configurable hotkey, streams your speech through a speech recognition model, and pastes the result into whatever text field is focused — ChatGPT, Claude, Cursor, Slack, Docs, Gmail, or an IDE. Because it operates at the operating-system level rather than inside one app, it becomes a universal input method rather than a single-purpose tool.

The distinguishing choice is where the audio goes. Local mode runs on-device models such as Whisper or NVIDIA Parakeet entirely on your hardware, so nothing leaves the machine. Cloud mode is optional and lets you plug in your own provider keys, with recordings deleted once transcription finishes. The project is published under the MIT license with a public GitHub repository, and it publishes compliance credentials including SOC 2 Type II, ISO 27001, HIPAA and GDPR alignment — unusual for a free utility, and aimed squarely at teams whose security reviewers would otherwise block a dictation tool.

Beyond raw transcription, OpenWhispr layers on voice commands and AI cleanup. You can say things like "clean this up" or "draft an email to Mike" and the model restructures the rough transcript accordingly. A custom vocabulary system learns names and domain jargon such as product names, internal services or database identifiers directly from corrections you make, which is where generic dictation tools usually fall apart. Language support spans 100+ languages with automatic detection, so switching languages mid-conversation keeps working.

**Pricing & Plans:** Free to download and use, and the code is open source under the MIT license. Local on-device transcription and bring-your-own-API-key cloud transcription cost nothing extra in software fees; if you choose a paid cloud provider, you pay that provider directly. A separate pricing page and enterprise contact option exist for organisational deployments.

- **System-wide dictation:** Press a configurable hotkey and your words are typed into whichever app has focus — chat clients, editors, browsers and terminals alike.
- **Local or cloud processing:** Run on-device models such as Whisper or NVIDIA Parakeet for full privacy, or switch to cloud transcription with your own provider API keys.
- **AI cleanup and voice commands:** Spoken instructions like "clean this up" or "draft an email" let the model restructure and polish the raw transcript before it lands.
- **Custom vocabulary learning:** Names, jargon and technical terms are auto-learned from your corrections so recurring vocabulary stops being misheard.
- **100+ languages and offline mode:** Automatic language detection across more than a hundred languages, with everything still working without an internet connection.

**Strengths:** Genuinely free and open source under the MIT license, with the code available for inspection.; On-device models mean dictation can work fully offline with no audio leaving your computer.; Works across all apps rather than being locked inside one editor or chat window.; Publishes SOC 2 Type II, ISO 27001, HIPAA and GDPR-oriented credentials, which is rare for a free tool.

**Limitations:** Local models require a reasonable amount of disk space and benefit from decent hardware.; You must supply and manage your own API keys if you want cloud processing.; Cloud features depend on third-party providers, so quality and cost vary by provider.

[Profile (Markdown)](https://openaitools.app/tool/openwhispr.md)

## CielChan (phasma.ai)

CielChan is a local-first desktop companion rather than a web chatbot. Everything — conversation, memory, and voice — runs on your own PC, so there are no accounts, no API keys, and no subscription. The free version covers voice and text chat, companion memory, and an animated avatar with lip sync. The Plus tier, a one-time payment, unlocks system and audio awareness, advanced voice options, custom VRM avatars and models, multiplayer rooms, a TXT/EPUB book reader, minigames, and local vision for images and screenshots.

Beyond conversation, CielChan bundles utility: timed focus sessions, quick tasks and notes, reminders, ambient soundscapes, and bridges into live-stream chats on TikTok, YouTube, and Twitch. She can react to whatever you are doing on screen with subtle contextual comments, and advanced users can load custom GGUF models to control how she thinks, plus swap in their own VRM avatars. Multiplayer shared spaces let users and companions chat, interact, or run debate sessions together.

Two things are worth stating plainly for anyone who arrived here expecting the older product. First, this is a Windows application with meaningful system requirements (Windows 10/11, 8–16 GB RAM, around 28 GB of disk space), packaged as a download rather than a browser tool. Second, the phasma.ai domain formerly hosted Phasma, an AI writing and coding editor for document processing, translation, and summarization; the site now presents CielChan instead, and it is unclear whether Phasma is still maintained elsewhere.

**Pricing & Plans:** Free version available (voice and text chat, memory, animated avatar, no setup). CielChan Plus is a one-time $7.99 purchase (current version shown as 1.9.7) unlocking system/audio awareness, advanced voice options, custom VRM and model support, multiplayer rooms, book reader, minigames, and local vision. No subscriptions. Free version also distributable via itch.io, with Plus available on Steam or itch.io.

- **Offline voice and text conversation:** Natural two-way voice chat plus full text chat, all processed locally on your PC with no accounts, API keys, or data leaving your machine.
- **Persistent memory and evolving personality:** Ciel remembers who you are and your past conversations, becoming more familiar the more time you spend together.
- **Animated VRM avatar with context awareness:** An expressive avatar with emotions, gestures, and lip sync that optionally reacts to your apps, media, and activity with subtle comments.
- **Productivity and companion tools:** Focus sessions, quick tasks and notes, reminders, ambient soundscapes, and a TXT/EPUB book reader with narration — plus minigames like Tic-Tac-Toe.
- **Live chat bridges and multiplayer rooms:** Connect to TikTok, YouTube, Twitch, and Discord chats so Ciel can interact with your live audience, and join shared rooms for companion interactions or debates.

**Strengths:** Runs 100% offline with no accounts, API keys, or subscriptions — strong privacy posture; One-time $7.99 Plus upgrade with a genuinely usable free tier; Rich feature set beyond chat: focus tools, book reader, stream bridges, local vision, custom models; Extensive customization through custom GGUF models, VRM avatars, and personality controls

**Limitations:** Windows-only and fairly demanding (around 28 GB of storage, 8–16 GB RAM); Several headline features (system awareness, custom models, multiplayer, book reader) require the paid Plus tier; This domain previously hosted a different product (Phasma writing/coding editor), which makes older listings misleading; Heavy local AI inference benefits from a dedicated GPU for best performance

[Profile (Markdown)](https://openaitools.app/tool/phasma.md)

## Frequently Asked Questions

### How do OpenWhispr and CielChan (phasma.ai) compare in monthly traffic?

OpenWhispr has 291,756 monthly visits, while CielChan (phasma.ai) has 23. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

OpenWhispr has a month-over-month growth rate of -13.3%; CielChan (phasma.ai) has 0%.

### How does pricing compare?

OpenWhispr: Free. Free to download and use, and the code is open source under the MIT license. Local on-device transcription and bring-your-own-API-key cloud transcription cost nothing extra in software fees; if you choose a paid cloud provider, you pay that provider directly. A separate pricing page and enterprise contact option exist for organisational deployments. CielChan (phasma.ai): Freemium. Free version available (voice and text chat, memory, animated avatar, no setup). CielChan Plus is a one-time $7.99 purchase (current version shown as 1.9.7) unlocking system/audio awareness, advanced voice options, custom VRM and model support, multiplayer rooms, book reader, minigames, and local vision. No subscriptions. Free version also distributable via itch.io, with Plus available on Steam or itch.io.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [DeepL](https://openaitools.app/tool/deepl) | 95,110,871 | -1.7% | Freemium | Enterprise-grade neural machine translation, AI writing refinement, and real-time voice translation across thirty-plus global languages. | [.md](https://openaitools.app/tool/deepl.md) |
| 2 | [TurboScribe](https://openaitools.app/tool/turboscribe-ai) | 27,661,771 | +2.1% | Freemium | Unlimited AI transcription of audio and video in 98+ languages | [.md](https://openaitools.app/tool/turboscribe-ai.md) |
| 3 | [Otter AI](https://openaitools.app/tool/otter-ai) | 7,360,981 | +9.6% | Freemium | AI meeting agent that transcribes, summarises, and turns every conversation into searchable knowledge | [.md](https://openaitools.app/tool/otter-ai.md) |
| 4 | [Type.ai](https://openaitools.app/tool/type-ai) | 567,928 | +9.4% | Freemium | The AI editor built for finishing books, screenplays and long-form stories | [.md](https://openaitools.app/tool/type-ai.md) |
| 5 | [Superwhisper](https://openaitools.app/tool/superwhisper) | 238,286 | -13.9% | Freemium | Offers a more polished cross-platform dictation experience, but lacks OpenWhispr's native open-source flexibility and self-hosting options. | [.md](https://openaitools.app/tool/superwhisper.md) |
| 6 | [AIWriteBook](https://openaitools.app/tool/aiwritebook) | 177,210 | -10.6% | Freemium, Free | AI book-writing suite that keeps your own author voice | [.md](https://openaitools.app/tool/aiwritebook.md) |
| 7 | [Aqua Voice](https://openaitools.app/tool/aqua-voice) | 152,601 | +19% | Freemium | Delivers cross-platform speech dictation directly into any application, but relies more heavily on cloud infrastructure. | [.md](https://openaitools.app/tool/aqua-voice.md) |
| 8 | [VoiceDash](https://openaitools.app/tool/voicedash) | 123,991 | -5.8% | Freemium, Free Trial, Paid | Converts speech into polished formatted text across devices, but operates as a proprietary commercial service. | [.md](https://openaitools.app/tool/voicedash.md) |
| 9 | [Meetily AI](https://openaitools.app/tool/meetily-ai) | 99,061 | -2% | Freemium, Free Trial, Contact for Pricing | Focuses specifically on open-source, privacy-first meeting transcription rather than general system-wide cursor dictation. | [.md](https://openaitools.app/tool/meetily-ai.md) |
| 10 | [Elephas](https://openaitools.app/tool/elephas) | 76,647 | -14.7% | Freemium | Private AI that answers from your own documents, on Mac and Windows | [.md](https://openaitools.app/tool/elephas.md) |

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Source: https://openaitools.app/compare/openwhispr-vs-phasma

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