| What it does | Your AI knowledge partner for collecting, organizing, and creating from information
| Free AI chat with open models, no account or sign-up required
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| Stage | MVP
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| Founded | Not given
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| Based in | CN
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| Pricing model | Freemium
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| Pricing | Free plan: 5 GB storage, PDF/image parsing up to 600 pages/month, audio/video up to 60 minutes/month, maximum file size 20 MB. Pro plan: ¥35/month (or ¥0.94/day when paid annually with ¥70 discount) includes 50 GB storage, PDF/image parsing up to 3000 pages/month, audio/video up to 300 minutes/month
| Free with 10 prompts per day. UsingOpen Studio desktop app is $19 USD one-time purchase, or ¥99 CNY in mainland China.
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| Key features | - Web content capture and saving from browser
- PDF, Word, and PPT file parsing into searchable documents
- Automatic OCR for images and document scans
- Audio and video transcription with summaries and key frames
- Natural language search across knowledge base
- AI-powered question answering with source citations
- WeChat and QQ message forwarding to knowledge base
- RSS feed subscription and auto-import
- AI Agent for file organization and workflow execution
- Open source code with self-hosting and offline support
| - Access to 20+ open-weight AI models including DeepSeek, Qwen, GLM, Gemma, GPT-OSS, Kimi K3 and MiniMax M3
- No account required, no sign-up, no email or password needed
- 10 free prompts per day, reset at midnight UTC
- Chat history saved locally on your device, never sent to servers
- Streaming responses with visible reasoning for thinking models
- Compare two models side by side in the same conversation
- Live model availability status and real-time capacity information
- Responsive design, installable as standalone mobile app
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| What makes it different | - Unified content collection from multiple sources including chat apps, RSS, and web without changing habits
- Automatic understanding and indexing of all content types for search and AI use
- AI capabilities integrated directly into other AI tools via Skill integration
- Free tier with generous quotas for most users before paid upgrade needed
| - Complete privacy - chat history stays only on your device and is never sent to servers
- Model picker with real-time availability, not a single locked-in assistant
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| Free plan | Not given
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| Open source | Not given
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| Platforms | Not given
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| Public API | Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 18 ● no change since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 4 | 1 |
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| Citation Flow (Majestic) | 29 | 17 |
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| Referring domains (Majestic) | 227 | 5 |
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OmniBox
UsingOpen