The Best Lumo Alternative for Professionals
Okara is a powerful, privacy-first Lumo alternative offering encrypted AI chat, shared team workspaces, and access to the latest open-source LLMs — all in one place. Ideal for researchers, founders, analysts, and creatives who need a secure AI platform without locked-in proprietary systems.
Powered by the best open-source AI models, self-hosted on Okara
Why Professionals Are Switching from ChatGPT to Okara
If you're a lawyer, doctor, founder, analyst, researcher, or work with sensitive information, Okara is the best ChatGPT alternative designed for professionals who need privacy, control, and shared intelligence.

Privacy-First by Design
Most AI tools process or store your data in ways you can't control. Okara takes a fundamentally different approach:
Encrypted-at-rest chat & file storage
Your conversations, uploads, and workspace memory remain encrypted and safe.
Zero training on your data
Your prompts, documents, PDFs, and conversations never train the models.
Client-side key generation
Your private keys never leave your device.
Full data sovereignty
Your ideas remain yours, never repurposed, never harvested.
Okara is Better Than a Single Closed Model
Okara is the best ChatGPT alternative for experts who want flexibility across writing, research, code, design, and analysis.
Latest open-source LLMs
Get access to the latest models from leading open-source LLMs such as Llama, Kimi, GLM, DeepSeek, Mistral, etc.
Real-time Search
Execute web, Reddit, X/Twitter, and YouTube research using AI and prompting.
Multi-model switching
Switch between different AI models inside the same chat interface without losing context.
All types of models
Get access to reasoning models, Coding assistants, Summarization models, Research models, Image generation models, and more.


Collaborative AI for Teams
ChatGPT is designed for personal chats and isolated history. Okara is the first private AI workspace for teams:
Shared AI Chat
Collaborate with your team inside one AI thread.
Shared context
Everyone works with the same information.
Shared memory
The workspace remembers everything allowed inside it.
Shared intelligence
Your team builds a collective AI that compounds knowledge across people, files, and workflows.
Lumo by Proton Alternative With Team Collaboration, Shared AI Memory & Privacy
Comparing Lumo by Proton vs Okara
| Feature | Lumo by Proton | |
|---|---|---|
| Privacy | Not fully transparent | Encrypted-at-rest + zero training |
| Models | Small model selection | 20+ open-source + image models |
| Team Collaboration | Not built for teams | Full shared workspace |
| Web / Social Research | No | Web + Reddit + X + YouTube |
| Pricing | Credit-based | $15/month flat pricing |
| Data Ownership | Limited ownership | You fully own your data |
What others are saying about Okara, the best Lumo by Proton Alternative
“Lumo was fine for creativity, but Okara gave me the privacy and research tools needed for real client projects. The shared workspace became my team's creative hub.”
Gianni P.
Senior Designer
“Moving from Lumo to Okara was like switching from a sketchpad to a full studio. Encrypted chats, multi-model access, and team collaboration — all in one place.”
Sarah K.
Startup Founder
“I needed safe, compliant AI assistance. Lumo lacked privacy guarantees. Okara finally let me use AI for sensitive audits without worrying about data leaks.”
Omar J.
Security Consultant
Simple pricing for everyone
Start free, upgrade when you're ready. No hidden fees, no surprises.
Pro
500 Pro credits (~5000 messages)
Unlimited Lite model usage
Loved by 26,000+ users
Get 20+ latest Open-Source text and image models
Get real-time insights directly in your chats
Founding User
Lifetime Pro access
Only 100 founding member spots available
Become a founding member and get:
Frequently Asked Questions
Everything you need to know about Okara as a Lumo by Proton alternative
For professionals and teams needing privacy, compliance, and transparency, Okara is currently the best Lumo by Proton alternative. It offers open-source models, encrypted chats, and collaboration features not available in Lumo by Proton.
You may need a Lumo by Proton alternative if you:
- Work with sensitive data
- Need privacy and encryption
- Prefer open-source AI models
- Want team collaboration features
- Want predictable pricing
- Want more control over your AI workflows
Okara solves all of these pain points.
Yes — Okara is a private, encrypted Lumo by Proton alternative. Your chats, files, and documents are encrypted at rest and are never used for model training. Lumo by Proton cannot provide this level of privacy.
Okara is built entirely on top of the latest open-source models like Llama, Qwen, Gemma, Mistral, and DeepSeek. This makes it the best open-source-based Lumo by Proton alternative for professionals.
Yes. Okara allows multi-member collaboration, shared memory, shared context, document upload, and persistent workspaces — features Lumo by Proton does not support in a team-friendly way.
Absolutely. Many professionals use Okara as their default AI tool for:
- Writing
- Research
- Coding
- Data analysis
- Content creation
- Legal / medical analysis
- Brainstorming
- Document workflows
It is designed as a full replacement for Lumo by Proton.
Yes — Okara never uses your chats or files for training. Lumo by Proton does unless you specifically opt out.
- Full data ownership
- Zero training
- Workspace collaboration
- Role-based access (coming)
- Shared memory
- Integrations roadmap
- Enterprise-ready privacy
Businesses prefer Okara because they get control, transparency, and compliance.
Yes — Okara is a flat $15/month with unlimited usage, making it far more affordable than Lumo by Proton's credit-based or usage-based pricing.
Okara is better for privacy-heavy industries because it:
- Encrypts data
- Supports open-source models
- Never trains on your data
- Allows document uploads
- Provides a shared workspace for teams
Professionals working with confidential information overwhelmingly prefer Okara.
Yes. Teams can securely upload a wide range of documents, including:
- PDFs
- DOCX files
- Spreadsheets (CSV, XLSX)
- Presentations
- Images
- Text files
- Research papers
- Case studies
- Product documentation
- Code snippets
These files remain encrypted and private, never used for training any AI models.
Workspace is ideal for:
- Startups & founders needing rapid iteration
- Marketing teams & creative agencies
- Product & UX teams
- Engineering & dev teams
- Research teams & analysts
- Leadership teams for strategy & planning
- Consultants & client-facing teams
- Remote & distributed teams
Any team that collaborates, plans, documents, or solves problems will benefit from Workspace.
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