kitio.aiOpenCat vs Fluid
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. OpenCat starts at See pricing page and Fluid starts at See pricing page. Check both pricing pages for current plans.
At a glance
Best for
Category
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Native Mac and iOS apps
- Voice chat
- Image chat
- Siri Shortcuts
- Keyboard input in other apps
- Team sharing
- Runs Llama 3 locally
- Works offline
- Voice dictation
- Global keyboard shortcut
- Private API server for business
| Feature | OpenCat | Fluid |
|---|---|---|
| Best for | Native chat client for Mac and iOS that works with AI models | Private offline AI assistant for Macs with Apple Silicon |
| Category | Chat assistants | Chat assistants |
| Pricing model | Freemium | Freemium |
| Starting price | See pricing page | See pricing page |
| Free plan | Yes | Yes |
| Made by | OpenCat | Fluid |
| Based in | – | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
|
|
Pricing compared
OpenCat starts at See pricing page and Fluid starts at See pricing page. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
Prices in USD, checked Oct 29, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
OpenCat
- Native apps instead of a web page
- Works through Siri and the keyboard
- Markdown rendering
- Apple platforms only
- Pricing is not shown on the site
- Depends on connected AI services
Fluid
- Chats never leave your Mac
- Works without internet access
- Simple one-step install
- Apple Silicon Macs only
- Needs several GB of disk space
- Pricing is not stated on the homepage
Which one should you choose?
Choose OpenCat if you want:
- Native apps instead of a web page
- Works through Siri and the keyboard
- Markdown rendering
Watch out: apple platforms only.
Choose Fluid if you want:
- Chats never leave your Mac
- Works without internet access
- Simple one-step install
Watch out: apple silicon macs only.
OpenCat vs Fluid FAQ
What is the difference between OpenCat and Fluid?
OpenCat: Native chat client for Mac and iOS that works with AI models. Fluid: Private offline AI assistant for Macs with Apple Silicon. Both are chat assistants tools.
Is OpenCat or Fluid cheaper?
OpenCat starts at See pricing page and Fluid starts at See pricing page. Check both pricing pages for current plans.
Do OpenCat and Fluid have free plans?
OpenCat: Yes. Fluid: Yes.
Who makes OpenCat?
OpenCat is made by OpenCat.
Who makes Fluid?
Fluid is made by Fluid.
Which should I choose, OpenCat or Fluid?
Choose OpenCat if you value native apps instead of a web page and works through siri and the keyboard. Choose Fluid if you value chats never leave your mac and works without internet access.