“Split Chat”: compare answers
You open several panes, each with a different model. What you type goes to every pane, and the answers appear side by side.
AI tools · On your computer
Msty pricing, use cases, and first steps
Msty Studio is a desktop app that brings AI models installed on your machine and online AI models together in one place. What sets it apart: you ask several models the same question at once and compare the answers side by side. Your conversations stay stored on your computer.
Msty has a free plan. Prices checked on October 3, 2026 on the vendor’s official page.
MstyLocal and online models, side by side in one window- Vendor
- CloudStack, LLC
- Free plan
- Yes
- Page checked on
- October 3, 2026
What Msty does
Who it’s for: curious people who want to compare several AI models, local or online, and who don’t mind an app with a lot of settings.
Chat with a local model model
Msty installs and runs AI models on your computer. Once the model is downloaded, the conversation works without internet.
Add online models with your own key
You connect online services by pasting an API key you get from them. You pay those services by usage, and your text then goes to their servers.
Also
- “Knowledge Stacks”: your documents as reference
- Personas and group conversations
- Explore several directions
- Msty Studio on the web
Msty pricing
Prices published in dollars. The online services you connect with your key are billed separately, by those services.
| Plan | Price | Who it’s for |
|---|---|---|
| Free | $0 | Personal use only |
| Aurum | $149 per user per year | Professional use |
| Aurum Lifetime | $349 per user, one-time | People who plan to use it for several years |
| Enterprise & Teams | Custom pricing | Teams of at least 5 people |
What the free plan includes
The desktop app with its main features: local and online models, “Split Chat,” personas, “Knowledge Stacks.” But the free license is for personal use only, not for work.
Nova’s advice
For personal use, the free version is enough. At work, the vendor requires an Aurum or Enterprise license. If you only want a free local model for the office, look at Jan, Ollama, or LM Studio instead. Msty is worth its price if comparing several models is part of your daily routine.
A first try, in 10 minutes
Your data. Your conversations and documents are stored on your computer. The vendor says it collects nothing about how you use the app.
What it does less well
- The free version is not permitted for work. Writing a business report with it falls outside the license.
- A local model is still weaker and slower than ChatGPT, Claude, or Gemini, and depends on how powerful your computer is.
Ask two AI models the same questionMsty- Open Msty Studio and start a conversation with your local model.
- At the top right of the window, click “Add Split Chat.” A second pane opens.
- In this second pane, choose another model.
- Type the prompt below: it goes to both panes at once.
- Compare the two answers and keep the clearer one.
The prompt to copy
Rewrite this follow-up email in a friendly, direct tone, in five lines at most: [paste your email, with no confidential data]
Alternatives to Msty
LM Studio
Free local AI, usable at work, with an interface in French.
Jan
Free and open, simpler for a first try at local AI.
Ollama
The most widely used local engine, lean and free.
Mammouth
To compare the major online models with one subscription, without installing anything.
OpenRouter
A single point of access to a very large number of online models, paid by usage.
Frequently asked questions about Msty
How much does Msty cost?
Free: $0; Aurum: $149 per user per year; Aurum Lifetime: $349 per user, one-time; Enterprise & Teams: custom pricing. Prices checked on October 3, 2026 on the vendor’s official page.
Can you use Msty for free?
Yes. The desktop app with its main features: local and online models, “Split Chat,” personas, “Knowledge Stacks.” But the free license is for personal use only, not for work.
What happens to my data with Msty?
Your conversations and documents are stored on your computer. The vendor says it collects nothing about how you use the app.
What are the alternatives to Msty?
LM Studio: Free local AI, usable at work, with an interface in French. Jan: Free and open, simpler for a first try at local AI. Ollama: The most widely used local engine, lean and free. Mammouth: To compare the major online models with one subscription, without installing anything. OpenRouter: A single point of access to a very large number of online models, paid by usage.
Official pages consulted
Page checked on October 3, 2026. Brands are named to identify the tools. No affiliation.