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“I want to try several local AIs and compare their answers side by side”

The curious who want a polished interface and to find out which free model suits them best before committing, without juggling software.

Recommended agent: Msty
💰 $0 for the free version, forever according to the publisher. Advanced features and Web version: Aurum at $149/year, or $349 as a one-time payment (official pricing page, rechecked on November 1, 2026). Level: Easy 🌍 United States Permanent free version, enough to chat with local models. Aurum ($149/year or $349 one-time) unlocks the Web version and the advanced features. Proprietary application (not open source)

Price verified on November 1, 2026.

Msty (msty.ai), CloudStack's studio for chatting with local models (via Ollama, llama.cpp or MLX) or online ones, in one polished window. Its Split Chats ask the same question to several models and display the answers side by side; its Knowledge Stacks let you query your documents while keeping them local.

How it works

Trigger: You ask a question — to one model, or to several at once in a Split Chat — sends your question to the chosen model(s), local or online, and displays the answers side by side to compare, and you get answers compared at a glance, to choose the model that really suits you.

Step-by-step setup

  1. Install Msty from the official site (msty.ai) and follow the welcome wizard: it suggests a first local model to download, suited to your machine.
  2. Download one or two more models from the built-in catalog.
  3. Use Split Chats: ask the same question to several models and compare the answers side by side.
  4. Create a Knowledge Stack with your documents to query them while keeping the files at home.
⚠️ Guardrails: Msty mixes local and online models in the same window: always look at which model is answering before pasting a sensitive text into it — an “online” model sends your data to the provider.
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Frequently asked questions

What is Aurum, Msty's paid plan, for?

Aurum ($149/year or $349 as a one-time purchase, prices verified on November 1, 2026) unlocks the advanced comparison and productivity features. Basic local use remains free.

What is a Split Chat?

The same question sent to several models at the same time, with the answers side by side: ideal for comparing styles and spotting errors before choosing your everyday model.

Do my texts stay private with Msty?

Yes if you only use downloaded local models. If you plug in an online model (via an API key), your texts go back out to that provider — Msty displays each model's type, stick to the “local” ones for privacy.

Other agents for this problem

LLM Council

I want a solid second opinion before a big decision

Free software (public repository, no open-source license); you pay for the model calls (about 2 to 3 times the cost of asking a single model).

CrewAI

I want a team of agents that splits up a big job

$0 for the open-source framework and the basic platform (50 runs/month); enterprise platform by quote, plus the cost of the model calls.

LangGraph

I want a custom agent workflow, with every step under control

Free open-source library; you pay for the model calls, and for LangSmith if you take it (free to start, then $39/user/month).

AutoGen

I want agents that debate each other until they find the solution

Free and open source; you pay for the model calls used by the agents — a multi-round debate costs several times a simple answer.

MCP (Model Context Protocol)

I want to plug my own tools and data into my agents

Free: it's an open standard, not a product; each tool you plug in keeps its own pricing.

See also

“I want a solid second opinion before a big decision” — LLM Council“I want a team of agents that splits up a big job” — CrewAI“I want a custom agent workflow, with every step under control” — LangGraph

Profile updated on November 1, 2026 — see what's new at the Directory.