RUNLOCALAIv38
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SYS · ONLINEUPTIME · 100%2026 · operator-owned
RUNLOCALAI · v38
← Home·/apps·Desktop app

Msty

Hybrid (offline or cloud)

Desktop app focused on side-by-side multi-model chat. Compare local vs cloud answers in one view.

Editorial verdict: “Best 'compare local vs cloud answers' workflow. Niche but well-designed.”

Desktop app
Free tier
Proprietary
★ 4.3 / 5
↗ Homepage

Compatibility at a glance

Which runtime + OS combos this app works against. Source of truth for "will it run on my setup?"

§ Runtimes supported
ollamaopenai-compatanthropicopenaigemini
§ OS / platform
macoslinuxwindows
§ Hardware + model hint
Minimum VRAM
4 GB
Recommended starter model
Llama 3.1 8B Q4_K_M
→ Build the rest of the stack with /stack-builder→ Pick a GPU for this app

What it is

Msty is a desktop chat app whose superpower is side-by-side multi-model comparison: ask the same question to Llama 3.1 8B locally and Claude Sonnet 4.5 in the cloud, see both answers in panels. Excellent for evaluators, prompt engineers, and 'is local good enough yet?' research.

✓ Strengths

  • +Multi-model side-by-side UX is unique in the space
  • +Local + cloud in one chat
  • +Polished UI

△ Caveats

  • −Closed-source
  • −Some advanced features paid

About the Desktop app category

Bundled desktop app with built-in model management.

§ Other desktop app apps
LM Studio

Best 'first install' desktop app for newcomers. Closed-source but the easiest first-run experience.

GPT4All

Best fully-open-source desktop AI bundler. Less polished than LM Studio, fully MIT.

Where to go from here

Stack Builder →

Pre-filled with this app's recommended use case + budget tier. Get the full rig + runtime + model picks.

Back to /apps →

The full directory — filter by category, runtime, OS, privacy posture, or VRAM.

Runtimes (/tools) →

What this app talks to: Ollama, vLLM, llama.cpp, MLX, LM Studio. The upstream layer.

Community benchmarks →

Did this app work for you on a specific rig? Submit the benchmark — it powers the model + hardware pages.