AI models

Muse Fast & Muse Smart: pick your speed

Muse gives you two AI engines. Muse Fast answers everyday questions in a blink. Muse Smart takes a moment longer to reason through complex problems and code.

Free plan · 2 requests a dayNo account neededChats stay in your browser
Muse model picker
Two engines

Quick answers or deeper thinking

Pick the model per message from the composer. Fast for speed, Smart when the problem is hard. Both work with pages, images and voice.

  • Muse Fast — quick answers for everyday tasks
  • Muse Smart — deeper reasoning & complex code
  • Change your default in Settings
  • Same price — both included in every plan
Muse model picker: Muse Fast and Muse Smart
Compare

Which one should I use?

Muse FastMuse Smart
Best forEveryday questions, rewriting, emails, summariesHard problems, complex code, multi-step reasoning
SpeedQuickest repliesTakes a little longer to think
CodingSmall snippets and quick fixesDebugging, reviews, refactors, tests
SwitchPer message in the composerPer message in the composer
DefaultSet in Settings → Default modelSet in Settings → Default model
FAQ

Common questions

Which models power Muse Fast and Muse Smart?

Muse sends requests through OpenRouter to leading AI models, such as models from OpenAI and Google. We pick and update the models behind Fast and Smart to keep answers fast and accurate.

Does Smart cost more requests?

No. Each message counts as one request whichever model you choose.

Can I set Smart as the default?

Yes. Open Settings → Default model and choose Smart.

Your AI assistant is one click away

Add Muse to Chrome for free. Two AI requests a day on the free plan — upgrade only if you need more.