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Monica vs SurfMind

Two fact sheets from our own research, side by side — pricing, platforms, API access and status re-checked by us rather than quoted from the vendors. SurfMind publishes a starting price ($39); Monica does not. Both have a free tier. Only Monica ships a public API.

MonicaMulti-model AI assistant living in a browser sidebarSurfMindBrowser extension that adds a context-aware AI chat, backed by 100+ models, to any web page

Side by side

FactMonicaSurfMind
CategoryBrowser Extensions & CopilotsBrowser Extensions & Copilots
Pricing modelFreemiumFreemium
Starts at—$39 one_time
Public APIYesNo
PlatformsWeb, macOS, Windows, iOS, Android, API, Chrome ExtChrome Ext
CompanyButterfly Effect Pte. Ltd.—
Launched2023—
Last verifiedSep 6, 2026Sep 1, 2026

What our research says

Monica

Worth it if you want one subscription that reaches GPT, Claude and Gemini from wherever you already are; pointless if you live inside a single vendor's app and are happy there. The value is the sidebar and the model switching, not the intelligence, which is all rented.

Pros

  • Genuinely wide model roster, including image and video models, under one credit pool
  • Extension plus desktop plus iOS/Android means the same history follows you across devices
  • Separate prepaid developer API at platform.monica.im if you want the same aggregation in code

Cons

  • Prices are only visible after loading the pricing app, and the tier names have already shifted once (Unlimited became Max)
  • Advanced credits reset monthly, so heavy image or video use burns a Pro plan fast
  • You are a reseller's customer — outages, rate limits and model deprecations arrive second-hand
  • monica.cn is a separate China-market build run by a different legal entity, which confuses support and privacy expectations

SurfMind

SurfMind's model list and one-time-payment Pro tier stand out in a category that is usually subscription-only, and support for bringing your own API key or local model means it is not locked to SurfMind's own usage limits. No company name is disclosed, and browser extensions with page-reading permissions carry more trust exposure than a typical web app, so that gap matters more here than for most tools in this batch.

Pros

  • Works across Chrome, Firefox, Safari, Edge, Opera, Brave and Arc
  • One-time Pro purchase instead of a recurring subscription
  • Supports bringing your own API key or a local model, not just SurfMind's own quota
  • Free tier remains usable indefinitely, not just a trial

Cons

  • No company or founder name disclosed anywhere checked
  • A browser extension with page-reading and automation permissions is a meaningful trust decision about an anonymous vendor
  • No web or mobile app - functionality is entirely tied to having the extension installed

Which one fits

Choose Monica if you need

  • People who compare answers across GPT, Claude and Gemini without paying three subscriptions
  • Reading and summarising foreign-language pages and PDFs in-place while browsing
  • Light users who want AI attached to the browser rather than in another tab

Choose SurfMind if you need

  • Users who want an AI chat panel aware of whatever page they are on, across most major browsers
  • Anyone who would rather pay once for Pro than commit to a recurring AI subscription

More comparisons

All Monica alternatives →Browse all Browser Extensions & Copilots →