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Head to head · 2026

Merlin vs UniJump

Pricing, free plans, ratings, features, pros and cons, side by side. Where one comes out ahead, we mark it.

Merlin

Browser AI assistant that brings ChatGPT, Claude, and other models to any website with one shortcut

4.0$15/mo

Visit Merlin (opens Merlin in a new tab)

UniJump

Cmd+J anywhere on the web to summarize the page, rewrite a sentence, or translate on the…

3.4Free

Visit UniJump (opens UniJump in a new tab)

Who comes out ahead

Based only on the facts in our directory. The right pick still depends on the job you need done.

  • Lower starting price

    Not comparable

    Not comparable: UniJump does not list a price

  • Free plan

    Tie

    Both have one

  • Higher rating

    Merlin

    4.0 against 3.4

  • Same job?

    Yes

    Both are Productivity tools

Side by side

Compared onMerlinUniJump
Our rating4.0Better3.4
Starts at$15/moFree
Free planYesYes
CategoryProductivityProductivity
Plans
  • Free$0
  • Pro$29/mo, or $19/mo billed yearly ($228/yr)
  • Teams$19 per seat/mo, or $15 billed yearly ($180/yr); 2-seat minimum
Free
Key features
  • Ctrl/Cmd+M shortcut for AI access on any website
  • Access to GPT-4, Claude 3 Opus, Gemini, DeepSeek, and Mistral Large from one interface
  • Dedicated summarization for YouTube videos, PDFs, and articles
  • Native buttons inside Gmail, LinkedIn, and X for drafting content
  • Image generation across 20-plus models and aspect ratios
  • In-page AI chat access via keyboard shortcut or widget
  • Text summarization and paraphrasing
  • Sentence completion suggestions
  • Language translation on the spot
  • Open source, no data collection or storage
Pros
  • Free tier's 102 daily queries is generous enough for real evaluation before paying
  • Single subscription replaces separate ChatGPT Plus, Claude Pro, and Gemini subscriptions
  • Native integration inside Gmail and LinkedIn saves switching tabs constantly
  • Open-source code lets anyone verify its no-data-collection claim directly
  • Completely free, only requires a standard free OpenAI account
  • Works in-context on any webpage, no tab-switching required
Cons
  • 'Unlimited fair access' marketing overstates a Pro plan that's actually credit-capped
  • Real usage cap (around $100 of model cost) isn't disclosed upfront in plan marketing
  • Browser-extension dependence means no dedicated mobile app experience
  • Chrome-only currently, no support for other browsers
  • Requires a separate OpenAI account and its own usage limits/costs
  • Feature set is intentionally narrow (chat, summarize, rewrite) versus a fuller AI writing suite
CompanyFoyer, founded 2021UniJump

Prices come from each vendor's pricing page, last checked 20260826. Check the vendor before you buy.

FAQ

Questions people ask

Is Merlin better than UniJump?

In our reviews Merlin scores 4.0 and UniJump scores 3.4. The better pick depends on the job. Merlin: Browser AI assistant that brings ChatGPT, Claude, and other models to any website with one shortcut. UniJump: Cmd+J anywhere on the web to summarize the page, rewrite a sentence, or translate on the spot - free, open source, no signup, stores no personal data.

Which is cheaper, Merlin or UniJump?

Merlin: from $15/mo. UniJump: free.

Do Merlin and UniJump have free plans?

Yes, both have a free plan.

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