Merlin AI Reviews 2026: Ratings, Ads, and Complaints | Zemith

Merlin AI scores 4.4 on Trustpilot, but paying users report sponsored ads in answers and frozen sidebars.

By KevinEvery rating read on 19 October 2026

We read Merlin AI's reviews on 19 October 2026. Trustpilot rates getmerlin.in 4.4 out of 5 from 3,200+ reviews, while G2 rates it 4.6 out of 5 from 80+ reviews. Despite high overall ratings, 2026 customer feedback across Reddit (r/Merlin_AI) and Trustpilot reveals intense user backlash over sponsored third-party ads inserted into query responses, endless freezing in the browser sidebar extension, hidden rate-limits on flagship models, and strict auto-renewals.

Zemith Plus gives you 1.5M transparent credits, zero ads, and real Office files for $15.99/mo.

100% ad-free AI workspace: no sponsored links, affiliate recommendations, or third-party ads inserted into your answers.

Switch between GPT, Claude, Gemini, Grok, DeepSeek and Perplexity Sonar with transparent credit usage and zero hidden daily throttles.

Generate real Word (.docx), PowerPoint (.pptx), Excel (.xlsx) and PDF files in a cloud sandbox, with live document preview.

Dedicated standalone Web, iOS and Android apps with full sync—never trapped in an unresponsive browser sidebar extension.

Merlin Pro ($19) + tools~$39.00/mo

Merlin Pro $19/mo + Ad-free/Tool upgrades + Study app $20

Zemith Plus$15.99/mo

1.5M credits · Zero ads · Multi-model chat + Creative Studio + Library + Office files

Here is how Merlin AI is rated on the two biggest review platforms.

4.4

Trustpilot, 3,200+ reviews · read 19 Oct 2026

Trustpilot reviewers praise Merlin's quick browser sidebar for email replies and YouTube summaries, while recent 2026 complaints center on intrusive in-chat advertisements, severe sidebar lag, and unexpected annual billing renewals:

5 stars75%

4 stars11%

3 stars3%

2 stars2%

1 star9%

4.6

G2, 80+ reviews · read 19 Oct 2026

G2 reviewers appreciate having multi-model access right next to web search results, but report that heavy research tasks choke the sidebar and that top reasoning models run out faster than advertised:

5 stars78%

4 stars14%

3 stars4%

2 stars2%

1 star2%

Ratings and user feedback read on 19 October 2026 from verified public listings on trustpilot.com/review/getmerlin.in, g2.com/products/merlin-ai/reviews, and discussions on r/Merlin_AI.

These are the three complaints Merlin AI users repeat most.

Browser extension freezes in endless 'thinking...' loops, crashing tabs and locking up Chrome.

“The Chrome sidebar constantly hangs on 'thinking...' without ever completing the response. It slows down my whole browser, crashes active tabs, and forces me to restart Chrome repeatedly.”Trustpilot, 1 star, 12 Oct 2026

“Whenever you paste a long article or ask for a detailed table, the extension just locks up. Browser extensions simply cannot handle heavy workspace workflows.”Reddit, Community review, 15 Oct 2026

On ZemithZemith runs as a dedicated, high-performance web workspace and native iOS/Android apps backed by cloud sandboxes and resilient stream reconnects. You never suffer from browser extension memory leaks, tab crashes, or lost prompt history.

Hidden rate-limits on flagship models and aggressive auto-renewals with no-refund policies.

“They advertise unlimited queries, but after barely 15 questions with Claude 3.5 Sonnet or GPT-4o, you get hit with a cooldown timer telling you to wait until tomorrow or pay for more credits.”Trustpilot, 1 star, 11 Oct 2026

“Auto-renewal billed me an annual subscription with no advance notice, and support cited their strict no-refund policy when I requested a cancellation 3 hours later.”Trustpilot, 1 star, 17 Oct 2026

On ZemithZemith provides transparent credit accounting with 1.5M credits on Plus ($15.99/mo) and 3M on Professional ($29.99/mo). Every model's credit rate is posted upfront with zero hidden throttle ceilings, plus transparent self-service billing with one-click cancellation.

Make images and video.

The best image and video models, in one studio.

Get finished work, not just answers.

Ask once and get docs, slides, sheets and PDFs that are ready to send.

Hand off the busywork.

Cloud tasks keep working while you're away, on a schedule if you like.

Learn from any file.

Turn PDFs, links and YouTube videos into podcasts, quizzes, flashcards and mind maps.

Stay in flow.

Keep chats, notes and whiteboards open side by side in FocusOS, and switch without losing your place.

Connects to the apps you already use.

Notion, Linear, Canva, Airtable and more. It asks before it creates or changes anything.

Talk to it. Show it your screen.

Real-time voice that can see your camera or screen.

Build it once. Run it anytime.

Chain models and tools on a visual canvas, from one prompt to a finished promo video.

Put routine work on autopilot.

Briefings, reports and reminders run on a schedule and are ready when you need them.

Turn any recording into notes.

Upload a meeting or lecture and get a timestamped transcript you can summarize in one click.

Listen on the go.

Turn docs and notes into natural audio, in many voices or your own.

Use the best model for each job.

GPT, Claude, Gemini, Grok, DeepSeek and more in one chat. Switch whenever you like.

This is what Merlin AI users like, and Zemith does it better.

Quick keyboard shortcut access for summaries and text drafting while browsing.

“The keyboard shortcut (Cmd+M) to quickly summarize long articles or YouTube videos without leaving the page is very convenient.”G2, 5 stars, 08 Oct 2026

On Zemith tooZemith offers deep content summarization, YouTube-to-blog transformation, and Study Library notebooks that ingest up to 50 URLs and documents into 2-speaker audio podcasts and interactive flashcard decks.

Ability to test multiple AI models in one general subscription.

“Having GPT, Claude, and Gemini in one place saves me from subscribing to multiple individual AI platforms.”Trustpilot, 5 stars, 10 Oct 2026

On Zemith tooZemith gives you seamless mid-chat switching across GPT, Claude, Gemini, Grok, DeepSeek, Qwen, and Perplexity Sonar while keeping complete context, plus Creative Studio (Flux 2, Veo 3.1, Kling) and full document sandboxing.

Capability	Merlin Pro ($19/mo)	Merlin Max ($29/mo)	Zemith Plus	Zemith Professional
Monthly price (USD) Billed monthly / yearly	$19.00/mo ($14.25/mo billed annually)	$29.00/mo ($21.75/mo billed annually)	$15.99/mo ($179.88/yr — $14.99/mo)	$29.99/mo ($299.88/yr — $24.99/mo)
AI model families Switch mid-chat	GPT, Claude, Gemini (daily throttled)	GPT, Claude, Gemini, Llama (higher quota)	GPT, Claude, Gemini, Grok, DeepSeek, Kimi, Qwen, GLM, MiniMax, Mistral, Sonar	All Plus models + Claude Opus, GPT 6 Sol & Astra, Gemini 4 Argon, Sonar Pro
Mid-chat model switching & routing Compare providers in one thread	Switch model in sidebar header	Switch model in sidebar header	Switch between GPT, Claude, Gemini, Grok & DeepSeek inside the same conversation	Switch mid-chat across every flagship reasoning model + custom default model
Monthly usage & credit transparency Predictable allowance	Daily query caps; advanced models throttled	Expanded daily limits with soft cooldowns	1.5M credits/mo + visible per-model credit cost + optional top-ups	3M credits/mo + Max Mode + visible per-model cost + optional top-ups
Web search & Deep Research Multi-step cited reports	Web search integration (injected sponsored ads reported)	Web search integration	Clean, 100% ad-free live web search + multi-step cited Deep Research reports + Perplexity Sonar	Clean ad-free live web search + Deep Research + Perplexity Sonar Pro
Image generation & editing studio Text-to-image, inpaint & upscale	Basic image generation in sidebar	Image generation	Creative Studio: Nano Banana, GPT Image, Flux 2, Seedream + bg removal, 4x upscale, generative fill, object swap	Full Creative Studio + highest-tier image models & batch editing
AI video generation Text-to-video & image-to-video	Not included	Not included	Veo 3.1, Kling, Wan, Seedance 2.5 in Creative Studio	Veo 3.1, Kling, Wan, Seedance 2.5 + Motion control workflow node
Finished Office file deliverables Real downloadable files	Raw text / markdown copying only	Raw text / markdown copying only	Word (.docx), PowerPoint (.pptx), Excel (.xlsx) & PDF built in cloud sandbox with live preview	Word (.docx), PowerPoint (.pptx), Excel (.xlsx) & PDF built in cloud sandbox with live preview
Document Library & Study Studio Up to 50 sources per notebook	Basic PDF chat (crashes on large files)	Basic document chat	2-speaker AI podcasts, interactive quizzes, flashcards, mind maps, infographics, slide decks & phone call with sources	2-speaker AI podcasts, interactive quizzes, flashcards, mind maps, infographics, slide decks & phone call with sources
Background & scheduled Cloud agents Runs with the app closed	Not included (browser extension only)	Not included	Interactive chat + visual workflows	Zemith Cloud: up to 35 recurring cron schedules, 3 concurrent background tasks, email & push alerts
Connected app plugins with approval Human-in-the-loop actions	Not included	Not included	Notion, Linear, Canva, Airtable, Google Calendar, Gmail & Drive — asks approval before any write	Notion, Linear, Canva, Airtable, Google Calendar, Gmail & Drive — works in chat & Cloud agents
Live Voice with camera & screen sharing Real-time multimodal voice	Not included	Not included	Real-time voice conversation that sees your live camera or shared screen	Real-time voice conversation that sees your live camera or shared screen
Speech Studio (STT, TTS & Voice Cloning) Audio transcription & synthesis	Basic speech synthesis	Basic speech synthesis	Timestamped speaker-diarized Speech-to-Text + multi-speaker Text-to-Speech + custom voice cloning	Timestamped speaker-diarized Speech-to-Text + multi-speaker Text-to-Speech + custom voice cloning
Visual Workflow Builder Node-based automation canvas	Not included	Not included	Chain prompts, web search, image gen, cutout & video nodes into reusable workflows	Full Workflow Studio including Motion video transfer nodes
AI Notes, Whiteboard & FocusOS Side-by-side workspace apps	Sidebar overlay only (prone to freezing)	Sidebar overlay only	Rich-text AI Notes, infinite canvas Whiteboard, and FocusOS split-screen tabs	Rich-text AI Notes, infinite canvas Whiteboard, and FocusOS split-screen tabs
Projects, memory, teams & 50+ quick tools Web, iOS & Android	Browser extension shortcuts	Browser extension shortcuts	Projects, editable memory, shared team threads, 50+ AI tools (humanizer, rewriter, YouTube to blog) on Web, iOS & Android	Projects, editable memory, shared team threads, 50+ AI tools on Web, iOS & Android

Capability

Merlin Pro ($19/mo)

Merlin Max ($29/mo)

Zemith Plus

Zemith Professional

Monthly price (USD)

Billed monthly / yearly

$19.00/mo ($14.25/mo billed annually)

$29.00/mo ($21.75/mo billed annually)

$15.99/mo ($179.88/yr — $14.99/mo)

$29.99/mo ($299.88/yr — $24.99/mo)

AI model families

Switch mid-chat

GPT, Claude, Gemini (daily throttled)

GPT, Claude, Gemini, Llama (higher quota)

GPT, Claude, Gemini, Grok, DeepSeek, Kimi, Qwen, GLM, MiniMax, Mistral, Sonar

All Plus models + Claude Opus, GPT 6 Sol & Astra, Gemini 4 Argon, Sonar Pro

Mid-chat model switching & routing

Compare providers in one thread

Switch model in sidebar header

Switch between GPT, Claude, Gemini, Grok & DeepSeek inside the same conversation

Switch mid-chat across every flagship reasoning model + custom default model

Monthly usage & credit transparency

Predictable allowance

Daily query caps; advanced models throttled

Expanded daily limits with soft cooldowns

1.5M credits/mo + visible per-model credit cost + optional top-ups

3M credits/mo + Max Mode + visible per-model cost + optional top-ups

Web search & Deep Research

Multi-step cited reports

Web search integration (injected sponsored ads reported)

Web search integration

Clean, 100% ad-free live web search + multi-step cited Deep Research reports + Perplexity Sonar

Clean ad-free live web search + Deep Research + Perplexity Sonar Pro

Image generation & editing studio

Text-to-image, inpaint & upscale

Basic image generation in sidebar

Image generation

Creative Studio: Nano Banana, GPT Image, Flux 2, Seedream + bg removal, 4x upscale, generative fill, object swap

Full Creative Studio + highest-tier image models & batch editing

AI video generation

Text-to-video & image-to-video

Not included

Veo 3.1, Kling, Wan, Seedance 2.5 in Creative Studio

Veo 3.1, Kling, Wan, Seedance 2.5 + Motion control workflow node

Finished Office file deliverables

Real downloadable files

Raw text / markdown copying only

Word (.docx), PowerPoint (.pptx), Excel (.xlsx) & PDF built in cloud sandbox with live preview

Document Library & Study Studio

Up to 50 sources per notebook

Basic PDF chat (crashes on large files)

Basic document chat

2-speaker AI podcasts, interactive quizzes, flashcards, mind maps, infographics, slide decks & phone call with sources

Background & scheduled Cloud agents

Runs with the app closed

Not included (browser extension only)

Not included

Interactive chat + visual workflows

Zemith Cloud: up to 35 recurring cron schedules, 3 concurrent background tasks, email & push alerts

Connected app plugins with approval

Human-in-the-loop actions

Not included

Notion, Linear, Canva, Airtable, Google Calendar, Gmail & Drive — asks approval before any write

Notion, Linear, Canva, Airtable, Google Calendar, Gmail & Drive — works in chat & Cloud agents

Live Voice with camera & screen sharing

Real-time multimodal voice

Not included

Real-time voice conversation that sees your live camera or shared screen

Speech Studio (STT, TTS & Voice Cloning)

Audio transcription & synthesis

Basic speech synthesis

Timestamped speaker-diarized Speech-to-Text + multi-speaker Text-to-Speech + custom voice cloning

Visual Workflow Builder

Node-based automation canvas

Not included

Chain prompts, web search, image gen, cutout & video nodes into reusable workflows

Full Workflow Studio including Motion video transfer nodes

AI Notes, Whiteboard & FocusOS

Side-by-side workspace apps

Sidebar overlay only (prone to freezing)

Sidebar overlay only

Rich-text AI Notes, infinite canvas Whiteboard, and FocusOS split-screen tabs

Projects, memory, teams & 50+ quick tools

Web, iOS & Android

Browser extension shortcuts

Projects, editable memory, shared team threads, 50+ AI tools (humanizer, rewriter, YouTube to blog) on Web, iOS & Android

Projects, editable memory, shared team threads, 50+ AI tools on Web, iOS & Android

Our verdict: Merlin AI is a handy browser shortcut, but sponsored ads, freezing loops, and lack of real workspace tools push power users to Zemith.

Trustpilot rates Merlin AI 4.4 out of 5 from 3,200+ reviews, but user complaints surge around sponsored ads inserted into answer streams and browser sidebar freezes.

Hidden daily rate-limits on top reasoning models mean Merlin Pro ($19/mo) frequently throttles heavy research and development workflows.

Zemith Plus ($15.99/mo) delivers a 100% ad-free workspace with 1.5M transparent credits, multi-model switching, Creative Studio (Flux 2, Veo 3.1), and downloadable Word/Excel files.

If you are looking for a complete, ad-free multi-model workspace, explore our Multi-model AI chat platform, or review the complete Merlin pricing breakdown below.

These are the questions people ask about Merlin AI reviews.

Does Merlin AI really put ads in answers?

Yes. Multiple users on Trustpilot and Reddit report that Merlin AI inserts sponsored recommendations, commercial partner links, and third-party promotional snippets directly into query answer streams, even on paid Pro accounts.

Why does the Merlin AI Chrome extension freeze?

Because browser extensions execute within the shared memory and process bounds of Chrome tabs, heavy multi-model streaming, large document inputs, and complex scripts frequently cause memory leaks and endless 'thinking...' hangs. Standalone apps like Zemith avoid this issue entirely.

Is Merlin AI Pro worth $19 a month in 2026?

If you strictly need a quick browser sidebar shortcut for drafting emails and summarizing short articles, Merlin can be convenient. However, for serious work requiring uninterrupted reasoning, real file generation (Word, Excel, PowerPoint), and zero ads, Zemith Plus offers substantially more value for $15.99/month.

Can I cancel my Merlin AI subscription and get a refund?

Merlin enforces a strict no-refund policy upon auto-renewal. Users recommend disabling auto-renewal in account settings well in advance of the billing date to prevent unexpected annual charges.

What is the best ad-free alternative to Merlin AI?

Zemith Plus ($15.99/month) is the top alternative, providing 1.5M transparent credits across GPT, Claude, Gemini, Grok, DeepSeek, and Perplexity Sonar in a 100% ad-free standalone workspace with Creative Studio and Library.

Company	Plan	Price
Northwind	Team	$12 per seat
Contoso	Business	$18 per seat
Fabrikam	Pro	$24 per seat

Merlin AI scores 4.4 on Trustpilot, but paying users report sponsored ads in answers and frozen sidebars.

Zemith Plus gives you 1.5M transparent credits, zero ads, and real Office files for $15.99/mo.

Here is how Merlin AI is rated on the two biggest review platforms.

These are the three complaints Merlin AI users repeat most.

Sponsored third-party ads and affiliate links injected directly into query responses, even for paying subscribers.

Browser extension freezes in endless 'thinking...' loops, crashing tabs and locking up Chrome.

Hidden rate-limits on flagship models and aggressive auto-renewals with no-refund policies.

Every workspace tool included in one subscription.

Make images and video.

Get finished work, not just answers.

Hand off the busywork.

Learn from any file.

Stay in flow.

Connects to the apps you already use.

Talk to it. Show it your screen.

Build it once. Run it anytime.

Put routine work on autopilot.

Turn any recording into notes.

Listen on the go.

Use the best model for each job.

This is what Merlin AI users like, and Zemith does it better.

Quick keyboard shortcut access for summaries and text drafting while browsing.

Ability to test multiple AI models in one general subscription.

How Merlin AI compares with Zemith on cost, models, ads and workspace tools.

Our verdict: Merlin AI is a handy browser shortcut, but sponsored ads, freezing loops, and lack of real workspace tools push power users to Zemith.

These are the questions people ask about Merlin AI reviews.

Does Merlin AI really put ads in answers?

Why does the Merlin AI Chrome extension freeze?

Is Merlin AI Pro worth $19 a month in 2026?

Can I cancel my Merlin AI subscription and get a refund?

What is the best ad-free alternative to Merlin AI?

Try Zemith free — 100% ad-free multi-model AI with real documents and Creative Studio.

Read these next to compare the other tools.