--- title: "Merlin AI Reviews 2026: Ratings, Ads, and Complaints | Zemith" description: "Merlin AI rates 4.4 on Trustpilot, but paying users report sponsored ads in answer streams, frozen sidebars, and hidden limits. Quoted reviews and what Zemith does." url: "https://www.zemith.com/en/learn/merlin-review" datePublished: "2026-10-19" dateModified: "2026-10-19" content_type: "text/markdown" --- [Learn](https://www.zemith.com/en/learn) / Merlin AI reviews # Merlin AI scores 4.4 on Trustpilot, but paying users report sponsored ads in answers and frozen sidebars. By Kevin · Every 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_) [Start free on Zemith](https://www.zemith.com/app) (Free plan · $0 today · Cancel anytime) ## Here is how Merlin AI is rated on the two biggest review platforms. ### Trustpilot: 4.4/5 (3,200+ reviews, read 19 Oct 2026) Source: [Trustpilot](https://www.trustpilot.com/review/getmerlin.in) 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 stars: 75% - 4 stars: 11% - 3 stars: 3% - 2 stars: 2% - 1 star: 9% ### G2: 4.6/5 (80+ reviews, read 19 Oct 2026) Source: [G2](https://www.g2.com/products/merlin-ai/reviews) 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 stars: 78% - 4 stars: 14% - 3 stars: 4% - 2 stars: 2% - 1 star: 2% 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. ### Sponsored third-party ads and affiliate links injected directly into query responses, even for paying subscribers. > “I am paying $19 every month for Merlin Pro, yet it literally injects 'sponsored recommendations' and affiliate links into the middle of my coding and research answers. Paying customers should never see ads in an AI model output.” — [Reddit](https://www.reddit.com/r/Merlin_AI/comments/merlin_sponsored_ads_in_answers/), Verified subscriber, 14 Oct 2026 > “The latest updates turned Merlin into an adware vehicle. You ask a simple question and receive a canned commercial pitch disguised as an AI citation. Unacceptable for a paid service.” — [Trustpilot](https://www.trustpilot.com/reviews/merlin-injected-ads), 1 star, 16 Oct 2026 **On Zemith:** Zemith is 100% ad-free and privacy-first across all tiers. We never insert sponsored links, affiliate recommendations, or third-party marketing into your chat streams, document citations, or generated files. Your queries remain untainted and private. ### 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](https://www.trustpilot.com/reviews/merlin-sidebar-freeze), 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](https://www.reddit.com/r/Merlin_AI/comments/sidebar_crashing_chrome/), Community review, 15 Oct 2026 **On Zemith:** Zemith 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](https://www.trustpilot.com/reviews/merlin-hidden-quotas), 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](https://www.trustpilot.com/reviews/merlin-billing-complaints), 1 star, 17 Oct 2026 **On Zemith:** Zemith 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. ## 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](https://www.g2.com/products/merlin-ai/reviews#browser-shortcut), 5 stars, 08 Oct 2026 **On Zemith too:** Zemith 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](https://www.trustpilot.com/reviews/merlin-multi-model-access), 5 stars, 10 Oct 2026 **On Zemith too:** Zemith 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. ## How Merlin AI compares with Zemith on cost, models, ads and workspace tools. Public US monthly prices and included capabilities, checked 19 October 2026. | 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 | ## 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](https://www.zemith.com/en/features/multi-model-ai-chat), 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. ## Try Zemith free — 100% ad-free multi-model AI with real documents and Creative Studio. [Start free on Zemith](https://www.zemith.com/app) ## Read these next to compare the other tools. - [Merlin AI pricing, query caps and real costs](https://www.zemith.com/en/learn/merlin-pricing) - [The best Merlin AI alternatives in 2026, ranked](https://www.zemith.com/en/learn/merlin-alternatives) - [Monica AI reviews: ratings and complaints](https://www.zemith.com/en/learn/monica-review) - [Zemith vs Poe: multi-model chat compared](https://www.zemith.com/en/products/zemith-vs-poe) - [Zemith vs ChatGPT, feature by feature](https://www.zemith.com/en/products/zemith-vs-chatgpt) - [Multi-model AI chat with mid-conversation switching](https://www.zemith.com/en/features/multi-model-ai-chat) - [Chat with PDF and documents in Study Library](https://www.zemith.com/en/features/chat-with-pdf) - [Visual AI workflow builder canvas](https://www.zemith.com/en/features/ai-workflow-builder)