Best free Merlin AI alternatives

✦ WhyA Merlin AI alternative — Free, native AI assistant built into Opera's mainstream and GX browsers, no separate app needed.

• Free, native AI assistant built into Opera's mainstream and GX browsers, no separate app needed
• Powered by a mix of OpenAI GPT and Google Gemini models under the hood
• 2025-2026 upgrade added faster models, higher usage limits and access to open-source local models

✦ WhyA Merlin AI alternative — ChatGPT/Claude/Gemini in a browser sidebar.

• ChatGPT/Claude/Gemini in a browser sidebar
• Summarize any page, PDF or YouTube video
• Translate, rewrite and explain selections
• Works across every website

✦ WhyA Merlin AI alternative — All-in-one AI copilot for the browser.

• All-in-one AI copilot for the browser
• Access to GPT, Claude & Gemini
• Writing, translation and search tools
• Desktop app and memo features

✦ WhyA Merlin AI alternative — One-click rewrite, reply and summarize.

• One-click rewrite, reply and summarize
• Chat with any page or image
• Instant translation and grammar fixes
• Prompt library built in

✦ WhyA Merlin AI alternative — AI web automation and monitoring.

• AI web automation and monitoring
• Track prices and page changes
• Scrape and summarize sites
• Custom command workflows

✦ WhyA Merlin AI alternative — Built directly into the Brave browser sidebar — no separate site, no account, no signup required for free tier.

• Built directly into the Brave browser sidebar — no separate site, no account, no signup required for free tier
• Access to Claude, Mixtral and Llama models without opening a separate chatbot site
• Conversations never stored on Brave's servers and not used for model training

✦ WhyA Merlin AI alternative — AI-native Chromium browser (from the makers of Arc) with AI chat built into every tab, not bolted on as a sidebar.

• AI-native Chromium browser (from the makers of Arc) with AI chat built into every tab, not bolted on as a sidebar
• Free for light AI use; a Pro tier lifts the usage caps
• Now backed by Atlassian after its 2026 acquisition of The Browser Company

✦ WhyA Merlin AI alternative — Free, powered by Llama 4.

• Free, powered by Llama 4
• Built into WhatsApp, Instagram & Messenger
• Image generation and editing in chat
• Real-time web answers

✦ WhyA Merlin AI alternative — Free access to Qwen3-series models.

• Free access to Qwen3-series models
• Strong multilingual and coding performance
• Open weights you can also run locally
• Vision, web search and artifacts