Alternatives · 2026
Best Sigma AI Browser Alternatives in 2026
24 alternatives · 21 with a free plan · Updated
What are the best Sigma AI Browser alternatives?
The best Sigma AI Browser alternatives for AI Assistant in 2026 are You.com (AI search engine, free), PowerBrain AI Chat (AI chatbot, free) and Merlin AI (browser assistant and web app for AI research, free). 21 of the 24 listed alternatives have a free or freemium plan.
Looking for something other than Sigma AI Browser? Below are 24 alternatives in AI Assistant, AI Browsers and AI Chatbot, all closely matched, ranked by how much they overlap with Sigma AI Browser. Sigma AI Browser itself is free. Each entry shows what the tool does, what it shares with Sigma AI Browser, its key features and pricing.
What is Sigma AI Browser?
Chatting with an AI, summarizing a long page and drafting text without leaving your browser tab is the job Sigma AI Browser is built around. Sigma AI Browser is an AI browser that combines web browsing with built-in assistants for chat, search, summaries and content generation.
- Categories
- AI AssistantAI BrowsersAI ChatbotAI Image GeneratorAI Paragraph GeneratorAI Story GeneratorAI SummarizerAI Writing
- Pricing
- Free
Key features of Sigma AI Browser
- It offers features like Sigma Chat
- Sigma GPT
- Sigma Summarizer
Sigma AI Browser alternatives compared
| Tool | Pricing | Shared with Sigma AI Browser | Match |
|---|---|---|---|
| Sigma AI Browser | Free | — | Original |
| You.com | Free | AI Assistant, AI Chatbot, AI Image Generator, AI Summarizer, AI Writing | Strong match |
| PowerBrain AI Chat | Free | AI Assistant, AI Chatbot, AI Image Generator, AI Story Generator, AI Writing | Strong match |
| Merlin AI | Free | AI Assistant, AI Browsers, AI Chatbot, AI Image Generator, AI Summarizer | Strong match |
| SigmaOS | Freemium | AI Assistant, AI Browsers, AI Summarizer | Strong match |
| askone.ai | Freemium | AI Assistant, AI Browsers, AI Chatbot, AI Summarizer | Strong match |
Top 24 alternatives to Sigma AI Browser
- #1
AI search engine with a privacy focus, GPT-4 answers, AI writing, and AI image generation in one place.
In common with Sigma AI Browser: AI Assistant, AI Chatbot, AI Image Generator, AI Summarizer, AI Writing
- Privacy-focused search engine
- Comprehensive responses with GPT-4
- AI writing and image generation tools
Pricing: free
- #2
PowerBrain AI Chat is an AI chatbot that handles writing, proofreading, math, and conversational roleplay with selectable personalities.
In common with Sigma AI Browser: AI Assistant, AI Chatbot, AI Image Generator, AI Story Generator, AI Writing
Pricing: free
- #3
Browser assistant and web app for AI research, writing, and summarizing web pages, YouTube videos, and documents.
In common with Sigma AI Browser: AI Assistant, AI Browsers, AI Chatbot, AI Image Generator, AI Summarizer
- It helps users research
Pricing: free
- #4
SigmaOS is an AI browser with a built-in assistant, page summaries, and workspaces for organizing tabs and projects.
In common with Sigma AI Browser: AI Assistant, AI Browsers, AI Summarizer
Pricing: free plan, paid plans from $20
- #5
AskOne is an AI web browsing assistant that summarizes and translates pages and gives access to several large language models.
In common with Sigma AI Browser: AI Assistant, AI Browsers, AI Chatbot, AI Summarizer
- AI assistant for web browsing with LLM integration and productivity features
Pricing: free plan, paid plans from $10
- #6
AI browser extension that lets you use ChatGPT, Claude, Gemini and Meta AI on any website, with page summaries and PDF chat.
In common with Sigma AI Browser: AI Assistant, AI Browsers, AI Chatbot, AI Image Generator, AI Summarizer
Pricing: free
- #7
BLUF is an AI summarizer browser extension that condenses web pages, PDFs and YouTube videos and answers questions about them using ChatGPT.
In common with Sigma AI Browser: AI Assistant, AI Browsers, AI Chatbot, AI Summarizer
Pricing: free
- #8
Content Assistant is an AI writing assistant browser extension for drafting, editing and brainstorming text through chat prompts.
In common with Sigma AI Browser: AI Assistant, AI Browsers, AI Chatbot, AI Summarizer
- Enhances content interaction and personalized experiences
- Offers a wide range of features for content creation and editing
- Provides smart context retrieval for relevant information
Pricing: free
- #9
Overchat AI is an AI chatbot platform with several AI models, including ChatGPT and Claude, for writing, translation, and summaries.
In common with Sigma AI Browser: AI Assistant, AI Chatbot, AI Image Generator, AI Summarizer, AI Writing
- Access to multiple AI models in one platform
- Secure and encrypted interactions
- Versatile tool for various tasks
Pricing: free
- #10
Run ChatGPT directly in your browser without leaving the page you're on.
In common with Sigma AI Browser: AI Assistant, AI Browsers, AI Chatbot
- Access ChatGPT within your browser for AI-powered assistance
Pricing: free
- #11
DashAI is a Chrome extension AI chatbot that brings ChatGPT to any webpage, so you can ask questions without leaving the page.
In common with Sigma AI Browser: AI Assistant, AI Browsers, AI Chatbot, AI Summarizer
- Source Code Full Source Code
- Use however you like
- Future updates not available
Pricing: free
- #12
Chrome extension that gives you an AI assistant for chatting, web search, writing, translation, and PDF, image, and video processing.
In common with Sigma AI Browser: AI Assistant, AI Chatbot, AI Summarizer, AI Writing
- It also offers tools for image
Pricing: free
- #13
Bearly is an AI assistant for reading, writing, and summarizing, built for researchers and content creators who want to work faster.
In common with Sigma AI Browser: AI Assistant, AI Chatbot, AI Image Generator, AI Summarizer
- An AI tool for researchers and content creators to read
Pricing: free
- #14
All-in-one AI assistant with chat, writing, summaries, and AI image generation, available as a Chrome extension for everyday content work.
In common with Sigma AI Browser: AI Assistant, AI Chatbot, AI Image Generator, AI Summarizer, AI Writing
- Gemini 1.5
- It also provides AI art generation
Pricing: free
- #15
Donakosy is an AI content generator for writers, marketers and creators, producing text, images, voiceovers and code from prompts.
In common with Sigma AI Browser: AI Chatbot, AI Image Generator, AI Paragraph Generator, AI Story Generator, AI Summarizer, AI Writing
Pricing: paid, from $30
- #16
AI writing tool and multi-tool platform for images, code, voiceover, and chat, with paid plans starting at $9.99 a month.
In common with Sigma AI Browser: AI Assistant, AI Chatbot, AI Image Generator, AI Paragraph Generator, AI Summarizer, AI Writing
- AI tool website offering AI Writer
- Image Generator
Pricing: free plan, paid plans from $9.99
- #17
Shmooz AI is a WhatsApp and web AI chatbot for image generation, Google search, and file summarization.
In common with Sigma AI Browser: AI Assistant, AI Chatbot, AI Image Generator, AI Summarizer
- AI assistant on WhatsApp and web for image generation
Pricing: paid, from $3.99
- #18
AI browser extension that summarizes web pages, fills forms, and drafts email replies and social posts with one click.
In common with Sigma AI Browser: AI Assistant, AI Browsers, AI Chatbot, AI Summarizer
Pricing: free
- #19
An AI chatbot that bundles writing, translation, summaries and image generation in one place, and can be reached through WhatsApp.
In common with Sigma AI Browser: AI Assistant, AI Chatbot, AI Image Generator, AI Writing
- Offers a wide range of AI-powered tools in one platform
- Integrates with WhatsApp for convenient access
- Supports multiple languages (English
Pricing: free
- #20
AI Chat is an AI chatbot app that brings Gemini, ChatGPT, Claude, and Grok into one place for text, image, and video generation.
In common with Sigma AI Browser: AI Assistant, AI Chatbot, AI Image Generator, AI Summarizer
Pricing: free
- #21
AI browser extension that gives instant answers and summaries from YouTube videos, Gmail, PDFs, and web pages on desktop.
In common with Sigma AI Browser: AI Assistant, AI Browsers, AI Chatbot, AI Summarizer
- Provides instant answers across multiple platforms (YouTube
- Gmail
- PDFs
Pricing: free
- #22Z
AI chatbot and productivity platform giving access to several AI models, plus search, notes, document analysis and image generation.
In common with Sigma AI Browser: AI Assistant, AI Chatbot, AI Image Generator, AI Summarizer
- Access to multiple AI models in one platform
- Affordable pricing plans
- All-in-one solution for various AI tasks
Pricing: free
- #23
HyperWrite is an AI writing assistant for drafting content, summarizing research, and writing emails, with citations and real-time information on its Premium plan.
In common with Sigma AI Browser: AI Assistant, AI Chatbot, AI Paragraph Generator, AI Summarizer, AI Writing
- AI Messages per Month
- Citations + Real-Time Info
- Custom Personas
Pricing: paid, from $19.99
- #24
Privacy-focused AI chatbot and search engine that lets you use GPT-4, Claude Sonnet and Llama models in one place.
In common with Sigma AI Browser: AI Assistant, AI Chatbot, AI Image Generator, AI Summarizer, AI Writing
Pricing: free
How we picked these Sigma AI Browser alternatives
We rank tools by how closely they match Sigma AI Browser: tools that share more of its categories rank first, then tools whose main category, tags and description overlap with it, then community votes and views. Pricing type and features come from each product's SoftwareVital listing. Admins can pin or remove tools from this list.
Frequently asked questions
What are the best alternatives to Sigma AI Browser in 2026?
The closest alternatives to Sigma AI Browser are You.com, PowerBrain AI Chat, Merlin AI, SigmaOS and askone.ai. They are ranked by how many categories and tags they share with Sigma AI Browser and how similar their descriptions are, then by community votes and views on SoftwareVital.
What is the closest alternative to Sigma AI Browser?
You.com is the closest match because it shares AI Assistant, AI Chatbot and AI Image Generator with Sigma AI Browser. It is free.
Are there free alternatives to Sigma AI Browser?
Yes. 21 of the 24 alternatives have a free or freemium plan, including You.com (free), PowerBrain AI Chat (free), Merlin AI (free), SigmaOS (freemium) and askone.ai (freemium). Sigma AI Browser is free.
Which Sigma AI Browser alternatives are paid or enterprise tools?
Donakosy (paid), Shmooz AI (paid) and HyperWrite (paid) use paid or enterprise pricing, which usually means more support and admin options for teams.
How does Sigma AI Browser compare to You.com?
You.com overlaps with Sigma AI Browser in AI Assistant, AI Chatbot and AI Image Generator. Its listed features include privacy-focused search engine, comprehensive responses with GPT-4 and AI writing and image generation tools. Pricing: free. Open the side-by-side compare page for a full breakdown.
What category is Sigma AI Browser in?
Sigma AI Browser is listed under AI Assistant on SoftwareVital. Browse that category to see more tools in the same group.