MentionBird vs Side Space 2.0: Features, Pricing & Which Is Better (2026)
A side-by-side comparison of MentionBird and Side Space 2.0 — features, pricing, and ideal use cases — to help you decide which AI tool fits your workflow.
MentionBird
MentionBird
AI search visibility platform that shows which sources ChatGPT, Gemini, Perplexity and Claude cite for your prompts and how to get your brand named.
Key features
- AI Prompt Tracking: Monitor the exact prompts buyers ask AI, with daily runs across supported AI platforms.
- AI Citation Tracking: See which pages, reviews and YouTube videos AI cites for each prompt and whether your brand appears in them.
- AI Ranking Advice: Get a per-prompt plan of recommended actions rated by effort and impact to earn mentions.
- Competitor Tracking: Compare share of AI recommendations against each competitor, week over week.
- Multi-Platform Coverage: Covers ChatGPT, Gemini, Perplexity and Claude, with Grok, AI Overviews, Copilot and DeepSeek on the Custom plan.
- MCP and API Access: Connect Claude or ChatGPT directly to your visibility data and ask questions about it.
- Free AI Tools: No-login tools such as an AI Crawler Accessibility Checker and an AI Visibility Report.
Best for
- Generative Engine Optimization: Finding which sources AI relies on for category prompts and earning placements in them.
- Competitive Benchmarking: Seeing which rivals AI recommends instead of your brand and for which prompts.
- Agency Client Reporting: Reporting client AI visibility and the next fixes to make.
- Content Planning: Using ranking advice to decide which guides and product-page details to publish.
- Launch Monitoring: Tracking whether a new product starts getting named in AI answers over time.
Side Space 2.0
Side Space
An AI-powered vertical tabs manager in the browser side panel that helps research, summarize, organize, and chat with your tabs.
Key features
- Vertical Tabs Side Panel: Provides a persistent vertical tab manager inside the browser side panel for quick access and streamlined navigation between open pages.
- Tab Summarization: Generates concise summaries of open webpages or groups of tabs to surface key points and save reading time during research.
- Chat-with-Tabs Interface: Lets users query and converse with their set of open tabs to extract information, compare content, and get synthesized answers from multiple sources.
- Organization & Grouping: Tools to organize, sort, and group tabs for projects or topics, reducing clutter and enabling focused workflows.
- Research Workspace: Facilitates multi-tab research by consolidating content, highlights, and summaries in one side-panel workspace for easier analysis.
- Session Management: Keeps browsing sessions organized so users can save, restore, and continue research across visits (inferred from organization and workspace claims).
- Vertical tabs manager integrated into a browser side panel
- AI-driven summarization of open pages/tabs
- Chat interface to interact with and query tabs
- Tools to organize and group tabs for research workflows
- Context-aware assistance to help browse smarter and faster
Best for
- Academic Research: Collecting multiple articles in the side panel, producing unified summaries, and extracting key findings across sources for literature reviews.
- Competitive/Product Research: Opening and comparing product pages across tabs, then using the chat interface to synthesize pros, cons, and price differences.
- Project Tab Organization: Grouping and organizing dozens of tabs by project or task to reduce clutter and quickly resume work without losing context.
- Pre-Meeting Preparation: Summarizing several open web pages into short briefs to prepare talking points or summaries ahead of meetings.
- Quick Fact-Finding: Asking the chat interface to pull and consolidate facts or quotes spread across multiple tabs for fast answers.
- Conducting web research across many open tabs and getting concise summaries
- Organizing and grouping tabs for focused workflows or projects
- Quickly extracting key points from articles without switching tabs
- Using a chat interface to ask questions about content present in open tabs
- Improving browsing productivity by reducing tab clutter and surface relevant information