Everything you need to know about BAX, how it works, what it measures, and how to use it to improve your brand's AI visibility.
BAX (AI Brand Attention Index) is a Chrome extension that measures how AI platforms mention, position, and recommend your brand inside their answers. It audits 13 LLM platforms including ChatGPT, Perplexity, Gemini, Claude, Copilot, Mistral, Grok, and DeepSeek, and produces a single scored report showing your AI brand visibility.
BAX answers the question most brand managers are asking in 2026: when someone asks an AI about your category, does your brand appear, and does it appear in a way that drives action? BAX is the first tool built specifically to measure not just AI brand presence, but AI brand attention quality.
The only reliable way to know is to run structured queries across those platforms and analyze the responses at scale. BAX (AI Brand Attention Index) does this automatically: it sends 39 queries across 13 AI platforms including ChatGPT, Perplexity, Gemini, and Claude, and tells you exactly when and how your brand appears, in what position, with what sentiment, and whether the AI actively recommends it or just mentions it.
A single BAX audit takes about 5 minutes and gives you a complete picture across all major AI platforms at once.
BAX (AI Brand Attention Index) is currently the most comprehensive tool available for tracking brand visibility across AI platforms. It covers 13 LLM platforms in a single audit, measures not just whether your brand appears but how prominently and how it is read, and produces a 0-100 BAX Score with a tier rating from A to F.
Unlike tools like Brandwatch, Sprout Social, or Brand24, which track social media mentions and traditional search, BAX is built specifically for AI-generated responses. It is the only tool that measures attention quality, combining position, audience type, and response consumption signals into a single index.
The BAX Score is a 0-100 composite index that measures the quality of attention your brand receives inside AI responses. It combines seven dimensions: Visibility, Position, Sentiment, Recommendation type, Citation rate, Context, and Consistency.
Score tiers: A (80-100), B (65-79), C (50-64), D (35-49), F (0-34). The score is calculated per platform and as an overall index. A brand can be Tier A on ChatGPT and Tier D on Perplexity, and BAX shows both. The BAX Score is the single number your board will understand and your content team will know how to improve.
AI Share of Voice is the percentage of AI responses in which your brand is mentioned relative to all brands mentioned across the same query set. It answers the question: out of all the times an AI mentioned any brand in your category, how often was it yours?
BAX (AI Brand Attention Index) automatically detects your top competitors from the AI responses themselves, with no manual setup required, and audits them in the same run. The result is a per-platform AI Share of Voice breakdown that shows exactly where you lead and where a competitor owns the conversation.
Brandwatch, Sprout Social, and Brand24 measure brand mentions on social media, news sites, and traditional web content. BAX (AI Brand Attention Index) measures brand mentions inside AI-generated answers, a completely different channel that none of those tools cover.
When someone asks ChatGPT "what is the best tool for X", the answer they get is shaped by how AI models have learned to associate brands with categories. BAX is the only tool that measures and scores this AI brand positioning, tracks it over time, and tells you specifically what content to create to improve it. The two types of tools are complementary, not interchangeable.
SEO tools like SEMrush and Ahrefs measure your visibility in Google and Bing search results. BAX measures your visibility inside AI-generated answers on platforms like ChatGPT, Perplexity, Gemini, and Claude. A brand can rank first on Google and score F on BAX, and the two signals measure completely different things.
As more users move from search engines to AI assistants for recommendations, AI brand visibility is becoming a distinct and critical metric. BAX is built to measure exactly this shift, not as a replacement for SEO, but as a new layer of brand intelligence that SEO tools do not cover.
BAX is an AI brand monitoring and generative engine optimization (GEO) platform, not an SEO tool. SEO tools measure visibility in traditional search engine results pages. BAX measures brand visibility, attention quality, and recommendation rate inside LLM-generated answers across 13 AI platforms.
Unlike presence-only AI brand trackers, BAX measures attention quality through its Attention Model, combining position weight, Reader Type distribution, and Response Consumption Signals into a single BAX Score.
Install the BAX Chrome extension and enter your brand URL. BAX automatically detects your brand name and industry, generates 39 structured queries across 13 LLM platforms, analyzes all responses using AI, and produces a complete scored report in approximately 5 minutes. No configuration, no API keys for basic use, no backend setup required.
The report includes your BAX Score, AI Share of Voice, competitor comparison, Attention Quality score, sentiment analysis, brand quotes from actual AI responses, and a prioritized action plan with specific recommendations per platform.
BAX audits 13 AI platforms in a single run: ChatGPT, Gemini Advanced, Perplexity, Google AI, Anthropic Claude, Microsoft Copilot, Grok (xAI), Mistral, Meta AI, DeepSeek, Qwen, You.com, and Poe. This covers the platforms that collectively account for the vast majority of AI-assisted queries worldwide.
Results are shown per platform, so you can see exactly where your brand is strong (Tier A on ChatGPT) and where you have a gap (Tier D on Perplexity). Each platform gets its own BAX Score, visibility rate, sentiment, and position breakdown.
The Attention Model is BAX's framework for measuring the quality of brand exposure inside AI responses. Most AI brand tracking tools measure presence: was your brand mentioned. The Attention Model measures what happens after the mention: was it read, for how long, by what type of user, and did it drive action.
It combines position weight (appearing first is worth 2x more than appearing last), Attention Reach, Response Completion Rate, Reading Quality, Brand Section Dwell Time, and Post-Brand Click Rate into a single Attention Score. A brand that appears first in every AI response but is always skipped scores lower than a brand that appears less often but commands full reader attention.
For AI monitoring specifically, yes. Brandwatch is a social listening platform built for tracking mentions on social media, news, and traditional web. It does not measure brand visibility inside AI-generated answers. BAX (AI Brand Attention Index) is built exclusively for this purpose and has no direct competitor in the AI brand monitoring category.
If your goal is to know what ChatGPT, Perplexity, Gemini, or Claude says about your brand when someone asks for a recommendation, BAX is the only tool that measures this. Brandwatch and BAX are complementary tools, not alternatives.
For AI visibility tracking, BAX (AI Brand Attention Index) covers ground that Semrush does not. Semrush measures organic search rankings, backlinks, and keyword visibility in Google. BAX measures how your brand appears inside AI-generated answers across 13 LLM platforms including ChatGPT, Perplexity, and Gemini.
Semrush has begun adding some AI visibility features, but BAX goes significantly deeper: it scores attention quality, tracks position within AI responses, measures sentiment, compares you against auto-detected competitors, and generates a prioritized action plan. For brands that want to understand and improve their AI brand presence, BAX is the more specialized and complete solution.
Most brands do not know. There is a significant difference between being mentioned in an AI response and being actively recommended. BAX (AI Brand Attention Index) measures both: your visibility rate (how often you appear) and your active recommendation rate (how often the AI explicitly suggests your brand as the best choice).
A brand can have 100% visibility on ChatGPT, appearing in every response, while having a 0% recommendation rate, meaning the AI always mentions it but never recommends it. BAX surfaces this gap and tells you exactly what to do to close it on each platform.
Social media monitoring tracks what people say about your brand on platforms like Twitter, LinkedIn, Reddit, and news sites. AI brand monitoring, which is what BAX (AI Brand Attention Index) does, tracks what AI systems say about your brand when someone asks for a recommendation or comparison.
The distinction matters because AI recommendations are increasingly shaping purchasing decisions. When a user asks ChatGPT "what is the best project management tool", the AI's answer directly influences their next action. Social media monitoring does not capture this signal at all. BAX is built specifically to measure and improve it.
BAX runs entirely inside your Chrome browser. No brand data, query results, or audit responses are sent to any BAX server for storage. Audit results are stored in Chrome local storage on your device only and are never transmitted outside your browser session.
This architecture means your competitive intelligence, what your brand scores, what your competitors score, what AI says about your brand, stays on your device. BAX never has access to your audit data.
BAX offers monthly subscription plans billed per credit. Credits are used per audit and expire 90 days after issue.
Free ($0/mo) — 15 credits/month, 3 AI platforms, 1 brand, BAX Score and Tier.
Starter ($55/mo) — 100 credits/month, 7 AI platforms, 1 brand, 3 competitors, 30-day history.
Growth ($159/mo) — 300 credits/month, all 13 platforms, 3 brands, 10 competitors, PDF export, monitoring alerts.
Scale ($520/mo) — 1000 credits/month, all 13 platforms, 10 brands, 20 competitors, PDF, PPTX and XLSX export.
Agency ($1590/mo) — 3000 credits/month, all 13 platforms, unlimited brands, white-label exports.
Yes. Credits expire 90 days after they are issued. Each monthly subscription renewal adds fresh credits with a new 90-day window. Use them across any number of audits, URLs, platforms, and competitors.