Find out why your company shows in ChatGPT but not Claude, and how Austin Heaton closes the Claude visibility gap for B2B brands.

If your company shows in ChatGPT searches but not Claude, you are looking at one of the most common, and most expensive, blind spots in AI search. Anthropic now commands 40% of enterprise LLM spend, ahead of OpenAI at 27% (Source: Menlo Ventures). The buyers researching inside Claude skew heavily toward the enterprise decision makers most B2B companies want.
Drawing on 12+ years in search and several years pioneering AEO, Austin Heaton breaks down why the two models disagree about your brand, how to diagnose the gap, and the exact steps that close it. This is a fixable problem, not a verdict on your content.
A company shows in ChatGPT but not Claude because the two models are built on different training corpora, different web search infrastructure, and different source selection behavior. ChatGPT and Claude are not two doors into the same database. They are separate systems that learned about the web in separate ways, and each one decides independently whether your brand is worth naming.
The main reasons the two models disagree:
This is why "ranking in AI search" is never one achievement; it is a separate scoreboard per model, a distinction Austin Heaton unpacks in his comparison of ChatGPT citations vs Claude citations. Treating the models as one channel is the root mistake behind most lopsided visibility.
ChatGPT and Claude choose sources differently because each model runs its own retrieval pipeline and applies its own trust signals before naming a brand. AI models select sources, they do not rank pages, and the selection criteria are not identical across labs.
The practical differences that matter for your visibility:
For example, Austin Heaton maps which publications and page types each model actually pulls from before he writes a single word for a client, using the source patterns documented in his guide to the best AI citation sources for B2B. Optimizing for "AI" in general is guesswork; optimizing per model is a strategy.
Claude rewards entity authority, consistent third-party coverage, and clearly structured answer-ready content, and companies that show in ChatGPT but not Claude are usually missing at least one of the three. Anthropic's models are notably conservative about naming brands they cannot corroborate across multiple independent sources.
The signals that move the needle for Claude visibility:
For example, Austin Heaton grew a client's AI search sessions by 575% by prioritizing exactly these signals, an approach he details in his playbook on building entity authority for AI search, supported by placements in external publications that drive AI search visibility. Claude does not need you to shout louder; it needs more independent voices agreeing on who you are.
Want to know exactly which signals your brand is missing in Claude today? Book a discovery call with Austin Heaton and find out.
You can diagnose why you show in ChatGPT but not Claude by testing real buyer prompts in both models, auditing crawler access, and checking how each model describes your brand when asked directly. Most teams skip the diagnosis and jump to publishing more content, which rarely fixes a structural gap.
The diagnostic sequence that isolates the cause:
For example, Austin Heaton starts engagements with a technical AEO audit that runs this exact sequence, then keeps score over time with LLM monitoring and reporting so fixes are measured rather than assumed. The diagnosis usually takes days, and it prevents months of misdirected content spend.
Closing the gap when you show in ChatGPT but not Claude means unblocking Anthropic's crawlers, earning corroborating mentions on the sources Claude already trusts, and restructuring revenue pages so they answer buyer questions directly. The order matters: access first, authority second, content third.
The core moves, in sequence:
For example, Austin Heaton drove 770% ChatGPT traffic growth in 90 days with this revenue-page-first sequence, and he applies the same playbook to Claude in his guide to getting clients from Claude searches, anchored by BOFU pages built to convert. The gap closes fastest when the fix targets the pages that actually make money.
Claude visibility matters for B2B pipeline because Claude's audience is disproportionately made up of enterprise teams, developers, and technical evaluators with real budgets. Anthropic serves more than 300,000 business customers (Source: Anthropic), and claude.ai drew an estimated 952.6 million visits in May 2026 (Source: Similarweb).
Why the channel punches above its raw traffic numbers:
For example, Austin Heaton tracked 101 AI-sourced conversions for a client in 60 days, results consistent with his analysis of why AI search converts higher than traditional search and his framework for growing Claude traffic as a B2B SaaS company. Ignoring Claude means conceding the most enterprise-heavy AI audience to whichever competitor it cites instead.
Austin Heaton is an independent SEO and AEO consultant who helps B2B, SaaS, FinTech, and Web3 companies earn citations across ChatGPT, Claude, Perplexity, Google Gemini, and Google AI Overviews. Clients work with him directly, one accountable owner, with execution typically starting within 7 days.
How his services map to the ChatGPT-but-not-Claude problem:
Ready to show up in Claude the way you already do in ChatGPT? Book a discovery call with Austin Heaton.
Showing in ChatGPT but not Claude is a diagnosable, fixable gap, not a mystery. The models use different training data, different indexes, and different trust signals, and with Anthropic at 40% of enterprise LLM spend (Source: Menlo Ventures), the Claude side of the scoreboard is too valuable to ignore. Austin Heaton's approach, access first, authority second, answer-first content third, closes it methodically.
Read Next:
Is your pipeline missing every buyer who researches in Claude? Book a discovery call with Austin Heaton and close the gap.
A company shows in ChatGPT but not Claude because the models rely on different training data, different search indexes, and different source-trust criteria. Austin Heaton treats each model as its own channel and optimizes for each one's specific selection behavior.
A company can check why it shows in ChatGPT but not Claude by testing real buyer prompts in both models, reviewing robots.txt and server logs for ClaudeBot, and asking each model to describe the brand. Austin Heaton runs this exact sequence in his technical AEO audits.
Yes, blocking ClaudeBot is one of the most common reasons a site shows in ChatGPT but not Claude, because Claude's retrieval cannot read pages its crawler cannot access. Austin Heaton finds legacy AI-crawler blocks from 2023-2024 on a large share of the sites he audits.
It is bad for a B2B company to show in ChatGPT but not Claude, because Claude's user base skews toward enterprise teams and technical evaluators with budget. Austin Heaton considers Claude citations some of the highest-intent referrals in AI search.
Yes, Austin Heaton fixes brands that show in ChatGPT but not Claude by restoring crawler access, building entity authority through independent mentions, and restructuring revenue pages into answer-first formats. His clients have seen results like 575% AI search session growth from this approach.