How are AI search tools like ChatGPT reshaping the B2B buyer journey?

This article was updated on 18th March 2026

When this post was written in August 2025, the evidence on AI traffic quality was limited to early studies. There are now multiple primary datasets across different industries and time periods. The direction is consistent: AI referral traffic converts at higher rates than traditional organic for B2B and high-consideration purchases. The effect is weaker or neutral for transactional ecommerce.

The most robust study: Seer Interactive (B2B software, October 2024 to April 2025)

Seer Interactive analysed GA4 data from a single B2B software client across six AI platforms, tracking 1,370 AI-driven conversions against almost 14 million organic sessions. ChatGPT converted at 15.9%, Perplexity at 10.5%, Claude at 5%, Gemini at 3%, versus Google organic at 1.76%. ChatGPT users viewed 2.3 pages per session on average — nearly double the organic search average of 1.2 — suggesting they arrived mid-funnel, having already researched and compared options inside the AI tool.

Ahrefs: first-party data showing 23x conversion rate advantage

Ahrefs published its own internal data in June 2025: AI search traffic accounted for 0.5% of total visits but drove 12.1% of all new signups — a 23x higher conversion rate than organic search. These users also viewed 50% more pages per visit and had lower bounce rates. This is first-party data from Ahrefs on their own site, using Ahrefs Web Analytics.

Semrush: broader cross-industry finding

Semrush's July 2025 research found LLM visitors convert 4.4x better than organic search visitors on average. Their explanation: by the time someone clicks through from a ChatGPT response, the AI has already summarised their options and effectively pre-qualified the visitor. They arrive ready to act, not still browsing.

Microsoft Advertising: Copilot-driven journeys and lower-funnel conversion

Microsoft Advertising's April 2025 analysis found that Copilot-powered purchase journeys are 33% shorter and 76% more likely to lead to lower-funnel conversions than journeys that do not involve Copilot. This is first-party data from Microsoft's own advertising platform.

Important nuance: the effect varies by sector

Not all AI traffic converts equally. Seer Interactive notes their B2B software finding may not generalise to transactional ecommerce where purchase intent is different. Semrush's cross-industry figure of 4.4x is an average across research-heavy and transactional categories. The conversion advantage is most consistent for B2B, SaaS, professional services, and other high-consideration purchases — the exact markets this blog addresses.

Update: Google have shared their own thoughts on quality of traffic coming from AI - read more here.

The increase in use of AI powered tools like ChatGPT, Perplexity, Claude, and Google’s AI Overviews and AI Mode is transforming how users discover content. While traditional SEO has long dominated  organic user acquisition strategies, the emergence of AI-driven answers is shifting the focus and putting more attention on quality over volume.

In a world where attention is scarce and zero-click search is on the rise, the big question is no longer "how much traffic?" but "what kind of traffic?"

Is AI growing it's share of search volume over Google?

We don't believe any brands should be choosing between AI search and Google as if it's a case of having to pick one over the other. SEO is not dead, and Google is not going anywhere. But it's hard not acknowledge the shifting search behaviour, and some of the important differences between SEO and GEO.

Research from clickstream data provider Datos recently highlighted that in the United States, the share of users that went to chatbots rather than traditional search engines reached 5.6% in June, up from 2.48% in June 2024 and 1.3% in January 2024. While Google still commands the lion's share of search activity, the growth of AI tools suggests a new class of traffic is emerging.

Are AI referral traffic conversion rates higher than Google?

Recent studies are starting to uncover a surprising pattern: AI search traffic, while lower in volume, may be significantly higher in quality.

• Ahrefs (June 2025) reported that AI search accounted for just 0.5% of their total visits, but drove 12.1% of all new signups. That’s a 23x higher conversion rate than organic search.
• These users also viewed 50% more pages per visit and had lower bounce rates, suggesting higher engagement.

In other words, AI referrals might be smaller in number, but they punch well above their weight.

Platform specific performance: ChatGPT and Perplexity

The picture becomes even clearer when looking at individual AI platforms.

A Seer Interactive case study found:

• ChatGPT accounted for 61% of AI-driven visits, Perplexity ~24%, Gemini ~15%
• AI visitors viewed an average of 2.3 pages/session compared to 1.2 for Google organic
• Engagement rates for AI referrals were on par with organic (~60%) but delivered 100% more attributed conversions year-on-year (Seer Interactive)

These tools appear to act as mid-to-late funnel accelerators: users arrive more qualified, more curious, and more ready to act.

Does AI SEO traffic convert higher in B2B SaaS?

We love this data study from Goodie showing a 56.3% higher close rate from leads that originated in AI search agents compared to Google or Bing.

Out of all the platforms analysed, ChatGPT was the most efficient B2B traffic source that they identified with nearly double the lead:close rate of traditional search engines. 

For B2B marketers, this means vertical context matters. But even modest AI visibility can yield strong ROI if aligned to the right funnel stage. Whilst Google was still leading top of funnel referral traffic, ChatGPT was clearing referring better quality, ready to convert traffic.

Why do AI referrals convert better?

Several factors may explain the high performance of AI referred traffic over Google referred traffic:

• LLM tools act as buyer enablement engines: they answer specific questions aligned with real problems
• Users arrive further down the funnel: often in exploration, comparison, or evaluation stages
• Less noise, more relevance: AI links are often more direct and intentional than search listings

The result? Higher commercial intent and better conversion efficiency.

Final thought: Smaller volumes, higher stakes

In the age of AI native B2B buyer journeys, it's not just about reaching more people - it's about reaching the right ones. B2B SEO has always been about quality over traffic, but at FirstMotion we think that's more important than ever now.

AI tools may deliver fewer users, but if those users convert at 10x or 20x the rate, the economics shift dramatically. As visibility in these tools becomes more competitive, now is the time to build an AI first visibility strategy that drives revenue, not just rankings.

The world of B2B SaaS is built on discovery. Digital transformation has accelerated changes in B2B SaaS discovery, reshaping how buyers and businesses interact with solutions. For years, discovery has meant mastering search engines through traditional SEO: keywords, backlinks, and ranking mechanics. Search engine optimization (SEO) is the process of improving the quality and quantity of website traffic from search engines, helping buyers discover relevant content. But a major shift is underway. Buyers are no longer typing a few words into Google and scrolling through ten blue links. They are asking questions in natural language, expecting instant, context-aware answers, and AI search has created new ways for buyers to discover solutions. This is the AI search revolution, and it is transforming how B2B SaaS companies and businesses are found, evaluated, and chosen. In this article, we explore the behaviour changes driving this shift, how AI search differs from traditional search, what it means across platforms, and the strategic implications for SaaS marketing leaders, including the impact of AI search on B2B SaaS businesses.

The Search Behaviour Shift

The B2B buyer journey has always been research-intensive. A typical SaaS purchase involves multiple stakeholders, months of consideration, and dozens of touchpoints. Traditionally, search engines like Google acted as the gateway to information. Buyers typed in keywords such as “best CRM for mid-sized businesses” or “enterprise project management software” and sifted through results, blogs, and review sites. Today, that same buyer is just as likely to turn to AI search tools. Customers now expect more conversational and context-aware answers from these tools. Instead of typing “best CRM”, they might ask:

• “Which CRM platforms integrate natively with HubSpot and support AI automation?”
• “What are the key differences between Salesforce, Pipedrive and Zoho for a 100-person B2B sales team?”

The difference is subtle but profound. Search is no longer about keywords, it’s about conversations. AI-powered engines automatically interpret a wide range of search queries, compare options, and summarise insights instantly. AI-powered search engines use Natural Language Processing (NLP) and Machine Learning (ML) to understand user intent and context. In many cases, buyers receive answers directly in the search results without visiting a given page. This means buyers are reaching informed conclusions faster, with fewer clicks, and often without ever landing on a vendor’s website. For SaaS companies, this shift means visibility and influence are no longer guaranteed by simply ranking high on Google.

Traditional Search Engine Optimization vs AI Search

Indexing and file management practices have evolved in AI search, with less emphasis on manual control of files and more on structured data and semantic understanding.

Traditional SEO rewarded content volume, technical optimisation, and backlinks. It relied heavily on PageRank, indexing, and managing files and URLs to ensure visibility in search results. For example, managing multiple URLs and same content was crucial, specifically through canonical tags and redirects to consolidate link equity and avoid duplicate content issues. Writing content and creating content remain important, but the focus has shifted toward authority and clarity. The choice of domain and descriptive URLs can still influence search visibility, especially when targeting specific markets or improving user experience. Creating compelling and useful content influences a website’s presence in search results more than any other SEO suggestions. It is less about chasing every keyword and more about ensuring your solution is consistently represented in AI-generated answers.

Platform Differences

AI search is not one monolithic channel. It manifests differently across Google’s SGE, independent AI tools, review platforms, and social networks. SaaS marketers must consider visibility across all these points of influence. Providing access to valuable resources across platforms is essential for enabling member participation and keeping users informed.

Connecting different types of content, including forum posts and other user-generated resources, can enhance visibility in AI search by improving discoverability and supporting ranking considerations.

Strategic Implications for B2B SaaS

The shift to AI search demands a broader strategy. SaaS companies must optimise for authority, structure, and presence across multiple platforms, while measuring success in new ways. It is also important to promote your company and services both online and offline to maximize reach and brand impact.

From Search to Conversations

The AI search revolution is not about the death of SEO, but its evolution. Traditional SEO principles — clarity, relevance, authority — still matter. But they must be reframed through the lens of conversations, not keywords. For B2B SaaS companies, this is both a challenge and an opportunity. The challenge lies in adapting fast: rethinking content strategies, investing in structured knowledge, and diversifying presence beyond Google.

With the introduction of AI mode in search engines, which leverages the web using a query fan-out technique to break down search queries into sub-topics, answers are generated with greater relevance and depth. AI-generated content is created by synthesizing information from across the web, drawing on a vast array of sources to provide comprehensive responses. Large Language Models enable AI-powered search to generate original content or summaries by synthesizing information from multiple sources.

The opportunity is clear: those who embrace AI search early will capture disproportionate visibility, shaping buyer perceptions before competitors catch up. The companies that thrive will be those that understand a simple truth: in B2B SaaS, discovery is no longer about being the loudest voice on Google. It’s about being the trusted answer wherever buyers ask their questions.

Measuring Success in Modern Search

In the rapidly changing world of search engine optimization, understanding how to measure success is more important than ever. As search engines evolve and user expectations shift, relying solely on traditional metrics like keyword rankings or organic traffic no longer provides a complete picture. Modern SEO requires a broader approach—one that explores how your content is discovered, cited, and engaged with across a variety of search platforms.

To effectively gauge the impact of your SEO efforts, focus on insights that reflect the true nature of today’s search environment. This includes tracking how often your brand or website is referenced in AI-generated search results, monitoring user engagement with your content, and analyzing the visibility of your pages across multiple search engines and conversational platforms. Additionally, consider metrics such as share of voice in industry-specific queries, the quality and relevance of inbound links, and the frequency with which your resources are included in curated lists or directories.

By exploring these modern KPIs, businesses can gain a deeper understanding of their search performance and make data-driven decisions to optimize their strategies. The key is to move beyond surface-level numbers and focus on the insights that truly matter—how users are finding, interacting with, and trusting your content in an increasingly complex digital landscape.

FAQs

1. Will SEO still matter in the age of AI search?
Yes. SEO remains critical, but its focus is evolving. Technical SEO, site performance, and structured content all remain relevant. However, content must be designed to be cited by AI systems, not just ranked by Google.

2. How can B2B SaaS companies measure success in AI search?
Beyond traditional rankings, SaaS marketers should track how often their brand is mentioned in AI-generated responses, presence on review platforms, and share of voice in conversational search engines like ChatGPT or Perplexity.

3. What type of content performs best in AI search?
AI engines prefer clear, structured, and authoritative content. This includes product comparison tables, API documentation, in-depth guides, customer case studies, and thought leadership that directly answers buyer questions.

This article was updated on 18th March 2026

Updated March 2026 - What actually happened after GPT-5 launched

This post was written on August 8, 2025 - the day GPT-5 launched - and contained our initial analysis. Now that GPT-5 has been live for several months, we can compare those predictions against what has actually happened.

What OpenAI confirmed at launch

GPT-5 launched on August 7, 2025. OpenAI stated that responses with web search enabled are approximately 45% less likely to contain a factual error than GPT-4o, and around 80% less likely when using extended thinking mode. OpenAI positioned it as the first model to meaningfully unify reasoning and real-time retrieval in a single system.

What the traffic data now shows

The zero-click risk predicted in the original post is now measurable. Seer Interactive's November 2025 study of 3,119 informational queries across 42 organisations found organic CTR for queries with AI Overviews dropped 61% (from 1.76% to 0.61%) between June 2024 and September 2025. Even queries without AI Overviews saw a 41% CTR decline - suggesting users are going to ChatGPT and other AI tools before they even reach Google.

What this means for the original analysis

The predictions in the post below have largely held. The citation upside is real - Seer found that brands cited in AI Overviews earn 35% higher organic CTR and 91% higher paid CTR than uncited brands. SE Ranking's December 2025 study of 129,000 domains confirmed that referring domains are the single strongest predictor of ChatGPT citation.

When GPT-4 launched in March 2023, it was the first time many marketers realised that search might not be confined to Google forever. GPT-5, released in August 2025, makes that shift feel permanent.

It is not just a better chatbot – it is a new search layer, with its own retrieval system, ranking logic, and bias towards certain content types.

How does GPT-5 change SEO and visibility?

OpenAI has improved reasoning, accuracy, and long-context handling in GPT-5, but the more important change for SEO is behind the scenes.

The search experience is faster, citations are cleaner, and sources feel more intentionally selected. It is also more agent like - able to follow instructions across multiple steps - but the most impactful change is how it retrieves and ranks results.

How GPT-5 search actually works

If you assume GPT-5 is just passing your query to Google or Bing, things are in reality a bit more complex than that.

• • GPT-5 almost certainly uses a proprietary meta layer rather than raw SERP feeds go get its results.

• • Results seem to sometimes overlap more with Bing results than Google, but whilst also pulling from lots of other sources, re-ranking, changing the order of things etc. So it does not always mirror the search engine results page.

• • It appears not to be able to access live Google search results page, but it does seem to be able to access a Bing SERP if provided an exact URL.

Have a read of this great round up by Josh from Profound for more technical insights.

Why GPT-5 matters for SEO

With GPT-5 it seems more apparent than ever that there is not always a link between ranking highly on Google and being visible in AI results.

Optimisation for SEO/AEO/GEO now means thinking about AI search as a standalone channel – one where:

• • Authority is measured across multiple engines and ecosystems.

• • Content must be easily parsed, summarised, and cited by an LLM.

• • Being present on other trusted domains can matter as much as your own site.

• • Structured, context-rich content outperforms thin keyword-driven pages.

The risk of AI search for marketers

Zero click behaviour is likely to intensify. GPT-5’s improved answers mean users may never need to visit the source. That puts more pressure on measuring exposure in generative answers, not just traffic/clicks.

It also means you cannot assume that you will be highly visible in AI tools like ChatGPT even if your traditional SEO rankings stay strong – because the ranking logic is not exactly the same.

GPT-5 is not simply a better ChatGPT - it is a more sophisticated search engine in its own right, with a proprietary retrieval and ranking layer. Whilst it's still important to focus on SEO, the mindset shift, approach to measurement and more granular Answer Engine Optimisation/Generative Engine Optimisation approaches are key.