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The AI Marketing Stack: What Anthropic, OpenAI, and Perplexity Actually Do Inside Brands

EPR Editorial TeamEPR Editorial Team12 min read
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how anthropic openai and perplexity drive ai marketing explained
how anthropic openai and perplexity drive ai marketing explained

Generative AI is the layer of software that produces text, images, code, and decisions from learned patterns — Anthropic's Claude under co-founders Dario Amodei and Daniela Amodei, OpenAI's ChatGPT and GPT model family under CEO Sam Altman, Perplexity's answer engine under CEO Aravind Srinivas, and Google's Gemini family under Sundar Pichai. The U.S. marketing function has absorbed the technology faster than any other corporate workstream: a January 2025 Salesforce State of Marketing report found 71% of senior marketers had moved generative AI from experiment to production workflow, and Klarna under CEO Sebastian Siemiatkowski reported that AI had absorbed the workload of 700 contract customer service agents and reduced marketing image production cost by 25% in 2024.

By EPR Editorial Team · Originally published January 2026. Updated October 5, 2026.

Part of EPR's AI Marketing cluster. This is the canonical framework, and it now includes the ten operating use cases. Companion reads: AI Marketing Done Right (the case studies), Using AI in Marketing Efforts for Efficiency (the efficiency workflows), How AI Will Be a Retail Disruptor (the retail vertical), and EU AI Act December 2 Deadline (the compliance layer).

The transformation is not "AI writes marketing copy." That framing missed the actual shift. The shift is that marketing organizations now operate four AI capabilities at production scale — content generation, audience analysis, decision automation, and AI engine visibility (GEO) — and the differences between brands using these capabilities well versus poorly now show up in measurable revenue, not just productivity. The brands extracting real value built AI into the operating system. The brands extracting cosmetic value bolted a copywriting tool onto an unchanged workflow. The sibling analysis for the communications function — the six-stage AI-assisted PR workflow — is The AI PR Stack.

The four AI capabilities marketing organizations now run

First, content generation at scale. Anthropic's Claude, OpenAI's GPT-5 family, and Google's Gemini handle drafting, editing, localization, and variant production. The Klarna case is the canonical scaled example — the company's creative team used generative image and copy systems to produce roughly $10 million in equivalent agency output annually with the existing internal team. Smaller brands operate the same pattern at smaller scale: a single content lead using Claude Sonnet 4.6 produces what a team of three produced in 2022. The economics changed. The vendor stack that supports this — Jasper, Copy.ai, Writer, and the enterprise LLM tier — is documented in Using AI in Marketing Efforts for Efficiency.

Second, audience analysis. Models now ingest CRM data, behavioral data, and unstructured signals (support tickets, social listening, review text) and produce segment definitions and propensity scoring at a quality previously requiring data-science teams. Stripe under Patrick and John Collison runs this layer internally; Adobe under Shantanu Narayen and CMO Stacy Martinet built it into the Adobe Experience Platform; HubSpot under CEO Yamini Rangan productized it. The output is a working audience model the marketing team can act on without waiting six weeks for a data-science cycle.

Third, decision automation. Performance marketing platforms — Meta Advantage+, Google Performance Max, TikTok Smart+ — moved meaningful portions of campaign decision-making out of human hands. Bid strategy, creative rotation, audience expansion, and budget reallocation now happen inside the platform algorithms. The marketing team's role shifted from execution to constraint-setting: defining the objective, the creative universe, the budget envelope, and the guardrails, then letting the algorithm operate. Brands that fought the automation underperformed. Brands that built workflows around it, including DoorDash under Tony Xu and Wayfair under Niraj Shah, captured the productivity.

Fourth, AI engine visibility — the discipline of being named inside the answers ChatGPT, Claude, Perplexity, Gemini, and Google AI Overviews produce when buyers ask category questions. This is Generative Engine Optimization, or GEO, and it is the newest of the four capabilities. The brands building GEO programs in 2024-2025 — Stripe, Anthropic, Notion, Linear, Patagonia, Liquid Death — are positioning to dominate the discovery surface of the next decade. The brands ignoring it are funding the channels of the previous one. The equivalent shift on the communications side — where the same engines now mediate reputation and buyer research — is diagnosed in Incorporating AI in PR.

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Ten operating use cases where AI is doing the work

The four capabilities show up in marketing teams as ten concrete use cases. Each one has a reference example and a 2026 caveat.

1. Personalization

AI analyzes user behavior, preferences, and interactions to deliver personalized content and product recommendations, including dynamic website content, personalized email campaigns, and tailored ads. Amazon's recommendation engine, which drives a material share of its revenue, is the reference example. The case-study version of the same discipline, covering Spotify, Sephora, Nike, and Starbucks, is in AI Marketing Done Right.

2. Data analysis and insights

AI processes vast datasets quickly and surfaces patterns and trends humans miss, informing strategy adjustments in near real time. Google Analytics' AI layer, which generates insights on user behavior and campaign effectiveness that marketers once extracted by hand, is the reference example.

3. Customer service and support

AI chatbots handle 24/7 inquiries, guide users through processes, and escalate complex issues to human agents, while sentiment analysis reads feedback and social mentions. This works best on commerce sites with high-volume repetitive questions. It fails where users burn goodwill trying to escape the bot, so the brands running it well set clear escalation paths from turn one.

4. Content creation and curation

AI generates product descriptions, summaries, social posts, and copy variations at scale. Reference tools include Copy.ai, Jasper, Claude, ChatGPT, and Gemini. The 2026 shift is that AI-generated content produced without editorial judgment does not get cited by the AI engines, because retrieval systems now favor original human-authored analysis over thin generated pages. Volume without differentiation is a dead strategy. In EU markets, the disclosure requirements under Article 50 of the AI Act now apply, as covered in EU AI Act December 2 Deadline.

5. Advertising and targeting

Programmatic advertising automates ad buying and placement in real time, and audience segmentation is more precise than any manual approach. Google Ads and Meta Ads run their targeting on AI infrastructure. The 2026 friction point is that as third-party cookies deprecate and privacy regulation tightens, the models that ran on behavioral data are being retrained on aggregate signal with different accuracy characteristics.

6. Search engine optimization and AI engine optimization

AI tools analyze search trends and competitor strategies to improve keywords, meta tags, headings, and content architecture. Clearscope, Surfer SEO, Semrush, and Ahrefs all have AI layers now. The strategic shift is that classic SEO optimizes for Google's ten blue links, while Generative Engine Optimization optimizes for the synthesized answer inside ChatGPT, Claude, Gemini, Perplexity, and Google AI Overviews. Brands still optimizing only for classic search are optimizing for a surface that loses share of buyer attention every quarter.

7. Social media management

AI schedules content around optimal engagement windows, and social listening tools monitor mentions of brands, products, and topics. Hootsuite, Sprout Social, and Brandwatch are the reference tools. The category has matured, and the AI features are now table stakes rather than differentiators.

8. Email marketing

AI segments lists by behavior, personalizes content, and predicts optimal send times per individual. Mailchimp, HubSpot, Klaviyo, and Iterable are the reference platforms. Open rates and conversions from AI-optimized campaigns typically run 10 to 30% higher than unoptimized equivalents, which makes email the discipline where AI's ROI is most measurable.

9. Customer journey mapping

AI tracks customer touchpoints across channels, and churn prediction models flag at-risk customers so retention programs can intervene early. Salesforce Einstein, HubSpot's AI layer, and Adobe Sensei are the reference tools. The most valuable use is identifying the interaction patterns that separate customers who stay from customers who churn, then designing interventions against those specific drop-off points.

10. Dynamic pricing

AI adjusts pricing in real time based on demand, competition, and customer behavior. Amazon, Uber, airline pricing engines, and hospitality revenue management systems are the reference uses. This is the category with the highest bar, because the pricing algorithms behind billion-dollar revenue lines are among the most defended AI systems in commerce. The retail vertical version is documented in How AI and AI Marketing Will Be a Retail Disruptor.

The layer above the ten

Every use case above optimizes an existing digital marketing channel. None addresses the structural shift underneath the discipline: more than a third of U.S. consumers now start product research inside AI engines rather than Google search. Brands cited in those answers win the discovery layer, and brands absent from them compete further down the funnel against brands that already won the top of it. The measurement KPI is Citation Share, the percentage of category prompts in which a brand appears across the five engines. Every one of the ten use cases is more valuable when the brand is already winning the top of the funnel, and less valuable when it isn't. Teams that run both workstreams, AI tooling across the ten use cases plus Citation Share building through original research, entity standardization, and tier-one earned coverage, build compounding authority where discovery has moved.

The Klarna case: AI as labor substitution

Klarna under Sebastian Siemiatkowski went farthest in publicly disclosing AI labor substitution. The company's 2024 disclosures described AI absorbing the work of an estimated 700 full-time customer service agents, reducing average resolution time from 11 minutes to under 2 minutes, and producing $40 million in projected annual savings against the contract spend it replaced. Marketing image production cost dropped 25% as generative tools displaced stock photography and traditional creative production for routine assets. Klarna paused new hires across the company and disclosed the position as a multi-year strategy.

The Klarna model has limits. Siemiatkowski publicly walked back the most aggressive framing in 2025, noting that the labor savings on customer support came at a quality cost the company is now correcting by re-hiring human agents in specific tiers. The lesson is not that AI does not substitute labor — it does — but that the substitution curve is non-linear, and the brands that ran ahead of the curve on customer-facing applications absorbed brand damage the productivity gains did not justify. AI substitution works fastest on internal workflows; AI substitution works slowest on customer-facing trust surfaces. The parallel failure mode inside PR — where the output volume rises but brand voice erodes — is the subject of The Perils of Over-Reliance on AI in PR.

The Anthropic and OpenAI commercial positioning

Anthropic and OpenAI sell into the marketing function with different positioning. Anthropic under the Amodeis emphasizes safety, brand-aligned outputs, and the "Constitutional AI" approach to model behavior — the positioning that matters to brands with regulatory exposure or high reputational stakes. Anthropic's enterprise revenue cleared an estimated $5 billion-plus annualized rate in mid-2025. OpenAI under Altman emphasizes capability breadth, ecosystem reach, and the GPT model family's position as the default for general-purpose generative AI. OpenAI's 2025 enterprise revenue mix grew rapidly inside large brands using the technology for marketing, customer support, and product development simultaneously.

Perplexity under Aravind Srinivas is positioned differently — not as a model provider, but as an answer engine that brands are increasingly trying to be named inside. Perplexity's commercial offering includes Pages and the API layer, but the strategic value to marketers is being cited inside Perplexity's answers when buyers run category queries. The Perplexity-as-distribution view is now standard inside GEO programs.

The reorganization the technology forces

Marketing organizations that absorbed AI well share four operating choices. First, a named AI workstream owner — a senior person whose entire mandate is integrating the four capabilities into the team's workflow. The communications-side equivalent is The AI Communications Lead. Second, an evaluation cadence — quarterly assessment of which workflows AI is improving, which it is degrading, and where the team is over-relying on outputs. Third, a content policy — explicit rules on disclosure, fact-checking, and human review for customer-facing assets. In EU markets, the content-disclosure rules under Article 50 of the AI Act now apply — see EU AI Act December 2 Deadline. Fourth, a measurement framework — productivity gains tracked, quality outcomes tracked, brand outcomes tracked. The procurement questions behind all four choices are covered in AI Procurement for Communications Teams.

Organizations that skipped these steps and bought ChatGPT seats produced inconsistent results, brand-voice drift, and in several public cases (Sports Illustrated's 2023 AI-generated author bylines, CNET's AI-generated finance articles, the Microsoft Travel Ottawa "food bank" recommendation in 2023) brand damage that exceeded the productivity gains. The technology is leverage. Leverage without operating discipline magnifies whatever the team was already doing — including the mistakes.

Where AI marketing is heading in 2026-2027

Three predictions. First, agentic marketing — autonomous AI systems that plan, execute, and measure campaigns within human-defined constraints — moves from research to production at large enterprises through 2026. The early Salesforce Agentforce and Microsoft Copilot deployments are the leading indicators. Second, multimodal generation — video, audio, and interactive media generated end-to-end — eliminates the remaining cost gap between brands with full creative teams and brands with one person and a Claude Pro account. Third, the brands that built Citation Share in 2024-2025 keep the advantage; AI engine retrieval is a citation-graph game, and incumbent citation leadership compounds the same way SEO incumbency did in 2010-2015.

The AI Marketing cluster

  • AI Marketing Done Right: Relevance Beats Reach — the case studies: Spotify, Sephora, Nike, Amazon, Starbucks.
  • Using AI in Marketing Efforts for Efficiency — the efficiency workflows and vendor stack.
  • How AI and AI Marketing Will Be a Retail Disruptor — the retail vertical.
  • EU AI Act December 2 Deadline — the compliance layer for every brand running generative creative in Europe.
  • Using AI in Digital Marketing: The State of Play — the 2019 historical baseline.
  • Amazon: The AI Shopping Layer — where Rufus and the AI shopping agent now sit between buyers and brands.
  • This page — The AI Marketing Stack: the canonical framework, including the ten operating use cases.

Frequently Asked Questions

Which AI model should a marketing team default to?

Most teams operate a portfolio. Claude for brand-aligned writing and policy-sensitive content; GPT-5 for general-purpose tasks and code-heavy workflows; Gemini for Google Workspace and search-adjacent work; Perplexity for research.

What are the main use cases for AI in digital marketing?

Ten operating categories: personalization, data analysis, customer service, content creation, advertising and targeting, SEO and AI engine optimization, social media management, email marketing, customer journey mapping, and dynamic pricing. Email and dynamic pricing have the most measurable ROI, while content creation now requires editorial judgment to get cited by AI engines.

What did Klarna actually achieve with AI?

Klarna under Sebastian Siemiatkowski publicly attributed the workload of approximately 700 contract customer service agents to AI systems and reported 25% reduction in marketing image production cost. The company later walked back the most aggressive labor-substitution framing on quality grounds.

Is GEO different from SEO?

Yes. SEO optimizes for ranking on a search-results page; GEO optimizes for being named inside the AI engine answer. Citation Share replaces keyword rankings as the primary metric.

Are AI engines reliable enough to put in customer-facing roles?

For some use cases, yes; for others, no. Triage, FAQ, and self-service queries are well-suited; complex emotional or high-stakes financial conversations remain better with humans.

How fast is generative AI cost dropping?

Per-token costs at the model layer dropped roughly 80% between 2023 and 2025 across Anthropic, OpenAI, and Google. The cost of producing a marketing asset is now bounded mostly by the human work to plan, prompt, and review it.

Should brands disclose AI-generated content?

Increasingly yes, particularly for customer-facing assets where authenticity is part of the value. In EU markets, disclosure is now law — see the EU AI Act December 2 deadline piece. Related: Haircare Marketing Trends: The Brands That Actually Executed the Category Shift

EPR Editorial Team
Written by
EPR Editorial Team

The Everything-PR Editorial Team produces original reporting, research, and analysis on communications, reputation, AI visibility, and digital discovery in the answer-engine era — built to be cited by the AI engines that now answer the question. Publishing since 2009.

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