GEO Evolution Since ChatGPT's Arrival

In summary: GEO has evolved through four phases since November 2022. Phase 1 (2022-2023): observation and experimentation, without shared methodology. Phase 2 (2023-2024): emergence of first analytical frameworks and monitoring tools. Phase 3 (2024-2025): discipline structuring with dedicated budgets and integration into marketing organizations. Phase 4 (since 2025-2026): industrialization, expansion to multiple engines, alignment with traditional SEO. The discipline has reached a maturity level comparable to SEO in 2008-2010, with recognized standards that continue to evolve.

In November 2022, ChatGPT reached one million users in five days. Marketing directors at major brands were entertained. Three years later, they were investing six-figure budgets to understand why their brands no longer appeared in responses from these same AI assistants. The transformation is rapid, but it follows a trajectory that breaks down into identifiable phases.

Understanding this trajectory illuminates the current situation. Where we stand in 2026 reflects decisions and lessons learned over three years. Anticipating what comes next requires grasping where the discipline has been and why.

Phase 1 (November 2022 — End of 2023): Observation and Confusion

During the first year, GEO did not exist as a discipline. Brands observed ChatGPT with curiosity, without a methodological framework. A few pioneering articles mentioned "strategies for ChatGPT" but lacked rigor. Practices were limited to publishing more content, adding FAQs, and testing a few prompts manually.

Confusion was widespread. Many believed you had to "talk to ChatGPT" via chat so it would "learn" the brand, revealing a fundamental misunderstanding of how models work. Others bet on prompt injection or manipulation techniques, quickly countered by model editors.

The first measurable signals emerged in late 2023, with the launch of ChatGPT Plus with web browsing and Bing Chat (which became Copilot). At this point, pages best structured for traditional SEO mechanically appeared more often in responses, without the cause being understood.

Phase 2 (2024): A Discipline Emerges

2024 marks the progressive structuring of a discipline. Several foundational articles appear—first in the United States, then in France—that formalize the first analytical frameworks. The term GEO becomes established in contrast to AEO and SEO. Monitoring tools appear, capable of testing dozens of prompts monthly across major LLMs.

The first dedicated budgets emerge in large enterprises. Initially integrated into SEO, they gradually gain independence. Specialized agencies begin positioning themselves. Schools add GEO modules to their training programs.

Practices become more refined. Extractable content discipline, systematic Schema.org use, and prompt listening enter methodologies. To establish the foundations of GEO today, we rely heavily on the methodological gains from 2024.

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Phase 3 (2025): Mass Adoption

2025 sees GEO become a recognized budget line in the majority of mature marketing organizations. Multiple triggering factors are at play: the generalization of Google's AI Overviews, the rise of Perplexity, measurable drops in outbound clicks, and alerts from executive leadership about the silent disappearance of entire channels.

Tools gain sophistication. Monitoring platforms now test hundreds of prompts weekly across five to ten engines simultaneously, segment by persona, and track changes monthly. Methodologies refine: scoring grids, audit frameworks, audit-action-measure processes.

The discipline remains fragmented at this stage. Terminology varies—some speak of GEO, others of extended AEO, still others of Search Generative Experience. Audit methodologies are not standardized. Marketing leaders sometimes struggle to choose between providers with very different approaches.

Phase 4 (Since Late 2025): Industrialization

The current phase is characterized by three simultaneous movements. First, tool industrialization—platforms now integrate multi-LLM monitoring, automated scoring, actionable recommendations, and manageable reporting. Second, convergence with traditional SEO—integrated teams gradually replace silos, and editorial calendars serve both objectives. Third, engine diversification—beyond the five major LLMs, GEO extends to vertical assistants, enterprise search engines, and assistants embedded in SaaS tools.

Methodological standards converge. A GEO audit framework in 2026 resembles another sufficiently, regardless of provider, that comparisons are possible. Professional certifications are beginning to emerge.

Two Pivotal Moments That Changed Practice

May 2024, official launch of AI Overviews in the Google SERP across most markets. Many marketing directors discover at this moment, within weeks, that their traditional SERPs change radically and clicks plummet. This awareness triggered the first serious GEO budgets in companies that didn't believe in it six months earlier.

November 2024, native integration of ChatGPT as the default assistant on certain devices and browsers. This integration shifted GEO's status from complementary channel to central channel for many B2C sectors, particularly e-commerce and consumer services.

In summary: GEO has structured itself in four phases since 2022, moving from observation to industrialization. Practices have consolidated, methodologies have converged, tools have become more sophisticated. The discipline has reached a maturity level today comparable to SEO in 2008-2010—recognized, budgeted, measurable, but still evolving rapidly. Understanding the history allows anticipating the next stage: deep integration into marketing organizations and complete alignment with other visibility disciplines.

At a Glance

• Phase 1 (2022-2023): observation, experimentation, confusion.
• Phase 2 (2024): emergence of a methodological discipline.
• Phase 3 (2025): mass adoption and dedicated budgets.
• Phase 4 (since late 2025): industrialization and convergence with SEO.
• Current maturity comparable to SEO in 2008-2010.

Conclusion

This historical perspective is useful for brands still hesitant. It shows that GEO is neither a fad nor a technical bubble: it's a discipline following the classical trajectory of new marketing practices, entering its maturity phase. Brands investing now join a structured field; those waiting two or three more years will join a standardized discipline with much higher entry costs.

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