Observations · AI and Business Since 2022
Education
ChatGPT reached students faster than any institution could respond — first as a cheating panic, then as curriculum. Tutoring economics inverted: a personal, always-available tutor became effectively free, while assessment design had to assume AI assistance everywhere.
What drove it
ChatGPT (free GPT-4o mattered most), Claude for long-document study, Khanmigo and AI tutoring products, and voice-mode models that made conversational learning natural.
The evolution
2022
Students adopted ChatGPT faster than any institution could respond; the essay-based assessment model broke in a semester.
- OpenAI launches ChatGPT — the generative AI era begins
It turned years of lab research into a mass-market product overnight and forced every major technology company to respond within weeks. Google declared an internal code red.
2023
GPT-4 passed the bar and AP exams, 100 million users made AI tutoring effectively free, and institutions began swinging from bans to integration.
- ChatGPT hits 100M users — fastest-growing consumer app in history
The statistic became the single most-cited proof that generative AI was a mainstream consumer phenomenon, not a tech-insider toy.
- GitHub Copilot goes enterprise as Stack Overflow traffic slides
Software development became the first profession with measurable, at-scale AI workflow substitution — visible in the decline of the web's canonical programming Q&A site.
- GPT-4: AI passes the bar exam
GPT-4 reset expectations of what AI could do in professional domains — law, medicine, finance, coding — and became the benchmark every rival measured against for over a year.
- Anthropic launches Claude; Claude 2 goes public in July
It established a credible safety-focused rival to OpenAI and made long-context document processing a competitive differentiator.
- OpenAI DevDay: GPT-4 Turbo, custom GPTs, and the platform play
OpenAI pivoted from model vendor to platform company, aiming to own the application layer the way app stores owned mobile.
- Google announces Gemini 1.0, its answer to GPT-4
Google's first credible claimed answer to GPT-4 after a year of being perceived as behind.
2024
GPT-4o's free voice mode made conversational tutoring mainstream, and reasoning models (o1) reached olympiad-level math.
- GPT-4o: real-time multimodal AI goes free
Real-time, natural multimodal interaction reached a mass-market free product, resetting the price-performance bar.
- The reasoning era: OpenAI ships o1, then announces o3
Inference-time reasoning emerged as a new scaling axis distinct from model size — capability could now be bought with thinking time.
- AI wins the Nobel Prizes
An unprecedented scientific endorsement: machine learning recognized as a transformative tool across disciplines.
2025
Reasoning reached every free user via GPT-5, and AI literacy entered curricula as assessment redesign matured.
- GPT-5 becomes the default for ChatGPT's hundreds of millions
Hundreds of millions of free users got their first reasoning model; the launch's incremental feel also fed the year's bubble debate.
2026
The question moved from 'how do we stop it' to credentialing and the early-career pipeline: as AI compressed entry-level work, Anthropic funded a national fellowship and Stanford's indicators tracked employment in AI-exposed occupations — the apprenticeship problem became a measured, funded concern.
- Anthropic publishes an economic policy framework for AI displacement
A market-leading developer is formally proposing to be taxed to fund — and to have its releases gated by — the disruption its own products may cause. Read the incentives: the disruptor is moving first to shape the rules of its own disruption.
Key sources
The papers, announcements, and reports that document this industry's shift. Each also lives in the Library.
What businesses do differently
Institutions moved from banning to integrating: AI-resistant assessment (oral, in-person, process-based), AI literacy as a subject, and personalized practice at scale. Corporate training quietly became one of AI's strongest use cases.
What this means for founders and leaders
The opportunity is not 'ChatGPT for school' — it is rebuilding assessment, credentialing, and skill verification for a world where output is no longer proof of understanding.