About AI Timeline
AI Timeline is an independent, continuously updated reference to the history of artificial intelligence — 81 milestones across 11 eras, from 1943 to 2026.
What this is
Every milestone page answers four questions: what happened, who was involved, why it mattered, and how impactful it was. Milestones are cross-linked by people, organizations, eras, categories, tags, and years, so the timeline reads as a connected graph rather than a flat list.
How milestones are selected
Inclusion is editorial and deliberately selective. A milestone earns a place if it measurably changed the direction, capability, or public understanding of AI — across research, products, culture, regulation, infrastructure, competitions, and open-source releases. The aim is a defensible shortlist of moments that bent the curve, not an exhaustive log of every model or paper.
The impact scale
Each milestone is rated 1–5 for how much it shifted the trajectory of the field.
- 5
- Landmark, field-defining moment
- 4
- Major breakthrough
- 3
- Significant development
- 2
- Notable step
- 1
- Early or incremental step
Citing and reuse
Facts here are free to cite with attribution to “AI Timeline” and a link to the relevant page. The site is built to be machine-readable: schema.org structured data on every page, a full sitemap, and an llms.txt index for AI answer engines.
Frequently asked questions
What is AI Timeline?+
AI Timeline is an independent, continuously updated reference documenting the history of artificial intelligence — 81 milestones across 11 eras, from 1943 to 2026. Each entry records what happened, who was involved, why it mattered, and how impactful it was.
How are milestones selected?+
Milestones are chosen for their lasting effect on the field: research breakthroughs, product launches, cultural moments, regulation, infrastructure, competitions, and open-source releases that measurably changed the direction, capability, or public understanding of AI. The goal is a defensible shortlist of moments that bent the curve, not an exhaustive log of every release.
What does the impact score mean?+
Every milestone is rated 1–5. A 5 marks a landmark, field-defining moment (for example AlexNet, the Transformer, or ChatGPT); 4 is a major breakthrough; 3 a significant development; 2 a notable step; and 1 an early or incremental step. The score reflects how much an event shifted the trajectory of AI.
How current is the timeline?+
The timeline currently runs through 2026 and is updated as significant new milestones occur. Page-level structured data carries a last-modified date so search engines and answer engines can see how fresh the content is.
Can I cite or reuse AI Timeline?+
Yes. Facts on AI Timeline are free to cite with attribution to "AI Timeline" and a link to the relevant page (https://aitimeline.world). The site is built to be machine-readable, with schema.org structured data on every page and an llms.txt index for AI answer engines.