History of Artificial Intelligence: From Turing to ChatGPT | AI for GIs 3 (Updated OCT26)

Explore the history of artificial intelligence, from Turing and Dartmouth to expert systems, AlexNet, Transformers and ChatGPT. Learn how to read the evidence behind the milestones. This companion connects proposals, research results and practical applications. It examines competing accounts of AI winters, the conditions behind AlexNet’s 2012 ImageNet result, parallel training and sequential generation, GPT-3, ChatGPT and a dated Army application report. A fictional staff exercise asks what the evidence actually establishes. AI for GIs: Applied AI, Class 3. Updated October 2026 companion lesson. For the detailed foundation, watch the original Class 3:    • Class 3: History of AI | AI for GIs   This companion runs alongside the original course. Join us on NIPR Teams: AI for GIs. YouTube: @webb8020    / @webb8020   X: @webb8020 https://x.com/webb8020 TikTok: @justin.webb   / justin.webb   Instagram: @pstrategus   / pstrategus   LinkedIn: /in/tjustinwebb   / tjustinwebb   Companion series playlist:    • AI for GIs: Applied AI | Companion Series   Slides and handout: https://pensator-strategus.notion.sit... #AIforGIs #AppliedAI Chapters 00:00 AI for GIs Applied AI Class 3 00:43 Historical milestones and the evidence behind them 01:35 Turing’s question, 1950 02:26 The Dartmouth proposal and workshop 03:19 Lighthill and the first winter narrative 04:17 Expert systems and disagreement about winters 05:29 A fictional proposal under review 06:19 AlexNet’s 2012 benchmark result 07:22 What top-5 error measures 08:16 Data, hardware and training methods 09:07 The 2017 Transformer and self-attention 10:00 Parallel training and sequential generation 11:05 GPT-3 and few-shot prompting, 2020 12:03 ChatGPT’s 2022 research preview 13:01 The 2023 product-family announcements 13:49 The model inside a modern application 14:43 A dated Army application report 15:40 Exercise: read the result and challenge the pitch 16:37 Answer key and historical connections 17:36 History as a guide to the next demonstration 18:31 Original Class 3 and the AI for GIs community