AI

Between September 1 and September 3, 2026, Anthropic made Fable 5.1 generally available, Google shipped Gemini 3.8 Flash, Meta pushed Muse Spark 1.3, and OpenAI released GPT-6 Astra. This course unpacks what a release cluster like that actually tells you about the field, what it doesn't, and how to make sane engineering decisions when the model you standardised on last quarter is suddenly a generation behind.