Mistral Large 4 puts open weights in regulated buyers' hands — Oct 30

Mistral has released Large 4 as open weights with a gated cyber variant, giving regulated buyers a non-Chinese on-prem option that still sits far below the closed frontier on Artificial Analysis. GitHub's Copilot Fusion routes between Anthropic and OpenAI models, and its 77% savings claim does not match the independent 51% figure. Hyperscaler cash flow turned deeply negative at Amazon and Alphabet, OpenAI rewrote its Model Spec, and Claude Code users face retry-driven quota burn.