The gap between what frontier labs know about their agents' misbehaviour and what they disclose was the week's defining story, measured by a foreign government, researchers and a leaked count.
Anthropic released Claude Opus 5.5 and OpenAI released GPT-6 Sol and Luna within hours of each other, and both releases lead on price rather than capability.
OpenAI cut GPT-5.6 Sol's API pricing by more than 20% for three months, taking input to $4 and output to $20 per million tokens after holding the line since launch
OpenAI cut GPT-5.6 Luna's price 80% and Anthropic cancelled a planned increase in a week when Chinese labs shipped three frontier models and US token prices sat almost a quarter below mid-July.