Claude Opus 4.6 is not being positioned by Anthropic as merely a stronger general model that happens to write code well, because the company’s current product and launch language frames it much more specifically as a model for professional software engineering, complex agentic workflows, and difficult coding work where reliability across longer and more complicated tasks matters more than raw speed alone. That distinction matters because it shifts the meaning of “good at codi

ChatGPT 5.4 pricing is easy to misread if it is treated as one simple number, because OpenAI currently separates the economics of ChatGPT subscriptions, GPT-5.4 API billing, and the product-side usage rules that determine how much model access a user can actually exercise before running into weekly caps, context-mode constraints, shared workspace credits, or abuse guardrails. That distinction matters because a Plus subscriber, a Pro subscriber, a Business workspace admin, and

Mythos AI is not the kind of AI story that begins with a clean public rollout, a simple pricing page, and a familiar invitation for ordinary users to start trying the model immediately. It begins from a much more unusual position, because Anthropic has described Claude Mythos Preview as its most capable frontier model so far while, at the same time, keeping it out of general public access and limiting availability to a gated research preview for selected approved organization