Claude 3 Opus's next iteration will be massive.

Something that stands out to me is the capacity to dispatch a swarm of sub-agents to work independently and in parallel to solve a task. Now picture each of those sub-agents is capable of deep research, extended thinking, and have the capacity to generate artifacts.

My head cannon is that we've only seen new Sonnet models because Opus (to be released as Claude 4) will be a much larger AI platform rather than a single capable model.

If it's not a platform then it will be a true companion that is capable of proactive agentic behavior. Either way I expect the interaction design will change significantly.