Opus is able to do a lot more, people are doing better plugins and orchestration (looping).

Subagents are now super easy, so you can either have specialized subagents (i have a tester, a bitcoin developer, a reviewer), or just for parallel dev. Each subagent is its own session so it isolated the context window.

Opencode is really good now.

And then things like puppeteer are actually good via mcp now