Copilot at $10/mo. lets you use Sonnet 4 in VS Code, which has been working very well for me in agent mode. Curious what Claude Max offers that sets it apart.
You're right. Agent mode with select models (no o3 or Opus unfortunately) is available to Copilot Pro users (also provided for free to eligible FOSS developers) on latest VSCode (I hadn't updated it in over 5 months). Per docs, the newly announced Coding Agent (available on the website only) however isn't. And this was the source of my confusion.