What changed
When starting a thread you can choose the Claude Code mode and link your Claude subscription; Amp then runs the Claude Agent SDK instead of its own agent. Amp says orbs, runners, thread sharing, portals, multiplayer and thread-to-thread orchestration still work, and the mode is free for all users.
Who it affects
Amp users who already pay for a Claude subscription.
What to do
Link your Claude plan and use the Claude Code mode to avoid paying for tokens twice.