the pro subagent is most valuable in chtgpt,but only for 100$+pro user.
if you have some hard and fun task ,give prompt to me , the work env can be mac or linux, just prompt like you send to codex on macos. ill run for you, need most challenge task that need run >3h
GPT-6 Astra Pro in ChatGPT got an upgrade with faster responses and improved use of plugins and tools.
And now, multiple agents can tackle different parts of a task in parallel. You can follow each agent’s progress and open completed tasks to review their work.
Now available to Pro users in the Chat tab.
Oct 20, 2026 · 6:44 AM UTC