Claude Fable 5.1 is now available for Custom Agents.
It's a step up from Fable 5 across the board, especially for complex knowledge work. Plans and summaries tend to be more concise, too.
MCP update: Your Custom Agents can join the chat now.
Connect Notion to ChatGPT, Claude, or Grok Bot through MCP, then chat with any Custom Agent you have access to, all in one conversation.
