Per-message effort changes, in beta, are also available on Google Cloud for Claude Fable 5.1, Claude Mythos 5.1, and Claude Opus 5, with the same m… (opens in a new tab)
We've launched Claude Fable 5.1 (claude-fable-5-1), the successor to Claude Fable 5 for long-running agentic coding, knowledge work, and research,… (opens in a new tab)
Scenarios for our Economic Future (opens in a new tab)
Scenarios for our Economic Future Anthropic
Inside Claude for Financial Advisors (opens in a new tab)
Inside Claude for Financial Advisors Anthropic
Even Fable is done with Opus' verbosity... (opens in a new tab)
I have Fable using Opus sub-agents, and I just noticed him adding "Then reply with ONLY (under 15 lines):" to every prompt... 😂
Claude Code 2.1.273 — Added x-claude-code-request-class, x-claude-code-agent-type, x-claude-code-prev-tool-durations, x-claude-code-compaction and x-… (opens in a new tab)
Added x-claude-code-request-class, x-claude-code-agent-type, x-claude-code-prev-tool-durations, x-claude-code-compaction and x-claude-code-context-compacted request headers for LLM gateways; opt in with CLAUDE_CODE_GATEWAY_HINT_HEADERS=1
Claude Code 2.1.273 — Added a notification when an MCP server disconnects mid-session and automatic reconnection gives up, pointing at /mcp (opens in a new tab)
Added a notification when an MCP server disconnects mid-session and automatic reconnection gives up, pointing at /mcp
Claude Code 2.1.273 — Added forking a session started with claude --remote-control or /remote-control from the Claude app; the fork runs as a backgro… (opens in a new tab)
Added forking a session started with claude --remote-control or /remote-control from the Claude app; the fork runs as a background session on your computer
Claude Code 2.1.271 — Added fast mode in Claude Code Remote sessions (cloud and self-hosted runners): the host's fast-mode setting or /fast typed in… (opens in a new tab)
Added fast mode in Claude Code Remote sessions (cloud and self-hosted runners): the host's fast-mode setting or /fast typed in the session applies where your organization allows it
Claude Code 2.1.271 — Added mouse support to the /config panel in fullscreen mode: the wheel scrolls the settings list, a click on a setting's value… (opens in a new tab)
Added mouse support to the /config panel in fullscreen mode: the wheel scrolls the settings list, a click on a setting's value changes it, and the row under the pointer is highlighted
Claude Code 2.1.271 — Added claude self-hosted-runner --drain-marker-file : when that file exists at a SIGTERM drain, the runner reports its exit to… (opens in a new tab)
Added claude self-hosted-runner --drain-marker-file : when that file exists at a SIGTERM drain, the runner reports its exit to the server as a host drain (telemetry only)
The Messages API can now compact a conversation on demand on the Claude API, in beta with the compact-2026-09-04 beta header. (opens in a new tab)
Claude Code 2.1.270 — Fixed read-only git commands in Bash unexpectedly asking for permission after a session had been running for a while (regressio… (opens in a new tab)
Fixed read-only git commands in Bash unexpectedly asking for permission after a session had been running for a while (regression in 2.1.269)