Claude Code 2.1.271 adds fast mode for remote sessions, cuts prompt tokens by 28.7%

ClaudeCodeLog · x · 2026-09-15

Claude Code CLI 2.1.271 shipped (2 days after 2.1.270), adding fast mode to remote sessions (cloud and self-hosted runners), activatable via the host setting or typing /fast in-session where the organization allows it.
Fullscreen /config panel gains mouse support: wheel scrolls settings, clicking a value changes it.
Tracking data shows prompt tokens dropped 8,130 (-28.7%), with tools rising from 53.7% to 79.2% of the mix and system falling from 46.3% to 20.8%; bundle grew 651.1 kB (+1.4%).
Also refreshed model lists and added self-hosted-runner-related environment variables.

More from coding & agent