Anthropic uses gzip to reduce Claude Code latency

Anthropic improved the latency performance of Claude Code. According to an Analytics India Magazine report on October 19, 2026, Anthropic said on X that Claude Code now compresses with gzip before sending each conversation turn, so content reaches the model faster; cloud sessions also start as soon as the user begins typing. The report said that compared with August, local sessions are 3 times faster and cloud sessions 2.8 times faster, and the API, chat and Cowork platforms are 1.5 times faster. The report also explained that these figures are measured by p90 first-token latency and exclude model processing time; the Claude API figures use p50 first-token time including model processing time. Anthropic has publicly described this improvement, and there are no further developments so far.

AI-generated from public reports

1. Oct 19· 1 reports

   Anthropic uses gzip to reduce Claude Code latency

   Source:Analytics India Magazine