# Anthropic cuts latency across Claude Code and Messages API

Optimizations lower time to first token via gzip compression, typing-triggered session start, unbuffered requests, and reduced pre-model processing.

- Claude Code now gzips conversation payloads sent on each turn to accelerate data transfer to the model.
- Cloud sessions now initialize immediately when a user begins typing.
- The Messages API eliminated ingress request buffering and cut pre-model processing overhead to reduce initial response latency.

## Why it matters

Developers using Claude Code and the Messages API receive faster response times and lower time to first token.

## Sources

- [Anthropic: Anthropic cuts latency across Claude Code and Messages API](https://x.com/ClaudeDevs/status/2111209208012210409)

---

Summarized by dstilled on 2026-10-16. https://dstilled.ai/story/413adbbd-b20d-48dc-b014-5ea77f5b7a3c