Anthropic adds message threads to Messages API, cutting latency for long Claude Code sessions
This story is from 2026-11-03. It is preserved in the archive; the latest stories are on the live feed.
Anthropic launched Message Threads in public beta for the Messages API, letting clients send the conversation once and then only new messages plus a response ID. Anthropic reports about 35% lower time to first token for 500k–1M token requests, with token billing unchanged.
Read the full story at ZDNET AI ↗
Timeline · 6 reports
- 2026-11-05 22:17 · Hacker News Front Page
Claude Code sends your email address to websites - 2026-11-04 02:07 · r/ClaudeAI
Anthropic shipped message threads (beta): Claude Code now sends only new messages per turn, about 35% lower time to first token on 500k to 1M token requests - 2026-11-03 13:46 · The New Stack AI
Anthropic speeds up Claude Code with message threads. But your token bill stays the same. - 2026-11-03 12:35 · The Decoder
Anthropic's Message Threads cut time to first token by 35 percent for long conversations - 2026-11-03 07:28 · ZDNET AI
Is Claude Code truly faster with message threads? I did the math on my logs - 2026-11-03 02:27 · r/ClaudeAI
Anthropic added “message threads” to the Messages API (public beta): send the conversation once, then only new messages. Already on by default in Claude Code