Anthropic launches message threads in public beta to cut agent latency
Anthropic's Claude Platform now offers message threads in public beta.
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Anthropic's Claude Platform now offers message threads in public beta. Instead of resending the full conversation each turn, agents send only new messages plus the previous response ID. The article reports that for requests with 500k to 1M tokens, median time to first token dropped about 35% for most Claude Code users, where the feature is on by default. Threads are held in memory, encrypted, and expire 5 minutes after their last request. Token usage is unchanged because Claude still reads the full conversation each turn.
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Source claims not independently checked; the 35% figure is a vendor-reported median for Claude Code users, and the feature is in public beta.
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Source claims not independently checked; the 35% figure is a vendor-reported median for Claude Code users, and the feature is in public beta.
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Agents send only new messages and the previous response ID instead of the full history each turn.
Source: claude.com ↗Stored source-based brief · key point 1 · AINewsIQ paraphraseFor 500k to 1M token requests, median time to first token dropped about 35% for most Claude Code users.
Source: claude.com ↗Stored source-based brief · key point 2 · AINewsIQ paraphraseThreads expire 5 minutes after the last request, after which the client must resend the full conversation.
Source: claude.com ↗Stored source-based brief · key point 3 · AINewsIQ paraphraseToken usage stays the same because Claude still reads the full conversation on every turn.
Source: claude.com ↗Stored source-based brief · key point 4 · AINewsIQ paraphraseLimits from the stored brief
Source claims not independently checked; the 35% figure is a vendor-reported median for Claude Code users, and the feature is in public beta.
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Claude Platform Message Threads public beta lets agents send only new turns after the first full conversation; Anthropic says median TTFT drops ~35% on 500k–1M token requests while token usage stays the same; threads expire after 5 minutes idle. ClaudeDevs X post Nov 2 had 8.0K likes and 778K views.
Source claims not independently checked; the 35% figure is a vendor-reported median for Claude Code users, and the feature is in public beta.
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- x post ↗ · 8,370 likes, 320 reposts, 310 replies, 250 quotes · observed 11/4/2026, 11:20:00 PM
- x post ↗ · 2 likes, 0 reposts, 5 replies, 0 quotes · observed 11/4/2026, 11:20:00 PM
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Why this may matter
Long-running coding, computer use, and document-heavy agents accumulate large contexts, so resending history each turn adds latency. Reducing time to first token can make these agent sessions more responsive without changing token costs.
Limits and open questions
Source claims not independently checked; the 35% figure is a vendor-reported median for Claude Code users, and the feature is in public beta.
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