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Anthropic ends research preview and waitlist for Opus 5.5 fast mode on Claude Platform

1 article1 sourcesince Oct 15Last article 1h ago ·

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Anthropic says fast mode for Claude Opus 5.5 on the Claude Platform is no longer in research preview and its waitlist has been removed.

The mode runs the same model up to 2.5x faster at $8 per million input tokens and $40 per million output tokens. ClaudeDevs, Anthropic's developer account on X, also says the mode is available in Microsoft Foundry on Azure, with Google Cloud coming soon.

Fast mode in Claude Code is unchanged and continues to use extra usage credits.

Written by AI from the articles below · updated Oct 15, 4:16 PM ET

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Latest developmentOct 15, 4:09 PM ET
Claude Opus 5.5 fast mode leaves research preview and drops its waitlist

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Oct 15
  1. ClaudeDevsOfficial
    Claude Opus 5.5 fast mode leaves research preview and drops its waitlist

    AIAnthropic's ClaudeDevs says fast mode for Claude Opus 5.5 on the Claude Platform is no longer in research preview and the waitlist has been removed. The mode runs the same model up to 2.5x faster at $8 / $40 per million tokens. It is also available in Microsoft Foundry on Azure, with Google Cloud coming soon, while fast mode in Claude Code is unchanged and uses extra usage credits.

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