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A comment on Claude Code is unusable for complex engineering tasks with the Feb updates. Parent comment

Re:Claude Code is unusable for complex engineering tasks wit... by starkparker on Monday April 06, 2026 @02:15PM (#47664711)
> You can also use the ULTRATHINK keyword to use high effort for a single turn

First I've heard that ultrathink was back. Much quieter walkback of https://decodeclaude.com/ultrathink-deprecated/

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Re:Claude Code is unusable for complex engineering tasks wit... by giwook on Monday April 06, 2026 @04:37PM (#47666698)
Pretty sure it's still gone and you should be using effort level now for this.
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Re:Claude Code is unusable for complex engineering tasks wit... by xvector on Tuesday April 07, 2026 @01:34AM (#47671085)
No, ultrathink is back and it's the same thing as high effort for the message in which it is included
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Re:Claude Code is unusable for complex engineering tasks wit... by svnt on Tuesday April 07, 2026 @10:47AM (#47676280)
Right but wasn’t high effort the default effort before? So ultrathink is gone in all but name.
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