System Card: Claude Mythos Preview [pdf]

Re:System Card: Claude Mythos Preview [pdf] by psubocz on Tuesday April 07, 2026 @06:07PM (#47681973)

I felt like opus was dumbed down for a few weeks... I don't say they did it on purpose, but it's an interesting coincidence.

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Re:System Card: Claude Mythos Preview [pdf] by SkyPuncher on Tuesday April 07, 2026 @07:08PM (#47682479)

Yes, I agree. I’m about to drop Claude Code because it’s become literally unusable.

Today, Opus went in circles trying to get a toggle button to work.

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Re:System Card: Claude Mythos Preview [pdf] by rbliss on Wednesday April 08, 2026 @07:00AM (#47688473)

Same. Asked CC Opus about a change in a particular file...it looked in a totally different file and told me there was no change.

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Re:System Card: Claude Mythos Preview [pdf] by SkyPuncher on Wednesday April 08, 2026 @05:27PM (#47696507)

I've switched to max thinking mode as my default and that's helping in some capacity.

It's not necessarily back to where it was, but it's not desk-flipping bad.

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