It looks like Claude Code switched the default model to Sonnet 4.5, even for max... | Hacker News

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fritzo 10 months ago | parent | context | favorite | on: Claude was down

It looks like Claude Code switched the default model to Sonnet 4.5, even for max users who are paying for Opus. I had to set the environment variable ANTHROPIC_MODEL=opus to get opus back. Sonnet 4.5 indeed acts like a drunken monkey on the math-heavy legacy C++ codebase I'm working on.

antimora 10 months ago [–]

Is it worse for you?

fritzo 10 months ago | [–]

Yes, Sonnet 4.5 was noticeably worse than Opus on my codebase.

zduoduo 10 months ago | | [–]

approval

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