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Comment by tlarkworthy

10 hours ago

I redid Dan's zstd rust rewrite benchmark for Anthropic models and was shocked to find haiku 5.5 can do it. The latest models are nuts.

https://taktile.com/blog/property-based-testing-claude

For me the most recent Claude models are consistently delivering complex PRs that only receive minor and nit level feedback from multiple automated AI reviewers. I rarely plan anymore, but still submit fairly long dictated prompts. It took me a couple of weeks to realize this was the case, and I haven't done any analysis on pre-5.5 PRs, but it definitely feels like they quietly crossed some kind of new threshold of quality and accuracy in coding.

Or the code has been added to the training data.

  • It may or may not have, but it does match my experience that haiku is quite good at coding implementations on its own now