> Instruction following. Opus 4.7 is substantially better at following instructions. Interestingly, this means that prompts written for earlier models can sometimes now produce unexpected results: where previous models interpreted instructions loosely or skipped parts entirely, Opus 4.7 takes the instructions literally. Users should re-tune their prompts and harnesses accordingly.

Yay! They finally fixed instruction following, so people can stop bashing my benchmarks[0] for being broken, because Opus 4.6 did poorly on them and called my tests broken...

[0]: https://aibenchy.com/compare/anthropic-claude-opus-4-7-mediu...