IANAL, but it sounds as though law hallucinations are the final frontier. Sorry.

But coding-wise, models keep getting better and cheaper. You can train for code correctness in a way you can't train for legal correctness, and you can test your code in an agentic loop in a way you can't test a legal opinion.

Hence your alternative reality.

(All that said, 2023 was GPT-4 territory. GPT-4o wasn't released until 2024. No matter what question you're asking, I struggle to believe you wouldn't notice the difference between GPT-4 and the current frontier model set. You can download and run any number of sub-27B local models that will be better than GPT-4. The pace of change in this field really has been insane.)

I'm a software engineer and I'm in a similar boat. The models have definitely gotten better, but all the latest frontier models have been within the same order of magnitude of usefulness for many months now. Opus 4.5 was a huge boon in productivity, and I certainly write less code by hand than I did when it came out, but I can't say that my workflow has changed drastically for many months. Every model still takes some amount of babysitting to ensure it's doing the right thing, and they all make silly mistakes sometimes.

You get no better result from Opus 5.5 than Opus 4.1 (frontier this time last year)?