Yes, good name and I also feel that was a major inflection point. Up until then I found all AI models to be terrible at programming, with the difference between GPT o3, Sonnet 4 and every other model since GPT-3 being just the exact flavor of terrible they were.
November 2025, with Opus 4.5, was the first time I was impressed by an LLM doing something non-trivial with a reasonably good level of quality.
November 2025, with Opus 4.5, was the first time I was impressed by an LLM doing something non-trivial with a reasonably good level of quality.