GPT-4o is different from GPT-4, you can "feel" it is smaller model that really struggles to do reasoning and programming and has a much weaker logic.

If you compare to Claude Sonnet, just the context window considerably improves the answers as well.

Of course there is no objective metrics, but from a user perspective I can see the coding skills are much better in Anthropic (and it's funny, because in theory, according to benchmarks it is Google Gemini the best, but in reality is absolutely terrible).