It’s not always the same, worth to revolve models on hard bugs. Yesterday o3 saved my day, while gpt5-high, claude code (sonnet), gemini pro all failed.
Gpt5-fast-high nails complex bugs most often. Since the cursor guys keep us stupid on context window etc, one has to conclude that it works best in Codex. So I bought plus yesterday.
Thanks for the heads up on grok4, always ignored them as rather bland token wasters.
That stupid grok-code-fast thing can also be usefull for simple bugs like linter errors - it just races thru them.
Also Sonnet in Claude Code seems to write the best plans (Opus supposedly even better).