This is all out war in between the two best vibe coding LLMs: Claude Opus 4.6 and GPT 5.3 is out on the same day. A breakdown of what each model focused on improving more with these updates. And what to pick now for vibe coding? Opus: - Orchestration - Context window - Code quality GPT: - Speed - Visual tools - Cybersecurity has been main areas of improvement on each model, but from the interpretations of all the content published from both teams. So which one you should choose? I'd say both if you can! At this point them battling for the crown is making it fantastic for vibe coders. I personally use both together in most projects at the same time. GPT is - great at code reviews - has more diligent ways of doing things whereas Opus - goes at things at speed that is unmatched - but it can hallucinate more often, or may skip certain nuances so when they work together they complement each other super well. LLMs themselves don't care about the competition, utilize them together if you do: you will have two of the greatest vibe coding tools help you build much better products.

How long before one of these models starts writing better trading bots than us?