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AI Code Generation Anthropic OpenAI

Claude Opus 4.6 vs GPT-5.3-Codex – Which One Is Better?

In a somewhat predictable surprise, Anthropic and OpenAI have both launched new “coding” flagships to their Claude and GPT model family. Claude Opus 4.6 and GPT-5.3-Codex, respectively. If you follow Frontier AI releases, you already know the competition is no longer about who can generate nicer text; it is about who can execute real work […]