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OpenAI’s GPT-5.3 Codex and Anthropic’s Opus 4.6 Debut With Competing Strengths

OpenAI’s GPT-5.3 Codex and Anthropic’s Opus 4.6 Debut With Competing Strengths

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BitDegree logoBitDegreeFebruary 6, 20261 min read
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Two major artificial intelligence (AI) companies, OpenAI and Anthropic introduced new flagship models on February 5.