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AI news on February 5, 2026 · Thursday

12 stories — deduplicated across sources, ranked by significance, every source cited.
★ Top story · ModelsFeb 5

GPT-5.3-Codex System Card

GPT‑5.3-Codex is the most capable agentic coding model to date, combining the frontier coding performance of GPT‑5.2-Codex with the reasoning and professional knowledge capabilities of GPT‑5.2.

Introducing OpenAI Frontier

Models·OpenAI Blog·Feb 5
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Introducing Trusted Access for Cyber

Models·OpenAI Blog·Feb 5
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Introducing GPT-5.3-Codex

Models·OpenAI Blog·Feb 5
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Navigating health questions with ChatGPT

Opinion·OpenAI Blog·Feb 5
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Introducing SyGra Studio

Models·Hugging Face Blog·Feb 5
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How the AI boom shrugged off the DeepSeek shock and keeps gaining steam

Models·Peterson Institute for International Economics·Feb 5
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