The day in AI

Thursday 5 March 2026

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Everything from this day

Launches and products

5 Mar 2026OpenAIGPT-5.4 and GPT-5.4 Pro GPT-5.4 is OpenAI's first general-purpose model with native computer use, scoring 75.0% on OSWorld-Verified, with a 1M-token context.

Research

5 Mar 2026OpenAIReasoning models struggle to control their chains of thought OpenAI finds frontier reasoning models rarely control their chain of thought even when told it is monitored, which supports CoT monitoring.