OpenAI launches GPT-5.4 with native computer use mode, financial plugins for Microsoft Excel, Google Sheets

The AI updates aren’t slowing down. Literally two days after OpenAI launched a new underlying AI model for ChatGPT called GPT-5.3 Instant, the company has unveiled another, even more massive upgrade: GPT-5.4. Actually, GPT-5.4 comes in two varieties: GPT-5.4 Thinking and GPT-5.4 Pro, the latter designed for the most complex tasks. Both will be available…

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OpenAI’s Pentagon deal once again calls Sam Altman’s credibility into question

Altman was supportive of Anthropic in its contract dispute with the Pentagon, but all the while he was positioning his company to supplant its rival’s AI models with its own.   Welcome to AI Decoded, Fast Company’s weekly newsletter that breaks down the most important news in the world of AI. You can sign up to receive this newsletter every week via…

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Anthropic CEO Dario Amodei calls OpenAI’s messaging around military deal ‘straight up lies,’ report says

Anthropic co-founder and CEO Dario Amodei is not happy — perhaps predictably so — with OpenAI chief Sam Altman. In a memo to staff, reported by The Information, Amodei referred to OpenAI’s dealings with the Department of Defense as “safety theater.” “The main reason [OpenAI] accepted [the DoD’s deal] and we did not is that…

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