Twitter @Sam Altman · Scour

RT Nan Ransohoff: The new OpenAI nonprofit just announced that it aims to spend $1B in its *first year" and will be led by two superb humans -- @Jacob...

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I would like a single word for this phrase: "throw it into the maw with every bit of context I can think of".

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I have loved being on the Helion board; I continue to be extremely excited about a future with abundant energy and Helion in particular. As Helion and...

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I have so much gratitude to people who wrote extremely complex software character-by-character. It already feels difficult to remember how much effort...

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It is also very smart, but...I generally agree with this, and really feel it myself on the 5.3 -> 5.4 upgrade.

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Great first week for 5.4 in the API. Builders building fast.

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RT Tibo: Hello subagents in codex. Have seen some awesome new and creative workflows emerge from these https://developers.openai.com/codex/subagents/

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The Codex team are hardcore builders and it really comes through in what they create. No surprise all the hardcore builders I know have switched to Co...

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RT Derya Unutmaz, MD: 32× efficiency improvement in just the last 3 months, that’s the crazy jump from GPT-5.2 to GPT-5.4! 37 cents/task is essentia...

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RT Tibo: Working at OpenAI is fun because questioning everything and taking risks is part of the culture. Within Codex, the team asks itself how we co...

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GPT-5.4 is great at coding, knowledge work, computer use, etc, and it's nice to see how much people are enjoying it. But it's also my favorite model t...

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Very grateful to Jensen for working to expand Nvidia capacity at AWS so much for us!

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Wow real range of emotion reading the second and then the the third paragraph.

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"What is the hardest question I could ask you that you might get right?"

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GPT-5.4 is really good at spreadsheets; a few finance people have finally said things to me like "huh I guess this AI thing is real"

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We will be able to fix these three things!

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Forgot to mention /fast! I think people will like this.

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Codex app on Windows!

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GPT-5.4 is launching, available now in the API and Codex and rolling out over the course of the day in ChatGPT. It's much better at knowledge work and...

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RT Noam Brown: GPT-5.4 is a big step up in computer use and economically valuable tasks (e.g., GDPval). We see no wall, and expect AI capabilities to ...

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