More details here: openaifoundation.org/news/up…
@sama
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OpenAI Foundation launches with $1 billion commitment to AI safety
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AI will help discover new science, such as cures for diseases, which is perhaps the most important way to increase quality of life long-term. AI will also present new threats to society that we have to address. No company can sufficiently mitigate these on their own; we will need a society-wide response to things like novel bio threats, a massive and fast change to the economy, extremely capable models causing complex emergent effects across society, and more. These are the areas the OpenAI Foundation will initially focus on, and in my opinion are some of the most important ones for us to get right. The Foundation will spend at least $1 billion over the next year. @woj_zaremba, co-founder of OpenAI, will transition to Head of AI Resilience. I believe that shifting how the world thinks about safety to include a Resilience-style approach is critical, and I am extremely grateful to Wojciech for taking on this role. Wojciech has been my cofounder for the last decade; anyone who knows him will understand what I mean when I say he is one of a kind. He has a lot of ideas about how we build a new kind of AI safety. @JacobTref is joining as Head of Life Sciences and Curing Diseases. @annaadeola, our VP of Global Impact, will transition to Head of AI for Civil Society and Philanthropy. @robert_kaiden is joining as Chief Financial Officer. @jeffarnold is joining as Director of Operations.
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Sam Altman Steps Down from Helion Board for OpenAI Partnership
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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 OpenAI start to explore working together at significant scale, it is difficult for me to be on both boards. (I will have a financial interest in Helion so still be recused from negotiations, but from a governance perspective this will make things easier for both companies.) David and Chris are exceptional founders and I think people will be quite impressed by the company's progress. David Kirtley (@Dkirtley) Sam Altman is stepping down from Helion’s Board of Directors. This decision enables Helion and OpenAI to explore future partnerships to bring zero-carbon, safe electricity to the world, which Helion is perfectly poised to deliver. Sam has played an integral role in Helion’s development; I am extremely grateful for his commitment to Helion since he joined our board in 2015. He has pushed me and the Helion team to dream big, build with urgency, and focus on the thing that matters most: deploying fusion for our customers as quickly as possible to fully satisfy the world’s need for clean and abundant energy. Fusion would not be where it is today if it were not for Sam’s support over the last decade. Sam, thank you for your vision, your encouragement, and your commitment to Helion. I look forward to working with you in this new capacity. — https://nitter.net/Dkirtley/status/2036120194805014537#m
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GPT 5.4 Success: Humanity Over Raw Technical Capability
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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. rohit (@krishnanrohit) GPT 5.4 is very good, but its most distinguishing characteristic is its humanity. 5.3 Codex was already incredible at coding so it's interesting to see what made it so much more successful. People claim they want a 10x autist savant coder, but what they want is personality. — https://nitter.net/krishnanrohit/status/2033616786978181185#m
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GPT-5.4 API Launch Achieves Record-Breaking First Week Performance
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Great first week for 5.4 in the API. Builders building fast. Greg Brockman (@gdb) gpt-5.4 has ramped faster than any other model we've launched in the API: within a week of launch, 5T tokens per day, handling more volume than our entire API one year ago, and reaching an annualized run rate of $1B in net-new revenue. it's a good model, try it out! — https://nitter.net/gdb/status/2033605419726483963#m
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Subagents Now Available in Codex for Workflow Acceleration
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Hello subagents in codex. Have seen some awesome new and creative workflows emerge from thesehttps://t.co/kw1ua4QjMh https://t.co/ppWRCfIswe
— Tibo (@thsottiaux) 16 mars 2026Hello subagents in codex. Have seen some awesome new and creative workflows emerge from these Subagents are now available in Codex. You can accelerate your workflow by spinning up specialized agents to:
• Keep your main context window clean
• Tackle different parts of a task in parallel
• Steer individual agents as work unfolds -
Codex Team: Hardcore Builders Switching Platforms Fast
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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 Codex. Usage of Codex is growing very fast:
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GPT-5.4 reaches 90% with 32x efficiency improvement in three months
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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 essentially almost at human-level efficiency (target was 24 cents/task). This was inconceivable a year ago when o3 cost $4500/task on ARC-AGI-1, 12,000x improved! Jesse🔸⏹️ (@PoliticalKiwi) GPT-5.4 (High) has now cleared 90% on this benchmark at a cost of just $0.37/task So that's a 32x efficiency improvement in the last three months, or 12000x since December 2024 — https://nitter.net/PoliticalKiwi/status/2033142190520905763#m
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OpenAI’s Culture of Risk-Taking and Continuous Innovation at Codex
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Working at OpenAI is fun because questioning everything and taking risks is part of the culture. Within Codex, the team asks itself how we could make it an order of magnitude better every few months and then sets most things aside to go and do it across the entire stack. Some examples were the Codex App and our first deployment of Cerebras inference with WebSockets. We are now well under way on the next bet and it’s making even our best engineers nervous as it’s at the edge of what’s possible today.
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GPT-5.4 excels at work and conversation with improved personality
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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 to talk to! We have missed the mark on model personality for awhile, so it feels extra good to be moving in the right direction.