Steven Heidel
@stevenheidel.com
📤 1341
📥 90
📝 222
API @OpenAI | 🏳️🌈 he/him
exciting to see my current and former employers working together to scale AI compute!
5 days ago
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just made a donation to the Python Software Foundation. groups like the PSF should not be forced to add/remove unrelated policies in order to receive scientific grants.
add a skeleton here at some point
10 days ago
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seems like a good day to remind everyone of the temporary chat button in ChatGPT, which will disable memory and remove the conversation from your history
25 days ago
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another successful DevDay in the books. thanks to everyone who attended and also to our incredible events team - it was our biggest one yet!
about 1 month ago
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between the Apps SDK, Codex SDK, and AgentKit - how many startups did OpenAI just create today?
about 1 month ago
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ChatGPT, the everything app
about 1 month ago
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it’s difficult to overstate how important Codex has been to our team’s ability to ship new products. for example: the drag and drop agent builder we launched today was built end to end in under 6 weeks, thanks to Codex writing 80% of the PRs
about 1 month ago
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want more users? how does 800M users sound? build and distribute your apps within ChatGPT with the new Apps SDK
about 1 month ago
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Sam’s DevDay keynote starts in 15 minutes! what do you think he’s going to announce? 👀
about 1 month ago
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looking forward to DevDay today! send me a message if you're there and want to meet up - DMs are open
about 1 month ago
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want to sell your products directly to ChatGPT users? try out the new Agentic Commerce Protocol (ACP)
developers.openai.com/commerce
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Agentic Commerce
Design flows for embedded commerce in ChatGPT.
https://developers.openai.com/commerce
about 1 month ago
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why we built the Responses API
developers.openai.com/blog/respons...
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Why we built the Responses API
How the Responses API unlocks persistent reasoning, hosted tools, and multimodal workflows for GPT-5.
https://developers.openai.com/blog/responses-api
about 2 months ago
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just popped a bunch of tylenol so i can understand LLMs better
about 2 months ago
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i was privileged to become american thanks to the h-1b visa. the program has its flaws, but adding a $100k "bribe" (which can be arbitrarily waived if you please the right people) is not the answer
about 2 months ago
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first they came for the immigrants, then they came for the comedians - but it’s fine since i’m not any of those things
about 2 months ago
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ChatGPT now fully supports MCP tools, including write actions! just turn on the new "developer mode" in the settings
about 2 months ago
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the Realtime API has gained support for MCP, plus a better model, new voices, and SIP phone calling
2 months ago
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🆕 you can now connect Responses API to more sources, like Gmail and Google Calendar!
3 months ago
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GPT-5 is here, and it's incredible. try it in ChatGPT and the API today.
openai.com/gpt-5/
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https://openai.com/gpt-5/
3 months ago
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for every step forward the US takes in AI, we take two steps backwards somewhere else. this week it's destroying a perfectly good satellite and canceling funding to one of the most promising technologies for beating cancer
3 months ago
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ensuring that AGI benefits all of humanity requires accepting a simple fact: that not all of humanity will have access to the internet all of the time. that's why local, open source models are so important.
3 months ago
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Open AI
openai.com/open-models/
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Open models by OpenAI
Advanced open-weight reasoning models to customize for any use case and run anywhere.
https://openai.com/open-models/
3 months ago
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also congrats to my friends at Anthropic on the release of Opus 4.1 today!
www.anthropic.com/news/claude-...
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Claude Opus 4.1
Anthropic is an AI safety and research company that's working to build reliable, interpretable, and steerable AI systems.
https://www.anthropic.com/news/claude-opus-4-1
3 months ago
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this is absolutely incredible - a real "see the AGI" moment. congrats to the Google DeepMind team!
deepmind.google/discover/blo...
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Genie 3: A New Frontier for World Models
Today we are announcing Genie 3, a general purpose world model that can generate an unprecedented diversity of interactive environments. Given a text prompt, Genie 3 can generate dynamic worlds...
https://deepmind.google/discover/blog/genie-3-a-new-frontier-for-world-models/
3 months ago
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this is going to be an exciting week!
3 months ago
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Trump's war on numbers continues: after firing the head of labor statistics he's now cut funding to one of America's greatest mathematicians
3 months ago
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you can't trust the economic data coming out of Venezuela these days. any time President Maduro sees a report he doesn't like he'll just fire whoever wrote it
3 months ago
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you think you're locked in? my deadbolt is broken and i literally can't open the door
3 months ago
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OpenAI DevDay 2025 registration is now open - see you there!
devday.openai.com/2025
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OpenAI DevDay 2025
https://devday.openai.com/2025
4 months ago
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just passed two years at @OpenAI - 5 star experience so far
4 months ago
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introducing ChatGPT Agent: available to Pro users today, and to Plus and Team users by the end of the week
4 months ago
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new version of image generation in the API with improved preservation of input images - much better for editing!
4 months ago
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those $100M offers might sound compelling now, but if Trump fires Powell that won’t even be enough for a cup of coffee
4 months ago
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walking into a gay bar
4 months ago
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grok 3 had high reasoning, grok 4 has heil reasoning
4 months ago
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thanks for 1K followers - happy 4th of july! 🇺🇸
4 months ago
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4 months ago
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celebrating a decade since the supreme court legalized gay marriage in the US!
5 months ago
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deep research, web search with o3/o4-mini, web search price drop, and webhooks!
5 months ago
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developers: join me and others from the OpenAI API team at DevDay 2025!
devday.openai.com
5 months ago
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“I’m also from San Fran”
5 months ago
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OpenAI developers: have you tried out Remote MCP servers in the Responses API? what can we improve?
5 months ago
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lots of excitement for MCP in Paris this week!
5 months ago
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the OpenAI API is back to running at 100% again, plus we dropped o3 prices by 80% and launched o3-pro - enjoy!
5 months ago
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ChatGPT and the API are currently experiencing elevated errors and latency, we are rolling out a fix
5 months ago
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Elon should rename that other site to Ex
5 months ago
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turns out straight men can’t love each other that much
5 months ago
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they’re eating the doges, they’re eating the cats
5 months ago
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OpenAI means business - livestream at 10am PT
5 months ago
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called it
add a skeleton here at some point
5 months ago
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