$100 in Codex credits for college student in U.S. and Canada: OpenAI Developers (@OpenAIDevs) Meet Codex for Students. We're offering college students in the U.S. and Canada $100 in Codex credits. Our goal is to support students to learn by building, breaking, and fixing things. chatgpt.com/codex/students — https://nitter.net/OpenAIDevs/status/2035033703274201109#m
@gdb
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OpenAI welcomes Charlie Marsh and Astral to Codex team
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Welcome to OpenAI! Very excited to be working together and to make great tools to make developers everywhere more productive. Charlie Marsh (@charliermarsh) We've entered into an agreement to join OpenAI as part of the Codex team. I'm incredibly proud of the work we've done so far, incredibly grateful to everyone that's supported us, and incredibly excited to keep building tools that make programming feel different. — https://nitter.net/charliermarsh/status/2034623222570783141#m
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Codex has become exceptionally good at bug detection
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codex has gotten very good! Garry Tan (@garrytan) OK Codex is GOAT at finding bugs and finding plan errors — https://nitter.net/garrytan/status/2034496637150834708#m
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OpenAI Introduces GPT-5.4 Mini: Faster, Better Coding Support
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introducing gpt-5.4 mini: OpenAI (@OpenAI) GPT-5.4 mini is available today in ChatGPT, Codex, and the API. Optimized for coding, computer use, multimodal understanding, and subagents. And it’s 2x faster than GPT-5 mini. openai.com/index/introducing… — https://nitter.net/OpenAI/status/2033953592424731072#m
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Subagents Now Supported in Codex for Faster Work
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Subagents are now supported in Codex. They're very fun and make it possible to get large amounts of work done *quickly*: https://t.co/Fn2A1TV8UP
— Greg Brockman (@gdb) 17 mars 2026Subagents are now supported in Codex. They're very fun and make it possible to get large amounts of work done *quickly*:
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GPT-5.4 Achieves $1B Annual Revenue Rate Week One
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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!
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Excel Game with AI-Powered Formula Engine
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building a working game in excel, with a built-in game AI powered by complex formulas:
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Building Confidence Through Increased AI Tool Usage
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“The more you use AI, the more confident you’ll become in leveraging those tools”
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AI Achieves Milestone: Writing Coherent 1000-Line Programs
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we used to have an internal goal, which felt totally impossible, of an AI that could write a coherent 1000-line program. the tech has come a long way!