chatgpt native integration for writing emails: https://t.co/VfYsXs3LbL
— Greg Brockman (@gdb) 20 décembre 2025
chatgpt native integration for writing emails:
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ChatGPT Native Integration for Writing Emails
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Unsupervised Learning Confusion: Training on Test Data Explained
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Man discovers unsupervised learning and confuses it with what "training on test" actually means.
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Internal version contains sensitive TPU compiler backend code examples
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The internal version also has additional examples in code that is more sensitive (e.g. changes to the TPU compiler backend) that we aren't able to include in the external version.
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Collection of Performance Optimization Tips and Tricks
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Many techniques are probably known to readers, but we felt it was nice to have a collection of tips and tricks, ranging from high-level algorithmic improvements to low-level performancer optimizations collected together.
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Concrete Examples of Performance Improvement Techniques from 2001
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We've tried to give concrete examples of the various techniques. Some are high level descriptions of a set of performance improvements, like this set of changes from 2001:
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Stanford Hiring Data Science Postdocs in Causal Inference
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We're hiring data science postdocs! Work on interdisciplinary projects in causal inference, ML, econometrics, and more. Recent PhDs with coding expertise and cross-disciplinary experience are encouraged to apply: https://
datascience.stanford.edu/programs/data-
science-fellows
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Codex Now Supports Skills via AgentSkills Standard
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codex now supports skills, per the https://t.co/b7hv3woe7S standard: https://t.co/srRLNaXnnk
— Greg Brockman (@gdb) 19 décembre 2025codex now supports skills, per the http://
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OpenAI Adopts SKILLs Standard for Codex Task Configuration
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OpenAI is adopting the SKILLs standard in Codex, introduced by Anthropic recently, to configure specific and reusable task instructions.
— 🚨 AI News | TestingCatalog (@testingcatalog) 19 décembre 2025
– ✅ MCPs
– ✅ SKILLs https://t.co/nsI6AI6lLv pic.twitter.com/Rf6lISeViEOpenAI is adopting the SKILLs standard in Codex, introduced by Anthropic recently, to configure specific and reusable task instructions. – MCPs
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Codex Skills Support: Automating Linear Tickets and GitHub CI Fixes
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Excited for Codex to support skills!
— Romain Huet (@romainhuet) 19 décembre 2025
This thread shares examples of skills we’re shipping, inspired by how we use Codex internally at OpenAI, like having Codex automatically update Linear tickets or fix GitHub CI failures. https://t.co/f9WWP9GMf2Excited for Codex to support skills! This thread shares examples of skills we’re shipping, inspired by how we use Codex internally at OpenAI, like having Codex automatically update Linear tickets or fix GitHub CI failures.