lmao first thing I saw when I woke up – you can just codex things!
@reach_vb
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How Students Use Codex: Key Use Cases
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working on something, if you’re a student – how do students use codex? what use-cases does it support you with?
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Incandescent vs. LED Lighting: Infrared Light and EU Regulations
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Excited to Support Dr. Datta and his lab in their mission to push healthcare research in India! Codex India
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Codex acceleration in the last week with GPT 5.4, Windows, and new skills
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Codex in *just* the last week: > GPT 5.4
> Codex for Windows
> Fast mode
> Skills – Playwright Interactive, Slides, Spreadsheets and more Non app related but relevant: > Codex Security
> Codex for OSS Can you feel the acceleration, anon? -
GPT 5.4 praised as a step change from GPT 5.2
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Yes, GPT 5.4 is a pretty incredible and a step change from GPT 5.2
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Reactions to multi agents in the wild and improvement feedback
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love to see multi agents in the wild, any feedback on what could be better?
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GPT-5.4 outperforms GPT-5.2 on code and knowledge benchmarks
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that’s not true, evals comparing 5.2 vs 5.4 (thinking only) Coding (SWE-Bench Pro) > GPT-5.2: 55.6%
> GPT-5.4: 57.7%
→ ~+2.1 pts improvement in solving real-world repo bug-fix tasks. Knowledge-work benchmark (GDPval) > GPT-5.2: ~71% win/tie vs professionals
> GPT-5.4: 83% -
New model more token efficient than 5.3 Codex with thinking features
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yes! it's even more token efficient than 5.3 Codex and brings all the other good stuff from prior thinking models