OpenAI teases “5.4” as reports point to a 1M+ token context window and “extreme reasoning,” amid scrutiny over its Pentagon deal.

Using an AI coding assistant to migrate an application from one programming language to another wasn’t as easy as it looked. Here are three takeaways.

Update (2025/10/31): Incorporated QOJ OCR data from @cjwen6. Thanks a lot for the contribution! Also added HTTPS. Simplify the statement & remove background by prompting LLM. Embed the simplified ...

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