LLM-related Bookmark Summary (2026.9.21-2026.9.27): Opus 5.5 off to a strong start, gpt-6sol and luna arrive, reports of OpenAI agent accidents continue, US-China talk…

As mentioned in "Trying to have an LLM summarize weekly LLM-related bookmarks," I have an LLM summarize the LLM-related ...

If you're making a game with AI, start with something you can play in 30 seconds. Designing and testing with a typing game

I was playing a typing game made with AI the other day, and I got more hooked than I expected. Before I knew it, I was ...