a CoT means externally iterating an LLM

Not necessarily. Yes, a chain of thought can be provided externally, for example through user prompting or another source, which can even be another LLM. One of the key observations behind these models commonly referred to as reasoning is that since an external LLM can be used to provide “thoughts”, could an LLM provide those steps itself, without depending on external sources?

To do this, it generates “thoughts” around the user’s prompt, essentially exploring the space around it and trying different options. These generated steps are added to the context window and are usually much larger that the prompt itself, which is why these models are sometimes referred to as long chain-of-thought models. Some frontends will show a summary of the long CoT, although this is normally not the raw context itself, but rather a version that is summarised and re-formatted.

Archived versions of Reddit pages haven’t worked for a while now. You can find snapshots listed, but when you try to load them, the comment section is empty.

Written with a lot of “help” from Claude Sonnet 4 LLM

Thanks, but no thanks.

I’m all for showing and discussing personal projects, but I don’t see what meaningful discussion we could have over something taken out of a black box.

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It’s a shame. The app worked well, and it was nice to have a native look rather than a generic web one.