January 2026 might be the month of langs created to be used by AI. Usually the chief concern is saving on tokens, prompted by context window anxiety. (This completely disregards the fact that agents thrash the context window by doing wrong things, then attempting to fix them; or by reading unrelated stuff; or by calling unhelpful tools; etc)

https://news.ycombinator.com/item?id=46450217 Nerd: A language for LLMs, not humans (1 Jan 2026)

https://news.ycombinator.com/item?id=46571166 Show HN: GlyphLang – An AI-first programming language (11 Jan 2026)

https://news.ycombinator.com/item?id=46583581 Show HN: B-IR – An LLM-optimized programming language (12 Jan 2026)

https://news.ycombinator.com/item?id=46684958 Nanolang: A tiny experimental language designed to be targeted by coding LLMs (19 Jan 2026)

See also

https://news.ycombinator.com/item?id=46582728 Which programming languages are most token-efficient? - where someone said "Someone has made a programming language called Sui, which is said to be designed for LLMs." https://github.com/TakatoHonda/sui-lang

And many other threads I didn't find right now

Not a language, but we are having very good success using https://brannn.github.io/simplex/ for autonomous one-shot workflows. It seems to be a very high-fidelity input for LLMs.